TWI231297B - Method of removing oxygenate contaminants from an olefin stream - Google Patents

Abstract

This invention is directed to a method of removing acetaldehyde, CO2 and/or water from an ethylene and/or propylene containing stream. In this invention, acetaldehyde and C4+ olefins are substantially removed from the ethylene and/or propylene containing stream. The stream is then acid gas treated. The ethylene and/or propylene streams which are separated and recovered according to this invention can be further processed, for example, to make polymers such as polyethylene and polypropylene.

Description

1231297 A7 B7 -_ ^ V. Description of the Invention (1) The present invention relates to a method for removing oxygen-containing pollutants from an olefin stream. In particular, the invention relates to a method for removing acetaldehyde, CO2 and / or water from a stream containing ethylene and / or propylene. BACKGROUND OF THE INVENTION Olefins, especially C 2 and C 3 olefins, are suitable feed sources for the manufacture of derivative products such as oligomers (e.g., higher olefins) and polymers such as polyethylene and polypropylene. Olefin feed sources have traditionally been produced from cracked petroleum feedstocks. US 5,090,977 discloses a method for producing olefins by continuous cracking. The process includes separating the olefin product into methane, hydrogen, ethane, ethylene, propylene, and C5 + streams. The disclosed separation preferentially produces propylene and no propane, butane, butene or butadiene streams are produced. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs (Please read the notes on the back before filling out this page)

In any case, oxygen-containing feedstocks are becoming an option for the production of olefins from petroleum feedstocks, and in particular most ethylene and propylene for higher carbon olefins and plasticization feedstocks. Generally, olefins are formed by contacting an oxygen-containing substance component with a molecular sieve catalyst to catalytically convert the oxygen-containing substance to an olefin. For example, U S 4, 4 9 9, 3 2 7 discloses a method for producing olefins from methanol using any type of silicoaluminophosphate (S A P 0) molecular sieve catalyst. The method is based on the temperature between 300 ° C and 500 ° C and pressure between 0 · 1 atmosphere and 100 atmosphere and weight space-time velocity (WHSV) between 0 · 1 and 4 0 hr _ 1 When implemented. This method is highly selective for the production of ethylene and propylene. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) -4- 1231297 ΑΊ ______ Β7_ V. Description of the invention (2) us 6, 12 1, 504 also reveals the use of a molecular sieve (please read the back Note for refilling this page) Method for producing olefin products from oxygen-containing materials. Water and other unwanted by-products are removed from the olefin product by contact with a quench medium. After contact with the quenching medium, a light product fraction is obtained, which includes the desired olefins, but also includes dimethyl ether, methane, C0, C02, ethane, propane and other minor components such as water and Unreacted oxygenate material. To further process olefins, it is often necessary to reduce or remove undesirable by-products present in the olefin composition. For example, us 4,474,647 reveals that dimethyl ether may adversely affect the oligomerization of certain olefins. This patent describes a method for removing dimethyl ether from a C 4 and / or C 5 olefin stream using distillation. This stream is distilled and separated into overhead and bottom streams. The overhead stream contains dimethyl ether, water, and various hydrocarbons, and the bottom stream contains purified olefins. • US Pat. No. 5,914,433, printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economics, discloses a method for manufacturing olefin compositions, and a system for removing non-olefin by-products (such as CO2). The dehydrated olefin composition is washed with caustic soda to remove CO2, and the washed olefin composition is dried to reduce the added water, which is the result of caustic washing. U.S. Patent 5,720,929 discloses a method that includes producing isobutene from isobutane. Isobutylene is cooled and water is stripped from the product. Additional water was removed by washing the product with methanol.

Eng et al., Integration of the UOP / HYDRO MTO Process into Ethylene Plants, "10th Ethylene Producers' Conference, 1 998, revealed a process for the production of olefin compositions from methanol. The process shows that the paper standards are applicable to Chinese national standards (CNS ) A4 specification (210X 297 mm) -5- 1231297 A7 _B7_ V. Description of the invention (3) shows that methanol and dimethyl ether are compressed from the olefin product and recycled to the methanol feed of the hydrocarbon reactor, Ethylene and propylene are recovered. (Please read the notes on the back before filling out this page} EP — B 1 — 〇〇0 0 03 reveals a method for extracting dimethyl ether from a vapor stream containing ethylene and propylene using a methanol washing system Methanol scrubbing removes significant amounts of dimethyl ether, but also removes significant amounts of ethylene and propylene. Looks for additional ways to remove undesirable components from olefin streams. In particular, looks for oxygenated Hydrocarbons (especially dimethyl ether) and methods for reducing CO2 and water in the olefin product stream to ppm levels without removing significant amounts of olefins. SUMMARY OF THE INVENTION The present invention provides a process for removing olefins from olefin streams. Method to remove oxygen-containing components (such as acetaldehyde, CO2 and / or water). It is desirable to remove such oxygen-containing components' because this component may poison catalysts used for further processing of olefin compositions. In addition The presence of certain oxygen-containing compounds, such as acetaldehyde, may cause blockage of other olefin alcoholization units, such as acid gas processing units. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs in a specific example, the present invention provides a process A method for a stream containing ethylene and / or propylene. The method includes providing an olefin stream containing ethylene, propylene, C 4 + olefins, and acetaldehyde. The olefin stream is divided into a first part and a second part, wherein the first One part includes at least most of the ethylene and / or propylene present in the olefin stream, and the second part includes at least most of the C 4 + olefins and acetaldehyde present in the olefin stream. Part of the treatment of acid gas. This paper size applies to the Chinese National Standard (CNS) A4 specifications (210X297 mm) -6- 1231297 A7 _____B7 V. Description of the invention (4) (Please read the note on the back first Please fill in this page again.) In another specific example, the olefin stream is separated by distillation. Preferably, the distillation is an extractive distillation using an extractant. The preferred extractant has an average boiling point of at least 1 at 1 atm. 0 ° F (38 ° C). Methanol is one of the preferred extractants. In another embodiment, the present invention provides a process for treating olefins containing oxygen and / or propylene in the process of producing olefins from oxygen-containing substances. Approach to logistics. The method includes contacting an oxygenate with a molecular sieve catalyst to form an olefin stream containing ethylene, propylene, and acetaldehyde. The olefin stream is divided into a first part and a second part, where the first part includes at least a large part of the ethylene and / or propylene present in the olefin stream, and the second part includes at least a large part of the olefin stream. Part of the acetaldehyde. After that, the first part is treated with an acid gas. In another specific example, a method for processing a stream containing ethylene is provided. The method includes providing an olefins stream containing ethylene, propylene, C4 + olefins, and acetaldehyde. The olefin stream is divided into a first part and a second part, where the first part includes at least a majority of the ethylene present in the olefin stream, and the second part includes at least a large part of the hydrocarbon burning stream Propylene, C 4 + olefins and acetaldehyde. After that, the first part is treated with acid gas. 0 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. In another specific example, a method for treating streams containing ethylene and acrylic acid is provided. The method includes providing an olefins stream containing ethylene, propylene, C 4 + olefins, and acetaldehyde. The olefin stream is divided into a first part and a second part, where the first part includes at least a majority of the ethylene and propylene present in the olefin stream, and the second part includes at least a large part of the olefin stream C 4 + olefins and acetaldehyde. After that, the paper size for acid gas in the first part is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -7- 1231297 A7 B7 printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5) Processing. In another specific example, the olefin stream provided further includes CO 2, and the first part additionally includes at least a large portion of CO 2 in the provided olefin stream. It is further desirable to treat the first part with an acid gas to remove the removed CO2. As an example, the step of subjecting the first portion to an acid gas treatment includes contacting the first portion with a caustic. Figure 1 shows a flow chart of a specific example of separating acetaldehyde and C 4 + olefins from a stream containing ethylene and / or propylene according to the present invention. Comparison table of main components 1 0 Conveying pipe 1 4 Conveying pipe 16 Quenching tower 18 Conveying pipe 2 0 Conveying pipe 2 2 Conveying pipe 2 4 Compressor 2 6 Conveying pipe 2 8 Distillation pipe column 3 0 Conveying pipe 3 2 Conveying pipe 3 4 Conveying pipe dimensions of this paper apply Chinese National Standard (CNS) A4 specification (210X297 mm) — _ -8- Γ Please read the precautions on the back before filling this page)

1231297 A7 _ B7 V. Description of the invention (6) 6 Caustic washing column 8 Conveying pipe 0 Conveying pipe 2 Conveying pipe 4 Dryer system 6 Conveying pipe 0 Conveying pipe 2 Conveying pipe 4 Conveying pipe (Please read the precautions on the back first Refill this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economics Detailed description of the invention The present invention provides a method for removing oxygen-containing pollutants (such as acetaldehyde, CO2, and / or water) from a hydrocarbon stream. Generally, the method includes providing an olefin stream containing ethylene, propylene, and acetaldehyde, and then removing at least a significant portion of the acetaldehyde present in the olefin stream. The olefin stream may come from any conventional source, and may include other components such as CO2, water, and / or C4 + olefins. The present invention is particularly advantageous for removing oxygenate pollutants from an olefin stream during the production of olefins from an oxygenate. Among these streams, acetaldehyde, CO2, and water can be present at relatively high concentrations, and their presence can cause problems in the further processing of ethylene and propylene originating from these streams. For example, these contaminants can form catalysts for polyethylene and polypropylene alone, and the presence of acetaldehyde also has problems with the removal of acid gases (such as CO 2). In a specific example of the present invention, the provided olefin logistics includes not more than the paper size applicable to China National Standard (CNS) A4 specifications (210X297 mm) -9-1231297 A7 B7 V. Description of the invention (7) about 5% by weight The acetaldehyde 'is preferably not more than about 2% by weight of acetaldehyde, and more preferably not more than about 1% by weight of acetaldehyde. Of course, for acetaldehyde to be removed from the olefin stream, some measurable content must be present. In a specific example, the provided hydrocarbon stream will include at least about 1000 w PP m acetaldehyde; in another specific example, at least about 500 wppm acetaldehyde; and in another specific example, at least About 1,000 wP Pm acetaldehyde. In another specific example, the provided olefin stream includes at least about 25 weight percent ethylene. Preferably, the olefin stream provided comprises from about 25% by weight ethylene to about 75% by weight ethylene, more preferably from about 30% by weight to about 60% by weight, and most preferably from about 35% by weight % To about 50% by weight of ethylene. In another specific example, the provided olefin stream also includes at least about 20% by weight propylene. Preferably, the olefin stream provided comprises from about 20% by weight ethylene to about 70% by weight propylene, more preferably from about 25% by weight to about 50% by weight, and most preferably from about 30% % To about 40% by weight of propylene. Desirably, the olefin stream provided contains a relatively low concentration of ethane, and preferably, the concentration of ethane is lower than the concentration of propane. Preferably, the olefin stream includes no more than about 4% by weight ethane, more preferably no more than about 3% by weight ethane, and most preferably no more than 2% by weight ethane. It is also desirable Yes, the provided olefin stream contains a relatively low concentration of propane. Preferably, the olefin stream includes no more than about 5% by weight of propane, more preferably no more than about 4% by weight of propane, and most preferably is not large. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 Mm) (Please read the notes on the back before filling this page).

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, 1T -10- 1231297 A7 B7 V. Description of the invention (8) Propane in 3% by weight. In another embodiment of the invention, the olefin stream provided includes both ethylene and propylene. Desirably, the olefin stream contains at least about 50% by weight ethylene and propylene. Preferably, the olefin stream comprises from about 50% to about 95% by weight ethylene and propylene, more preferably from about 55% to about 90% by weight ethylene and propylene, and most preferably from about 60% % To about 85% by weight of ethylene and propylene. Desirably, in the present invention, the provided olefin stream contains water not greater than about 15,000 w p p m. Preferably, the hydrocarbon-fired stream comprises no more than about 10,000 w p p m of water, more preferably, no more than 5 '0 0 w p p m, and most preferably, no more than about 1' OOO wppm water. In the present invention, the olefin stream need not be completely dried. That is, the hydrocarbon stream can contain some water. The advantage of an olefin stream containing some water is that no additional and / or complicated drying equipment will be required before the acetaldehyde is separated from the olefin stream. Preferably, the olefin stream comprises at least about 100 w p p m of water, more preferably, at least about 100 W p p m of water, and most preferably, at least about 200 w p p m of water. In another specific example, the provided olefin stream includes no more than about 40% by weight of C4 + hydrocarbons. Preferably, the provided hydrocarbon-fired stream comprises no more than about 30% by weight of C 4 + olefins, and more preferably no more than about 20% by weight of 0 4+ hydrocarbon-burning hydrocarbons. . Separation of at least a large part (ie, at least 50%) of acetaldehyde and C 4 + olefins in the olefin stream, followed by ethylene and / or propylene-containing materials. The paper size applies the Chinese National Standard (CNS) A4 specification. (210X: 297 mm) f Please read the notes on the back before filling out this page)-Order printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -11-1231297 A7 _B7 V. Description of the invention (9) The flow was recovered, the The stream contains at least a majority (ie, at least 50%) of the ethylene and / propylene in the provided olefin stream. Prior to the manufacture of polymers or other derived products, these logistics containing ethylene and / or propylene are not required if further processed. In a specific example of the present invention, propylene is separated together with acetaldehyde and C 4 + olefins. In this specific example, the ethylene-containing stream is separately recovered and processed or further processed. In another embodiment of the present invention, ethylene and propylene are recovered in the first part, and the two are separated thereafter. The stream can be processed before or after separation if desired. However, it is preferred that the acid gas is treated (ie, the acid gas is removed, such as C 0 2), after which the components are separated into an ethylene stream and a propylene stream. Each stream is then further processed. In a specific example, for example, the recovered ethylene and / or propylene stream includes acetaldehyde not greater than about 100 w p p m. Preferably, the recovered acetonitrile and / or acrylic acid stream comprises acetic acid not greater than about 50 w p p m, more preferably not greater than about 5 w p p m, and most preferably not greater than about 1 w p p m. In another embodiment of the present invention, ethylene is recovered in a first portion, and the first portion contains at least a majority of the ethylene present in the provided olefin stream. Preferably, the recovered ethylene stream comprises at least about 70 weight percent ethylene, more preferably at least about 80 weight percent ethylene, and most preferably at least about 90 weight percent ethylene, based on the total weight of the stream. When ethylene and propylene are recovered together in a stream, the overhead stream contains at least most of the ethylene and propylene that are present in the provided olefin stream. This paper is sized to the Chinese National Standard (CNS) A4 (210X297). (Centi) .nnnn II-I _ _f Please read the notes on the back before filling out this page), ιτ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-12- 1231297 A7 B7 V. Description of invention (10) (please first Read the notes on the back and fill out this page). Preferably, the recovered ethylene and propylene stream comprises at least about 70% by weight of ethylene and propylene, more preferably at least about 80% by weight of ethylene and propylene 'and most preferably at least about 90% by weight of ethylene and propylene. Propylene, calculated as total logistics weight. It is also desirable that the recovered ethylene and / or propylene stream include no more than about 0.1% by weight of C 4 + olefins. Preferably, the recovered ethylene and / or propylene stream includes no more than about 0.05% by weight (: 4 + olefins, and more preferably no more than about 0.05% by weight C 4 + olefins Calculated based on the total weight of the stream. Removal of acetaldehyde from the olefin stream can be accomplished by any conventional means with the removal of such by-products to an appropriate level. The conventional distillation technique is a particularly suitable method based on the boiling point The effective temperature and pressure for separating acetaldehyde and C 4 + olefins from ethylene and / or propylene are used. In order to obtain a particularly high degree of separation of acetaldehyde and C 4 + olefins from ethylene and / or propylene, extractive distillation It can be used arbitrarily. Extractive distillation is different from the conventional distillation in that ethylene and / or propylene are extracted from acetaldehyde and C 4 + olefins by using an extractive agent to assist the distillation process. Employees of the Intellectual Property Bureau of the Ministry of Economy Consumption Cooperative printed extractive distillation is carried out using a vessel or tower with an internal condensate or fractionation tray which produces different temperatures from the top to the bottom of the tower. The top of the tower is the colder part, And in The higher volatile components in the feed are removed from the top of the tower. The extractant or solvent is added to the extraction distillation vessel or tower in order to increase or suppress the volatility of oxygen-containing pollutants (such as acetaldehyde). This makes it easy to distill out oxygen-containing substances from olefins, which leads to the removal of this paper from the Chinese National Standard (CNS) A4 specification (210X297 mm) -13- 1231297 A7 _____B7 V. Description of the invention (11) In addition to oxygen Substances to very low levels. (Please read the notes on the back before filling this page.) The extractants that can be used in the present invention are liquid at 1 at 1Ώ. These extractants also have an average boiling point of at least 10 〇 (3 8 ° c), preferably at least 120 ° F (49 ° C), and more preferably at least 150 ° T (66 ° C). The average boiling point, as defined herein, takes into account each of the extractants The boiling point of a compound (based on average weight). For example, an extractant containing 90% by weight of a compound having a boiling point of 100 ° and 10% by weight of a compound having a boiling point of 200 ° will have an average boiling point of 1 1 〇 ... The extractant is also desirably extremely This composition preferably contains compounds such as water, monohydric alcohols, polyhydric alcohols, or mixtures thereof. Preferred monohydric alcohols include methanol, ethanol, and propanol. Preferred polyhydric alcohols include glycols. Preferred glycols include ethylene glycol and triethylene glycol. The extractant contains at least about 75 weight percent water, monohydric alcohols and / or polyhydric alcohols, preferably at least about 85 weight percent, more preferably At least about 90% by weight, and optimally at least 95% by weight, are desirable. In the present invention, methanol is the best extractant. The Intellectual Property Bureau of the Ministry of Economic Affairs's consumer cooperative prints extractive distillation to remove the presence of Very low concentrations of oxygenate contaminants in olefin streams are very effective. In a specific example of the present invention, an extractant is added to the top of the extraction distillation column, and an olefin containing acetaldehyde is added to the side of the column. The separated ethylene and / or propylene is recovered from the column in the first part, preferably from the top of the column, and the separated C 4 + and acetaldehyde are recovered in the second part. Best from the bottom of the string. Most of the added extractant (that is, at least 50% added to the column) is also from the bottom of the column, preferably together with the recovered c 4 + and acetaldehyde, which is suitable for this paper. China National Standard (CNS) A4 Specification (210X297 mm)-14- 1231297 A7 _______B7 V. Description of Invention (12) Recycling. (Please read the notes on the back before filling this page) In a specific example of the present invention, the separated C 4 + olefin and acetaldehyde streams include at least a large part of the provided olefin streams (ie, at least 50%) of acetaldehyde and c 4 + olefins. Preferably, the stream includes at least about 5% by weight of c 4 + olefins, more preferably about 10% by weight of C 4 + olefins, and most preferably about 15% by weight of C 4 + olefins. Recalculate. C 4 + -containing streams also include acetaldehyde. In one specific example, the stream includes at least about 1,000 wppm acetaldehyde; in another specific example, at least about 1,500 wppm; in another specific example, at least about 2,000. wppm, calculated as total logistics weight. In another embodiment of the invention, the stream containing the separated C 4 + and acetaldehyde products includes an extractant. Preferably, the stream includes at least about 50% by weight of an extractant, more preferably, at least about 60% by weight, and most preferably at least about 70% by weight. Preferably, the extractant is methanol. Although the olefin stream may come from any conventional source, it contains acetaldehyde. The present invention is particularly suitable for removing acetic acid from an olefin stream in an olefin production process from an oxygenate. In a specific example of the present invention, the printed hydrocarbon logistics system of the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, which contains acetic acid, is obtained by contacting oxygen-containing materials with molecular sieve catalyst. In the example, the oxygen-containing material raw material contains one or more oxygen-containing materials, and more particularly, one or more organic compounds containing at least one oxygen atom. In the most preferred embodiment of the method of the present invention, the oxygen-containing substance in the raw material is one or more alcohols, preferably aliphatic alcohols, wherein the aliphatic portion of the alcohol has 1 to 20 carbon atoms, preferably from 1 to 1 Q sizes of this paper are applicable to Chinese National Standard (CNS) A4 specifications (210X297 mm) -15- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 1231297 A7 ___B7_ V. Description of the invention (13) Carbon atom 'and most Preferably from 1 to 4 carbon atoms. Alcohols used as starting materials for the method of the present invention include lower straight or branched chain aliphatic alcohols and their unsaturated counterparts. Non-limiting examples of oxygenates include methanol, ethanol, n-propanol, isopropanol, methyl ethyl ether, dimethyl ether, diethyl ether, diisopropyl ether, formaldehyde, dimethyl carbonate, dimethyl Ketones, acetic acid and mixtures thereof. In a preferred embodiment, the raw material is one or more selected from the group consisting of methanol, ethanol, dimethyl ether, diethyl ether, or a combination thereof, preferably methanol and dimethyl ether, and most preferably methanol. The feedstock in a specific example includes one or more diluents, which are typically used to reduce the concentration of the feedstock and are generally non-reactive with the feedstock and molecular sieve catalyst composition. Non-limiting ranges of diluents include nitrogen, argon, nitrogen, carbon monoxide, carbon dioxide, water, essentially unreactive paraffins (especially alkanes such as methane, ethane, and propane), essentially non-reactive aromatics Compounds and mixtures thereof. The most preferred diluents are water and nitrogen, and 'water is particularly preferred. The diluent is either added directly to the feedstock into the reactor, or directly into the reactor, or to the molecular sieve catalyst composition. In a specific example, the content of the diluent in the raw material is in a range from about 1 to about 99 mol percentage, preferably from about 1 to 80 mol percentage based on the total amount of the raw material and the diluent. More preferably from about 5 to about 50, and most preferably from about 5 to about 25. In a specific example, other hydrocarbons, whether directly or indirectly, are added to the raw materials' and include fumes, bonds, aromatics (please refer to US 4, 6 7 7, 2 4 2, addition ofaromatics) or mixtures thereof , Preferably propylene, butene, pentene, and other original paper sizes with 4 or more carbons are applicable to China National Standard (CNS) A4 specifications (210X297 mm) (Please read the precautions on the back before filling this page)

-16- 1231297 A7 ^^ __ £ Z ___ 5. Description of the invention (14) hydrocarbons, or mixtures thereof. (Please read the precautions on the back before filling this page.) Molecular sieves that have the ability to convert oxygen-containing substances to olefinic compounds include zeolite and non-zeolite molecular sieves, and they are of large, medium and small pore types. Non-limiting examples of these molecules are small-pore molecular sieves, A E I, A F D,

ApC, ATN, ATT, ATV, AWW, BIK, CAS, CHA, CHI, DAC, DDR, EDI, ERI, G〇〇, KFI, LEV, LOV, LTA, MON, paU, PHI, ruler ^ 10, 1100, Ding1 ^ 〇, and their substituted forms; mesoporous molecular sieves, AF〇, AEL, EU〇, HEU, FER, MEL, MFI, MTW, M τ τ, τ〇N And their substituted forms; and macroporous molecular sieves, EM T, F au and their substituted forms. Other molecular sieves include ANA, BEA, CFI, CL0, DON, GIS, LTL, MER, MOR, MWW and SOD. Non-limiting examples of preferred molecular sieves, especially the conversion of oxygen-containing materials to olefins' including AEL, AFY, BEA, CHA, EDI, fau, fer, gis, lta, ltl, mer, Intellectual Property Office of the Ministry of Economic Affairs Employee consumer cooperatives print MFI, "〇11'1 ^ 丁丁, 1 ^ ~~, 丁 厶 1 ^, and 丁 〇1 ^. In a preferred embodiment, the molecular sieve of the present invention has AEI topology or CHA topology or The mixture is preferably CHA topology. Molecular sieve materials all have a 3-dimensional, 4-connected backbone structure of a T04 tetrahedron with shared vertices, where T is any tetrahedral coordinated cation. These molecular sieves are typically defined by pores The size of the ring is described, where the size is calculated by the number of T atoms on the ring. Other characteristics of the skeleton type include the formation of a cage paper size applicable to the Chinese National Standard (CNS) A4 specification (210x297 mm) -17-1231297 A7 B7 V. Invention Explain the arrangement of the ring of (15), and when present, the dimension of channels, and the spaces = between the cages. ○ See van Bekkum, et al., Introduction to Zeolite Science and Practic e, Second Completely Revised and Expanded Edition, Volume 137, pages 1-67, elsevier Science, BV, Amsterdam, Netherlands (2001) 0 Small, medium, and large pore molecular sieves have sizes ranging from 4 -rings to 1 2 -rings or larger Framework type. In a preferred embodiment, the molecular sieve has an 8-, 10- 1 2 + ring structure or larger, with an average pore size ranging from about 3 A to about 15 A. In a preferred embodiment, the Molecular sieves, preferably silicoaluminophosphate molecular sieves, having 8-rings and an average pore size of less than about 5 A, preferably ranging from about 3 A to about 5 A, more preferably from 3 A to about 4.5 A, and Best (please read the notes on the back before filling out this page) The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints from 3 • 5 A to about 4 • 2 A. Molecular sieves, especially zeolites and zeolite-type molecular sieves, better The molecular framework with tetrahedron units with 1 y, preferably 2 or more vertices. These molecular sieves with silicon, aluminum and phosphorus as substrates, and silicon containing metals Λ aluminum and phosphorus as substrates Qualitative molecule It has been described in detail in most publications, for example, US 4,5 6 7 5 0 2 9 (M e AP 〇 where M e is Μ g, Μ η, Z η or C) US 4, 4 4 0 , 8 7 1 (SAP 〇) > EP — A — 〇 1 5 9 6 2 4 (ELAPS 〇 where E 1 is ASB e > B, C r, C ο, G a, G e, F e L i Μ g Μ η, T i or Z n), US 4 5 5 5 4, 1 4 3 (F e AP 〇) This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) -18-1231297 A7 B7 V. Description of the invention (16) US 4,822,478, 4,683,217, 4,7 4 4,885 (FeAPS〇), EP-A-〇158975 and US 4,935,216 (ZnAPS〇) , EP — A — 〇161489 (CoAPSO), EP — A — 〇158976 (ELAP〇, whose EL is 0, Factory 6,] ^ §,] ^ 11, Ding 1 or 211), US 4,310,440 (A1P〇4), EP-A-〇158350 (SENAPSO), US 4,973,460 (LiAPS〇), US 4,888,167 (GeAP〇), US 5,057,295 (BAPS〇), US 4,738,837 (CrAPS〇), US 4 759,919 and US 4,851,106 (C r APO), US 4,758,419, 4,882,038, 5,434,326 and 5,478,787 (MgAPS〇), US 4,554, 143 (FeAP〇), US 4,894,213 (AsAPS〇), US 4,913,888 (AsAP〇), US 4,686,092, 4,846,956 and 4,793,833 (MnAPS〇) , US 5,345, Oil and 6,156,931 (Μ n AP 0), US 4,737,353 This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) (Please read the note on the back first (Fill in this page again)

-19- 1231297 A7 B7 V. Description of the invention (17) (BeAPS〇), US 4, 940, 57 (BeAP〇), US 4,801,309, (Please read the precautions on the back before filling this page) 4,684,617 and 4,880,520 (TiAPS〇), US 4,500,651, 4,551,236 and 4,605,492 (11.8?), US 4,824,554, 4,744,97〇 (CoAPS 0), US 4,735,806 (GaAPSO), EP — A— 0 2 9 3 9 3 7 (QAPS◦, where Q is a framework oxide unit [Q〇2) ), And US 4,567,029, 4,686,093, 4,781,814, 4,793,984, 4,80,1,364, 4,853,197, 4,917,876, 4, 952,384, 4,956,164, 4,956,165, 4,973,785, 5,241,093, 5,493, 066 and 5,675,050 are incorporated herein by reference. Other molecular sieves printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs include those disclosed in EP — 0 8 8 8 1 8 7 B1 (microporous crystalline metal phosphate, (SAP 0 4 (UI 0-6)), US 6,04,898 (molecular sieves and alkaline earth metals), U.S. Patent Application Serial No. 09/5 1 1, 9 4 3 (combined hydrocarbon co-catalyst) filed on February 24, 2000 PCT W 0 01/64340 published on September 7, 2001 (including the paper size applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) -20- 1231297 A7 B7 V. Description of the invention (18 ) Molecular sieves with tritium), & R. Szostak, Handbook of Molecular Sieves, Van Nostrand Rein hold, New York (19 2 9), all of which are incorporated herein by reference. Better ones containing silicon, aluminum and / or phosphorus Molecular sieves and molecular sieves containing aluminum, phosphorus and arbitrary silicon include aluminophosphate (ALP 0) molecular sieves and silicoaluminophosphate (SAP 0) molecular sieves and substituted, preferably metal-substituted, ALPO and SAP〇 molecular sieves. Best The molecular sieves are SAP 0 molecular sieves and metal substituted SAP 0 molecular sieves. In a specific example, the metal It is an alkali metal of Group IA of the periodic table of the elements, an alkaline earth metal of Group IA of the periodic table of the elements, and a rare earth metal of Group II IB. The rare earth metal includes lanthanides: lanthanum, thorium, thorium, ammonium, thallium, thallium, IL, thorium, thorium , “, Bait, table, mirror, and distillate; and scandium or yttrium of the periodic table of elements, IVB, VB, VIB, VI IB, VI IB and IB transition metals of the periodic table, or any mixture of these metal types. In a preferred embodiment, the metal system is selected from the group consisting of Co, Cr, Cu, Fe, Ga,

Ge, Mg, Mn, Ni, Sn, Ti, Zn, and Zr, and mixtures thereof. In another preferred embodiment, these metal atoms are inserted into the skeleton of the molecular sieve through a tetrahedral unit, such as [M e 02], and have a net charge according to the valence state of the metal substituent. For example, in a specific example, when the metal substituent has a valence state of +2, +3, +4, +5, or +6, the net charge of the tetrahedral unit is between -2 and +2. In the example, as described in the above US patent case, molecular sieve is expressed by the experimental formula of anhydrous substance: m R: (Μ XA 1 y P z) 〇 This paper size is applicable. National Standard (CNS) A4 specification (210X297 Gongchu) (Please read the precautions on the back before filling out this page) Binding · Order -21-1231297 A7 B7 V. Description of the invention (19) where R represents at least one temp agent (tem ρ 1 atingagent), preferably organic Templating agent; m is the number of moles relative to R per mole (M x A 1 ypz), and m has a number from 0 to 1, preferably 0 to 0.5 ', and most preferably From 0 to 0; 3; X, 7 and 2 represent mole fractions of A1, P, and M serving as tetrahedral oxides, where M is a metal, and the metal is selected from the Periodic Table of Elements IA, I IA, IB, i I ig, 1 VB 'VB, ...' v 1 1 B, VI " B and one of the lanthanum group 'The preferred M is selected from the group consisting of C 0, C r, cu, F e, G a,

One of Ge, MS, Mn, Ni, Sn, Ti, Zn, and Zr. In a specific example, m is greater than or equal to 0 and z is greater than or equal to 0.01. 1 to about 1, 5, and z are • 1 5 to 0 4 to 0.5 (Please read the notes on the back before filling out this page) In another specific example, m is greater than 0. From 0 to about 0 25, y is from 0.4 to 0.025 to 0.5, more preferably, m is from 0x to 0.01 to 0,2, and y is from 0.00 to 0. 3 to 0.5. The SAP used in the present invention and the ALP 〇 molecular ornaments are printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, κ Industrial Consumer Cooperatives, x is Da Cong .7, and z Restricted 1 1 Examples include SAP 05, SAPO-8 , SAP〇, SAP〇-16, SAP〇-17, SA Ρ-Ο-SAPO — 20, SAP〇-3 1, SA p 〇_ 3 ^ SAP 0-3 5, SAPO — 36, SA p 〇_ 3 7 SAPO — 40, SAPO — 41, SAp〇—42 SAPO-44 (US 6,162,415), SAPO — 47, SAPO — 56, ALp〇—5, This paper standard is applicable to China National Standard (CNS) A4 specifications ( 210X297 mm) -22, 1231297 A7 _____B7 V. Description of the invention (20) ALP ◦ — 11, ALP〇-18, ALP〇31, ALP〇34, ALP〇36, ALP〇37, (Please first Read the notes on the reverse side and fill out this page) ALP ◦- One of the 6 or a combination of them, and molecular ornaments containing metal. More preferred zeolite-type molecular sieves include one of SAP〇18, SAP〇-34, SAP ◦-35, SAP 〇44, SA ΡΟ-56, ALP〇-18 and ALP〇-34, or a combination thereof, And more preferably, one or a combination of SAP-18, SAP〇34, ALP〇34 and ALP〇18, and a metal-containing molecular sieve, and most preferably SAP〇-3 4 or AL P ◦-18 or a combination thereof, and a metal-containing molecular sieve. In a specific example, the molecular sieve is within 2 or more unique phases having a crystalline structure in a molecular sieve composition. Growth material. In particular, internally grown molecular sieves are described in US Patent Muqiro fc > filed on August 7, 2001, and printed by the Huishi Industry and Employees Consumer Cooperatives. Application No. 09 / 924,016 and 1998 In PC Ding W9898 / 1496 published on 16th, both cases are incorporated herein by reference. In another specific example, the molecular sieve includes at least one internal growth phase of A E I and C Η A framework types. For example, s A P0-18, ALP0-18, and RUW-18 have the AE I framework type, and SAP ◦-3 4 have the CHA framework type. In a specific example, the molecular sieve used in the present invention is combined with one or more other molecular sieves. In another specific example, a preferred silicoaluminophosphate or aluminophosphate molecular sieve, or combination thereof, is combined with one or more of the following non-limiting exemplary molecular sieves, such as / 9 (US 3, 3 0 5 8, 0 6 9). This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -23- Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed 1231297 A7 B7 V. Description of the invention (21) ZS Μ-5 (US 3,702,886, 4,797,267 and 5,783,321), ZSM-11 (US 3,709,979, ZSM-12 (US 3,832,449), ZSM-12 and ZSM -38 (US 3,948,758), ZSM-2 2 (US 5,336,478), ZSM-23 (US 4, 〇76,842), ZSM-34 (US 4,086,186), ZSM — 35 (US 4, 〇16,245), ZSM—48 (US 4,397,827), ZSM-58 (US 4,698,217), MCM-1 (US 4,639,358), MCM- 2 (US 4,673,559), MCM-3 (US 4,632,811), MCM-4 (US 4,664,897), MCM-5 (US 4,639,357), MCM-9 ( US 4,880,611), MCM—10 (US 4,623,527), MCM—14 (US 4,619,818), MCM—22 (US 4,954,325), MCM- 41 (US 5,098,684), M—41S (US 5,102,643), MCM—48 (US 5,198,203), MCM—49 (US 5,236,575), MCM—56 copies Paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page)

-24-1231297 A7 A___B7____ V. Description of the invention (22) (US 5,362,697), ALP〇-11 (US 4,310,440), titanium aluminosilicate (TAS〇 (please read the back first) Please fill in this page again for the matters needing attention}), TAS〇- 45 (EP-A-〇229, -295), borosilicate (US 4, 2 5 4, 2 9 7), titanium aluminum phosphate (TAP 0 ) (US 4,500, 651), a mixture of ZSM-5 and ZSM-11 (US 4,229,424) 'ECR-18 (US 5,278,345), SAP conjugated to ALP 05-5 34 (US 5,972,203), PCT W 0 98/57743 (Molecular Sieve and Fischer-Tropsch) published on December 23, 1988, US 6,300,535 (MFI-bound zeolite), and mesoporous molecular sieve (US 6, 2 8 4, 6 9 6, 5, 098, 684, 5, 102, 643, and 5, 108, 725), all of which are incorporated herein by reference. Molecular sieves are obtained by combining a synthetic molecular sieve with an adhesive and / Or the matrix material is mixed to prepare or formulate the catalyst to form a sieve catalyst composition or a formulated molecular sieve catalyst composition. The formulated molecular sieve catalyst composition is prepared by conventional techniques such as spray drying, Spheroidization, extrusion, etc. Resulting in useful shapes and sizes of particles. There are a variety of different adhesives used to form molecular sieve catalyst compositions. Non-limiting ranges of adhesives used alone or in combination include various types of hydrated alumina, Silicon oxide and / or other inorganic oxide sols. A sol containing a better alumina is aluminuin chlorhydrol. Inorganic oxide sols act as similar glues to adhere to synthetic molecular sieves and this paper is in accordance with Chinese National Standard (CNS) a4 specifications ( 2 丨 0 > < 297 mm) -25- 1231297 A7 B7 V. Description of the invention (23) (Please read the notes on the back before filling out this page) Other substances' such as substrates, especially after heat treatment. After heating Inorganic oxide sol, preferably with low viscosity, is converted into inorganic oxide matrix components. For example, alumina sol will be converted into alumina matrix after heat treatment. With aluminum chlorhydrol and hydroxylated aluminum as the substrate The sol has the general formula: Almon (OH) oClP.x (H2O), where m is 1 to 20, η is 1 to 8, 0 is 5 to 40, and P is 2 to 15 and X are 0 to 30, the dispersion contains counter ions. In a specific example, the adhesive is A 1 i 3 04 (〇Η) 2 4 C 1 7 · 1 2 (Η 2 〇) , Which is described in GM Wolterman, et al ·, Stud. Surf. Sci., And Catal., 76, pages 105-144 (1 9 9 3), which is printed in the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Reference. In another specific example, one or more adhesives are mixed with one or more other non-limiting examples of alumina materials, such as aluminum oxyhydroxide, 7-oxide, boehmite, waterstone, and transitional alumina, such as α-oxidation. Aluminum, / 3-alumina, r-alumina, 5-alumina, ε-alumina, / c-alumina and p-alumina, trihydroxide, such as water oxygen, bayerite, nordstrandite, doyelite and Its mixture. In another specific example, the adhesive is an alumina sol, preferably including aluminum oxide, and optionally including some silicon. In another specific example, the adhesive is peptized alumina, which is used to prepare a sol or aluminum ion solution by treating an oxide hydrate, such as pseudobohemite, with an acid, preferably an acid that does not include a halogen. . Non-limiting examples of commercially available colloidal alumina sols include Nalco 8676 from Nalco Chemical Co., Naperville, Illinois. This paper is sized for the Chinese National Standard (CNS) A4 (210X297 mm)-26- 1231297 A7 B7 V. Description of the Invention (24) and Nyacol from PQ Corporation, Valley Forge, Pennsylvania (Please read the notes on the back before filling this page) In a preferred embodiment, the molecular sieve is mixed with one or more matrix materials. The matrix material is typically effective in reducing the total cost of the catalyst, acting as a heat sink to assist in masking the heat from the catalyst composition, such as hardening the catalyst composition during regeneration, increasing the catalyst strength, such as crushing strength and resistance to wear, And control the slew rate in a special method. Non-limiting examples of the matrix material include one or more rare earth metals, metal oxides, the metal oxides including titanium dioxide, doped magnesium oxide, hafnium oxide, beryllium oxide, quartz, silicon dioxide or sol, and mixtures thereof, For example, silicon dioxide, magnesium oxide, silicon dioxide, cone, silicon dioxide-titanium oxide, silicon dioxide-alumina, and silicon dioxide / silicon oxide-alumina-rhenium oxide. In a specific example, the matrix material is natural clay, such as those derived from montmorillonite and kaolin. These natural clays include sabbentonites and these known kaolin clays, such as Dixie, McNamee, Georgia and Florida clays. Non-limiting examples of other matrix materials include halosite, kaolinite, dickite, nacrite, or vermiculite. In a specific example, the base material, preferably any clay, is subjected to known improvements such as calcination and / or acid treatment and / or chemical treatment. In a preferred embodiment, the matrix material is a clay or clay type composition, preferably a clay or clay type composition with a low content of iron or titanium dioxide, and the most preferred matrix material is kaolin. Kaolin was found to form a pumpable, high solids slurry. Kaolin has a low fresh surface area ' and is easy to integrate into piles because of its slab structure. Matrix material (the most paper size applies the Chinese National Standard (CNS) A4 specification (21 OX 297 mm) -27-1231297 A7 ------ B7_ V. Description of the invention (25) is preferably kaolin) The average particle size is from about 0.1 # m to about 0.6 // m, and the D 9 0 particle size distribution is below about 1 // m. (Please read the precautions on the back before filling this page) In another specific example, the weight ratio of the adhesive to the matrix material used to form the molecular sieve composition is from 0: 1 to 1:15, preferably from 1:15 to 1: 5 'is more preferably from 1:10 to 1: 4, and most preferably from 1: 6 to 1: 5. It has been found that higher sieve content and lower matrix content will increase the effectiveness of the molecular sieve catalyst composition, and lower sieve content and higher matrix content will improve the wear resistance of the composition. In another specific example, the formulated molecular sieve catalyst composition comprises from about 1% to about 99%, more preferably from about 5% to about 90%, and most preferably from about 10% to about 80% by weight of molecular sieve is calculated based on the total weight of molecular sieve catalyst composition. In another specific example, the weight percentage of the adhesive in the spray-dried molecular sieve catalyst composition is calculated from the total weight of the adhesive, the molecular sieve and the matrix material, and is from about 2% to about 30% by weight. It is preferably from about 5% to about 20% by weight, and more preferably from about 7% to about 15% by weight. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Once the molecular sieve catalyst composition is formed in a substantially dry or dried state, in order to further harden and / or activate the formed catalyst composition, heat treatment, such as calcination, is usually used High temperature implementation. A conventional calcination environment is air, which typically includes a small amount of water vapor. In a preferred calcination environment such as air, nitrogen, ammonia, flue gas (combustion products in lean oxygen), or any combination thereof, typical calcination temperatures range from about 4 0 t to about 1.0 0 0 ° C, preferably from about 5 0 ° C to about this paper size Applies to Chinese National Standard (CNS) A4 (210X297 mm) -28-

[231297 V. Description of the invention (26) 800 ° C 'and most preferably from about 5500 ° C to about 700 ° C. • In the presence of the molecular sieve catalyst composition of the present invention, the method of converting raw materials, especially S with one or more oxygen-containing materials, is carried out by a reaction method in a reactor. The method is a fixed bed method, a fluidized bed method ( Including turbulent bed method), continuous fluidized bed method is preferred, and continuous high velocity fluidized bed method is most preferred. The reaction method can occur in various catalytic reactors, such as a mixed reactor, which has a tight or fixed bed reaction zone and / or a fast flowing bed reaction zone connected together, a circulating fluid bed reactor, a riser Reactors and the like. Suitable conventional reactor types are described, for example, in US 4,0 7 6, 7 9 6, US 6,287,522 (dual riser) and Fluidization Engineering, D. Kunii and 0. Levenspiel, Robert E. Krieger Publishing Company, New York, New York 1 977, all of which are incorporated herein by reference. The preferred reactor type is a riser reactor, which is generally described in Riser Reactor, Fluidization and Fluid-Particle Systems 'Pages 4 8 to 59' FA Zenz and DF Othomo, Reinhold Publishing Corporation, New York, 1960, and US 6,166,282 (fast fluid bed reactor) and US patent serial number 09 / 564,613 (multiple riser reactor) filed on May 4, 2000, all of which are incorporated herein Reference. In a preferred specific example, the fluid bed method or the high-speed fluid bed method is suitable for this paper. National Standard (CNS) A4 (210X297 mm) ^ clothing 11 (Please read the precautions on the back before filling in this Page) Order printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy -29- 1231297 A7 ______B7 V. Description of Invention (27) (Please read the precautions on the back before filling out this page) Including reactor system, regeneration system and recovery system. The reaction system is preferably a fluidized bed reactor system having a first reaction zone in one or more riser reactors and a second reaction zone in at least one separation vessel preferably including one or more cyclones. In a specific example, one or more riser reactors and separation vessels are contained in a single reactor vessel. Fresh raw materials 'which preferably contain one or more oxygen-containing substances, optionally one or more diluents' are fed into one or more riser reactors, wherein a zeolite or zeolite-type molecular sieve catalyst composition or its coke form is introduced . In a specific example, the molecular sieve catalyst composition or its coke form is contacted with a liquid or a gas or a combination thereof before being introduced into a riser reactor. Preferably, the liquid is water or methanol, and the gas is an inert gas. , Such as nitrogen. In a specific example, the content of fresh raw materials fed separately or in conjunction with gaseous raw materials to the reactor system ranges from 0.1% by weight to about 1,500 economic hours of Wisdom ^ employee consumption combined with fi printed 8 5 wt%, preferably from about 1 wt% to about 75 wt%, and more preferably from about 5 wt% to about 65 wt%, based on the total weight of the raw materials containing any diluent. The liquid and gas raw materials are preferably the same composition, or contain the same or different raw materials in different proportions, and the raw materials have the same or different diluents. The feedstock entering the reactor system is preferably partially or fully converted into a gaseous effluent in the first reactor area, which effluent enters the separation vessel along with the coked molecular sieve catalyst composition. In a preferred embodiment, the cyclone in the separation vessel is designed to separate the molecular sieve catalyst composition from the gaseous effluent containing one or more olefins in the separation zone, preferably a coke-based molecular sieve catalyst composition. . The cyclone is better, but the paper size in the separation container applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -30- 1231297 A7 B7 V. The gravity effect of the invention (28) will also flow from the gas effluent The catalyst composition was separated from the catalyst. Other methods of separating the catalyst composition from the gas effluent include the use of plates, caps, elbows, and the like. In a specific example of the separation system, the separation system includes a separation vessel, and typically the lower part of the separation vessel is a stripping zone. In the stripping zone, the coked molecular sieve catalyst composition is in contact with a gas, which is preferably a water vapor, methane, carbon dioxide, carbon monoxide / hydrogen or an inert gas such as argon, or a combination thereof, preferably water vapor In order to recover the adsorbed hydrocarbon from the coked molecular sieve catalyst composition, the composition is then introduced into a regeneration system. In another specific example, the stripping area is calculated from the volume of the coke-based molecular sieve catalyst composition by the gas volume of a separating valley device from the separation tank and the gas system. The gas surface velocity (GHSV) is from 1 hr-1 to about 20, 0000hr-1, preferably at high temperatures from 250 ° C to about 750. (:, Preferably from about 350 ° C to 650 t: through a coke-based molecular sieve catalyst composition. Conversion methods, especially in reactor systems, use a conversion temperature ranging from about 2 0 0 ° C to about 1, 0 0 0 t, preferably from about

2 5 0 ° C to about 8 0 0 ° C, more preferably from about 2 50 0 ° C to about 7 5 0 ° C 'better from about 3 0 0 ° C to about 6 5 0 ° C, more preferably About 3 5 0 ° C to about 6 0 0 ° C, preferably from about 3 5 0 ° C to about 5 5 0 t: The conversion method used, especially in reactor systems, does not matter. The conversion pressure is calculated based on the partial pressure of the raw material without any diluent. The conversion pressure used in the method is typically in the range of about 0.1 k Paa to about 5 MW Paa, preferably from about 5 kPaa to this paper size. The Chinese National Standard (CNS) A4 specification (210X29 * 7) Mm) (Please read the notes on the back before filling in this page)

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs of the 1T-31-1231297 A7 B7 V. Description of the invention (29) About 1 M P aa, and preferably from about 20 k P aa to about 500 k P aa 〇 In particular, a method for converting a raw material containing one or more oxygen-containing substances in the presence of a molecular sieve catalyst composition in a reaction zone. The weight space-time velocity (WHSV) is defined as the total weight of raw materials without any diluent in the reaction zone. Weight of the molecular sieve in the molecular sieve catalyst composition per hour in the reaction zone. W H S V is maintained in a sufficient amount to maintain the catalyst composition in a flowing state in the reactor. WHSV typically ranges from about 1 hr to 1 to about 50000h I · -1, preferably from about 2 h 1: to 1 to about 3 0 0 0 hr — 1, more preferably from about 5 hr to 1 to About 15 00 hr — 1, and preferably from about 10 hr — 1 to about 1000 0 hr — 1. In a specific example, W H S V is greater than 200 h r -1, and the W H S V of the raw material containing methanol and dimethyl ether is converted to a range from about 20 h r-1 to about 3 00 h r-1. The surface gas velocity (S G V) of the raw material containing the diluent and reaction products in the reactor system is preferably sufficient to flow the molecular sieve catalyst composition in the reaction area in the reactor. In the method, especially in the reactor system, more preferably in the riser reactor, the SGV in the method is at least 0.1 meters per second (m / sec), preferably greater than 0. 5 m / sec, more preferably greater than 1 m / sec, more preferably greater than 2 m / sec, more preferably greater than 3 m / sec, and most preferably greater than 4 m / sec. Reference is made to US Patent Application Serial No. 09 / 708,753 filed on January 8th, 200, which is incorporated herein by reference. In the use of silicoaluminophosphate molecular sieve catalyst composition to convert the cost of oxygen-containing materials in paper standards. National Standards (CNS) A4 specifications (210X297 mm> ---------- ^-(please first Read the notes on the back and fill in this page) Order printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -32- 1231297 A7 ——__— B7-丨 丨 -----—_ ________ V. Description of the invention (30) Olefins In a preferred embodiment of the method, the method is that the normalized A-house selectivity (TCNMS) of w H sv is at least 20 hri and the temperature is lower than 〇 〇 16, preferably lower than or 〇1 〇1 to operate. Refer to US 5,952,538, which is incorporated herein by reference. Another preferred specific method of using molecular sieve catalyst composition to convert oxygen-containing substances (such as methanol) to one or more olefins In the example, WH S ν is from 0.01 h Γ 1 to about 100 hr-1, at a temperature from about 3 50 C to 5 50 C and silicon monoxide to Me 2 03 (Me is the element Periodic Table II (Group II IA or VI Group II) Morse ratio from 300 to 2500. Refer to EP-0642485B1, which is incorporated herein by reference. Other methods of using molecular sieve catalyst compositions to convert oxygen-containing substances (such as methanol) into one or more olefins are described in PCT W 0 01/23500 published on April 5, 2001 (at average catalyst raw material exposure 値Propane is reduced at least 1: 0): it is incorporated herein by reference. According to a specific example, the conversion of the main oxygen-containing substance (such as methanol) is from 90% to 98% by weight. According to another specific example, Conversion of methanol is from 92% to 98% by weight, preferably from 94% to 98% by weight. According to another specific example, conversion of methanol is greater than 98% by weight to less than 100% by weight. According to another specific example, the conversion of methanol is from 98.1% by weight to less than 100% by weight, preferably from 98. 2% by weight to 99. 8% by weight. According to another specific example, Conversion of methanol to paper standards Applies Chinese National Standard (CNS) A4 specifications (21 〇 × 297 mm) (Please read the precautions on the back before filling out this page) Clothing · Order Printed by the Intellectual Property Bureau Staff Consumer Cooperatives -33 -1231297 A7 ____ B7 V. Description of the invention (31) From 9 8 · 2% by weight to less than 99 · 5% by weight, preferably from 98.2% by weight to 99% by weight. The process of converting oxygenates to olefins forms a significant amount of water as a by-product. Most of the water can be cooled by cooling The olefin stream from the oxygenate reactor is removed to a temperature below the condensation temperature of the water in the stream. Preferably, for the process of converting an oxygenate to an olefin, the temperature of the product stream is cooled to a temperature below the condensation temperature of the oxygenate feed. In a particular embodiment, it is desirable to cool the product stream below the condensation temperature of methanol. Quenching tubing is an equipment that is effective for cooling olefin streams from the oxygenate to olefin reaction process. In a quench column, the quench fluid is in direct contact with the olefin stream to cool the stream to the desired condensation temperature. Condensation produces concentrated water containing the stream, which also acts as a heavy bottom stream. The hydrocarbon portion of the olefin product stream is still steam and leaves the quench string as a vapor stream from the overhead. The overhead distillate vapor stream is rich in olefin products and may also contain some oxygenated hydrocarbon by-products and water. In a specific example, the quenched fluid is a recycle stream of a quenched string containing a heavy bottoms stream condensed by water. This aqueous stream is suitably cooled, for example by a heat exchanger, and injected back into the quenched string. In this specific example, it is preferred that the cooling medium is not injected into the quench string from an external source, although it may be desirable to do so downstream from other separation devices of the quench string. In a particular embodiment of the invention, the quenched olefin stream is further processed by compression, preferably multi-stage compression. Two, three, four or more stages can be used, with two or three stages being preferred. In another specific example of the present invention, the olefin stream is compressed to a pressure. The paper size applies to the Chinese National Standard (CNS) A4 specification (21〇 × 29 * 7 mm) (Please read the precautions on the back before filling this page ) Clothing · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-34-1231297 A7 B7 V. Description of the invention (32) The pressure is greater than the pressure for carrying out the reaction of oxygen-containing substances to olefins. Preferably, the olefin stream is compressed to a pressure of at least about 30 psig (207 kPa) ', more preferably at least about 50 psig (345 kPa), and most preferably at least about 100 psig (6.89 kPa). . The high pressure range is preferred, and the upper limit is a rule of thumb based on operational design and ease of cost. Actual high pressure limits are generally considered to be as high as about 5,000 P sig (34,45 kPa), with lower limits of about 1,000 psig (6,895 kPa), about 750 psia (5171 kPa), and about 500 psig (3 4 4 7 k P a) is the better. In a specific example of the present invention, the separation of acetaldehyde from the olefin stream occurs in the distillation column and the operating pressure of the column is maintained, so that the second part or the bottom of the column is at a relatively low temperature to limit Device blocked. The second part will contain most of the C 4 + olefin component; and in this specific example, it is preferred that the average temperature of the second part be no greater than about 300 ° F (149 ° C) , More preferably no more than about 2 7 5 ° F (1 3 5 ° C), and most preferably no more than about 2 5 0 (1 2 1 ° C). In the present invention, it is desirable to obtain high concentrations of ethylene and propylene from a dimethyl ether-containing olefin stream. In a specific example, dimethyl ether is separated from ethylene and propylene in an olefin stream. In this specific example, ethylene and propylene are recovered in the first part and dimethyl ether is recovered in the second part. Typically, the first portion will be the overhead or side portion of the distillation column, and the second portion will be the bottom portion or another side portion of the distillation column. In a specific example of the present invention, most of the paper standards in the provided olefin logistics apply the Chinese National Standard (CNS) A4 specification (210X297 mm). Do this-(Please read the precautions on the back before filling in this Page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-35-1231297 A7 B7 V. Description of the invention (33) Ethylene and propylene will be separated in the first part. Part of the dimethyl ether will be separated in the second part. Preferably, the first part will contain at least about 75% of the ethylene and propylene in the provided olefin stream, more preferably at least about 85%, and most preferably at least about 95%. In another specific example, at least about 75% of the dimethyl ether in the provided olefin stream will be separated in the second part. Preferably, at least about 85% of the dimethyl ether in the provided olefin stream, more preferably at least about 95%, and most preferably at least about 99%, will be separated in the second part . The invention is particularly advantageous for the acid gas treatment of the ethylene and propylene streams contained in the first part to remove acid gases such as CO2, which may also be present in the first part. The advantage is that the separated ethylene and propylene streams in the present invention will contain a relatively small amount of hydrocarbon components which cause blocking problems in this acid gas processing system. A solid or liquid acid gas processing system can be used in the present invention. In either system, the acid gas system is removed from the ethylene and / or propylene stream in the first part by contacting the first part with an acid gas absorbent or adsorbent. Examples of the absorbent or adsorbent include amines, potassium carbonate, caustic compounds, alumina, molecular sieves, and membranes, especially formed from polyethylene, polyimine, polyamine, transparent polymers, and cellulose acetate membrane. A solution containing an amine and a caustic compound is preferable, and a caustic compound is more preferable. The aqueous amine solution used in the present invention may contain any amine compound suitable for acid gas absorption. Examples include alkanolamines, such as triethanolamine (TEA). This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm). I -------- β Pack-(Please read the note on the back first Please fill in this page for more information) Printed by Qilang Yiyue, printed by Huishi Industry and Employees' Consumers Co., Ltd. -36-1231297 A7 B7 V. Description of the invention (34) Methyldiethanolamine (MDEA), diethanolamine (DEA), Monoethanolamine (M EA), diisopropanolamine (DIPA), and hydroxyaminoethyl ether (DGA). Effective concentrations can range from about 0-5 to about 8 moles per 1 liter of aqueous solution. Piperazine and / or monomethylethanolamine (MMEA) can be added to the aqueous amine solution to enhance its absorption capacity. These additives may be included in an aqueous solution at a concentration of from about 0.004 to about 2 moles per liter of aqueous solution. The caustic compounds useful in the present invention are basic compounds which are effective for removing acid gases from a hydrocarbon burning stream. Examples of this basic compound include sodium hydroxide and potassium hydroxide. After the acid gas treatment, it is desirable to wash with water to simultaneously remove the entrained material in the treated ethylene / propylene. Can be used with conventional equipment. However, it is desirable to further remove additional water from the separated ethylene and / or propylene stream. In a specific example of the present invention, the ethylene and propylene in the first part are washed with water, that is, in contact with the water stream before the acid gas treatment. This contact is particularly advantageous when the water absorbent is added to the oxygen-containing material separation vessel, and the water absorbent can continue to exist to the first or overhead distillate portion. Water scrubbing will be performed to remove most of the water absorbent carried in the acid gas treatment -JL- ·, / ·. The present invention further includes any specific examples of drying. In this specific example, a solid or liquid drying system can be used that has removed water and / or additional oxygenated hydrocarbons from the first section. In the solid drying system, the ethylene and / or propylene are connected to the solid adsorbent. The paper size applies to the Chinese National Standard (CNS) A4 (21 × 297 mm) (Please read the precautions on the back before filling in this page)

Printed by the Employees ’Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-37- 1231297 A7 _______B7__ V. Description of Invention (35) Touch to further remove water and oxygenated hydrocarbons to very low levels. The ethylene and / or propylene is Separated in portions, and optionally treated with acid gas and washed with water. Typically, the adsorption process is carried out on one or more fixed beds containing a suitable solid adsorbent. Adsorption is used to remove water and oxygenated hydrocarbons to very low concentrations, and to remove oxygenated hydrocarbons that would normally not be removed using other treatment systems. Preferably, the adsorption system as part of the present invention has multiple adsorbent beds. Multiple beds allow continuous separation without the need to stop the method to regenerate the solid adsorbent. For example, in a three-bed system, typically one bed is on-line, one bed is off-line regeneration, and the third bed is spare. The specific sorbent solids used in the sorbent bed depends on the type of contaminants removed. Examples of solid adsorbents for removing water and various polar organic compounds (such as oxygenated hydrocarbons and absorbent liquids) include alumina, silica, 3 A molecular sieves, 4 A molecular sieves, and aluminosilicates. Beds containing these screens or multiple beds with different adsorbent solids can be used to remove water and various oxygenated hydrocarbons. In the present invention, one or more adsorption beds may be arranged in series or in parallel. In one example of a tandem arrangement, the first bed is used to remove the smallest and most polar molecule, which is the most solution removed. A subsequent bed for removal of larger and less polar oxygenated species is in a second position in series. As a specific example of an arrangement, water was the first choice to be removed, using a 3 A molecular sieve. Following this bed is one or more beds containing one or more lower selectivity adsorbents, such as larger pore molecular sieves, such as 1 3 X, and / or high surface area activated alumina , Such as Selexord CD (Alcoa This paper size is applicable. National National Standard (CNS) A4 size (210X297 mm) (Please read the precautions on the back before filling in this page}

-38- 1231297 r In another specific example, the first bed has the ability to selectively remove multiple 1 3 X of water and methanol or operate it without using conventional methods (such as nitrogen). The effect of any liquid 0 0 m, and the best of which is about 5 wppm of dimethyl can be polymerized. Yes, polyethylene and methods can be used Zieg / Natta, 3 8, A7 B7 V. Description of the invention (36 ) tradename) 〇 3. 6 A molecular sieve. This bed is followed by a bed of activated or alumina, as described above. If desired, the sorbent bed can flow up or down at room temperature or at elevated temperatures. Regeneration of the sorbent material can be carried out, the method comprising treating with dry inert gas at high temperature. In liquid drying systems, water absorbents are used to remove water. Water absorbents can be used to remove water from a hydrocarbon stream. Preferably, the water absorbent is the same as previously described. Preferably, the olefin from the adsorption bed contains less than / about 1 w p p m of water, more preferably less than about 10 w p p and less than about 1 w p p m. Preferably, less than about 10 w ether is present in the stream leaving the adsorption bed, more preferably less than, and most preferably less than about 1 w p p m. The ethylene and propylene processed and separated according to the present invention to form a plastic composition, such as polyolefins, especially polypropylene. For any habit of forming polyethylene or polypropylene. Catalytic methods are preferred. Particularly preferred are metallocene, chromium trioxide, and acid catalyst systems. References, for example, US 3,258,455 + 3,305,5 3,3 64,190, 5,892, 〇79, 4,659,685, 4,076,698, This paper standard applies Chinese national standards ( CNS) A4 size (210X297 male thin) (Please read the precautions on the back before filling this page)

-39-

I 1231297 Α7 Β7 V. Description of the invention (37) 3,645,992, 4,302,565, and 4,2 4 3,6 9 1, each catalyst and method description is expressly incorporated herein. Reference. Generally, these methods involve contacting an ethylene or propylene product with a polyolefin-forming catalyst at an effective pressure and temperature to form a polyolefin product. In a specific example of the present invention, ethylene or propylene is contacted with a metallocene catalyst to form a polyolefin. Desirably, the method of forming a polyolefin is carried out at a temperature ranging from about 50 ° C to about 320 ° C. The reaction can be carried out at any low, medium or high pressure ranging from about 1 b a r to about 3 2 0 0 b a r. For carrying out the method in solution, an inert diluent can be used. In this type of operation, it is desirable that the pressure range is from about 10 b a r to about 150 b a r, and a preferred temperature range is from about 120 ° C to about 250 ° C. For gas phase processes, it is preferred that the temperature is usually in the range of about 60 ° C to 120 ° C and the operating pressure is from about 5 to 50 bar. In addition to polyolefins, many other olefin derivatives It can be formed from the ethylene, propylene, and C 4 + olefins, especially butene, separated according to the present invention. The olefins isolated according to the present invention can be used to make such compounds, for example, aldehydes, acids such as C 2 -C i 3 monocarboxylic acids, alcohols such as c 2-C! 2 monoalcohols, from C 2- Esters, linear olefins, vinyl acetate, ethylene dichloride and ethylene chloride, ethylbenzene, ethylene oxide, cumene made from C i 3 monocarboxylic acids and C 2-C i 2 monoalcohols , Acrolein, allyl chloride, propylene oxide, acrylic acid, ethylene-propylene rubber and acrylonitrile, and terpolymers and dimers of ethylene and propylene. C 4 + olefins, especially butene, are particularly suitable for this paper size. National National Standard (CNS) A4 specification (21 × 29 * 7 mm) (Please read the precautions on the back before filling this page)- Pack-order -40-1231297 A7 ______B7_ V. Description of the invention (38) It is suitable to produce aldehydes, acids, alcohols, esters made from C 5-C i 3 monocarboxylic acids and C 5 -ci 3 monoalcohols And linear alpha olefins. An example of separating acetaldehyde and C 4 + streams from ethylene and / or propylene and processing ethylene and / or propylene is shown in the figure. This example is just one way to provide an ethylene and propylene stream with substantially acetaldehyde, water, and C 4 + olefins removed. However, a common factor of the present invention is the substantial removal of acetaldehyde and c4 + olefins from a stream containing ethylene and / or propylene before the acid gas treatment. This means that after the removal of acetaldehyde and C4 + olefins, both ethylene and propylene can be recovered in the overhead stream, or that propylene can also react with acetaldehyde and C 4. + Olefins in the bottom stream. Removed together. When ethylene and propylene are recovered together in the overhead distillate stream, the components can be processed, for example, caustic scrubbing treatment, together or separated and treated separately 'Figure 1 shows a specific example, in which the Olefins are prepared in a conversion system of oxygenates to olefins. In the figure, methanol is transported to the reactor 12 that converts oxygen-containing substances into olefins via a conveying pipe 10 ', where the methanol is converted into a mixture containing A, B, C, C, C, and A. Olefin streams of ether, C 4 + components, water and other hydrocarbon components. The olefin stream is transported to a quench tower 16 via a transfer pipe 14 where the olefin is cooled and water and other condensable components are condensed. The condensed component containing a considerable amount of water is extracted from the quench tower 16 via a bottom pipe 18. A part of the condensed component is circulated back to the top of the quench tower 16 via the transfer pipe 20. The transfer pipe 20 contains a cooling unit 'such as an exchanger (not shown) to further cool the condensed components' in order to provide a cooling medium to further cool the components in the quench tower 16. This paper size applies Chinese National Standard (CNS) A4 specification (21〇 > < 297 mm) (Please read the precautions on the back before filling out this page) -41-1231297 A7 B7 V. Description of the invention (39) The olefin vapor leaves the top of the quench tower 16 through the transfer pipe 18. The olefin vapor is compressed in the compressor 2 4 and the compressed olefin is sent to the distillation column 2 8 through the transfer pipe (please read the precautions on the back before filling this page) 2 6. Methanol is fed to the top of the distillation column 28, which acts as an extractant to extract acetaldehyde and C 4 + olefins. Acetaldehyde, C 4 + olefins, and methanol extractants leave the distillation tube column 28 through the bottom delivery tube 30. A part of the material in the bottom pipe 30 is recycled to the distillation column 28 via the pipe 32. The transfer pipe 32 contains a heating system, such as a heat exchanger (not shown), which provides heat to the distillation column 28. The olefin vapor containing methane, ethylene, propylene, and other low-boiling substances is passed through the conveying pipe 34 to open the extraction distillation column 28, and is sent to the caustic washing column 36. The caustic solution is sent to the top of the caustic scrubbing column 36 through the delivery pipe 38 to remove CO2, which is also brought by the olefin vapor. The used caustic solution leaves the caustic scrubbing column 36 through the pipe 40. The printed olefin vapor which has been processed in the caustic scrubbing column 36 is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs and exits through the pipe 4 2 And is sent to a dryer system 44, such as an adsorbent system. The dryer system 44 removes a significant portion of the water and oxygenated hydrocarbons that remain in the treated olefin vapor stream. The dried olefin vapor stream is then transferred to a separator 48 via a transfer pipe 46, such as a distillation column, a methane and a low boiling point component are separated via a transfer pipe 50, a Bulcan is separated via a transfer pipe 50, and a transfer pipe 5 4 Separation of propylene. Now that the present invention has been fully described, those skilled in the art will understand that the present invention can be implemented within a wide range of parameters within the scope of the patent application, without departing from the spirit and scope of the present invention. This paper size applies to China National Standard (CNS) A4 (210X297 mm) -49-

Claims (1)

1231297 A8 B8 C8 D8 2 Patent application scope Alcohol 0 (Please read the notes on the back before filling this page) 9. For the method of applying for the scope of the first item of the patent scope, the first part includes at least 50% in the olefin logistics And the second part includes at least 50% of the propylene present in the olefin stream. 10. The process according to item 1 of the patent application, wherein the first part includes at least 50% of the ethylene and propylene present in the olefin stream. 1 1 · The method according to item 1 of the scope of patent application, wherein the second part includes at least 1, 0 0 ◦ w p p m acetaldehyde. 12. The method of claim 1 in the scope of patent application, wherein the olefin stream provided additionally comprises propane, and the first part includes at least 50% of the ethylene, propylene and propane present in the olefin stream. 1 3 · The method according to item 1 of the patent application scope, wherein the olefin stream provided additionally contains propane, the first part includes at least 50% of ethylene and propylene present in the olefin stream, and the second part additionally includes existing in At least 50% of propane in the olefin stream. 1 4 · A method for purifying a stream containing ethylene and / or propylene produced from an oxygen-containing substance to an olefin, comprising: printing by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs to contact the oxygen-containing substance with a molecular sieve catalyst to Forming an olefins stream containing ethylene, propylene, and acetaldehyde; separating the olefin stream into a first part and a second part, where the first part includes at least 50% of the ethylene and / or propylene present in the olefin stream, and the first The second part includes at least 50% of the acetaldehyde present in the olefin stream; and the first part is treated to remove acid gases therefrom. 15. The method according to item 14 of the scope of patent application, in which the olefins-44-M scale is applied to the Chinese National Standard (CNS) A4 specification (210X297 mm) 1231297 A8 B8 C8 _ One D8 6. Application scope The 3 stream additionally includes CO2, and the first part additionally contains at least 50% of CO2 in the provided olefin stream. (Please read the precautions on the back of the threat before filling in this education.) 1 6 · If the method of patent application No. 15 is used, the step of processing the first part to remove the acid gas from it includes making the first part and caustic Agent contact. 17 · The method according to item 14 of the scope of patent application, wherein the olefin stream additionally includes C 4 + olefins, and the second part additionally includes at least 5% by weight c 4 + olefins, calculated based on the total weight of the second part . 1 8. The method according to item 4 of the patent application, wherein the olefin stream is separated by distillation. 19 · The method according to item 18 of the patent application scope, wherein the distillation is extractive distillation using an extractant. 2 0 _ The method according to item 19 of the scope of patent application, wherein the extractant is a polar composition having an average boiling point of at least 3 8 t at 1 a t m. 2 1 · The method according to item 20 of the patent application scope, wherein the extractant is methanol. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 2 · If the method of the scope of patent application No. 14 is applied, the first part includes at least 50% of the ethylene present in the olefin stream, and the second part includes the olefin At least 50% propylene in the stream. 2 3 · The method according to item 14 of the patent application, wherein the first part includes at least 50% of the ethylene and propylene present in the olefin stream. 24. The method according to item 14 of the scope of patent application, wherein the second part comprises at least 1,000 w P P m of acetaldehyde. 2 5 · If the method of item No. 14 of the scope of patent application, the paper size of the olefin is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -45-1231297 A8 B8 C8 D8 Contains propane, and the first part includes at least 50% of the ethylene, propylene, and propane present in the olefin stream. (Please read the notes on the back before filling out this page) 2 6. If the method of patent application No. 14 is applied, the olefin stream additionally contains propane, and the first part includes at least 50% of the ethylene and Propylene, while the second part includes at least 50% of the propane present in the olefin stream. 2 7. A method for purifying an ethylene-containing stream, comprising: providing an olefin stream containing ethylene, propylene, C 4 + olefins and acetaldehyde; separating the olefin stream into a first part and a second part, The first part includes at least 50% of the ethylene present in the hydrocarbon burning stream, and the second part includes at least 50% of the propylene, C 4 + olefins, and acetaldehyde present in the olefin stream; and the first part of the process To remove the acid gas therefrom. 28. The method according to item 27 of the scope of the patent application, wherein the olefin stream provided additionally includes CO 2 and the first part additionally contains at least 50% of CO 2 in the provided olefin stream. Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 9 · If the method of the scope of patent application No. 28, the step of processing the first part to remove the acid gas therefrom includes contacting the first part with a caustic agent. 30. The method of claim 29, wherein the olefin stream is separated by distillation. 31. The method of claim 30, wherein the distillation is extractive distillation using an extractant. This paper size applies to China National Standard (CNS) A4 (210X297 mm) -46-1231297 A8 B8 C8 D8 VI. Application scope of patent 5 3 2 · If the method of item 31 of the scope of patent application, the extractant is in A polar composition having an average boiling point of at least 3 8 t at 1 atm. (Please read the precautions on the reverse side before filling out this page) 3 3 · If the method in the scope of patent application No. 32, the extraction agent is methanol. 34. The method of claim 27, wherein the ethylene in the first part is polymerized to form polyethylene. 3 5 · A method for purifying a stream containing ethylene and propylene, comprising: providing an olefin stream containing ethylene, propylene, C 4 + olefins and acetaldehyde; separating the olefin stream into a first part and a second part The first part includes at least 50% of ethylene and propylene present in the olefin stream, and the second part includes at least 50% of C 4 + olefins and acetaldehyde present in the olefin stream; and the first treatment Partly to remove acid gas from it. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 3 6 · If the method of applying for the scope of the patent No. 35, the olefin logistics provided additionally includes CO2, and the first part is also included in the provided olefin logistics At least 50% of CO2. 37. The method of claim 36, wherein the step of treating the first part to remove acid gas therefrom includes contacting the first part with a caustic. 38. The method of claim 35, wherein the olefin stream is separated by distillation. 3 9 · If the method of the 38th item of the patent application scope, in which the distillation is based on the Chinese paper standard (CNS) A4 (210 X mm) 1231297 A8 B8 C8 D8 6. The scope of the patent application 6 Use of extractant Extraction distillation. 40. The method of claim 39, wherein the extractant is a polar composition having an average boiling point of at least 38 ° C at 1 atm. 4 1 · The method according to item 40 of the patent application, wherein the extractant is methanol. 42. The method of claim 35, wherein the ethylene and propylene in the first part are separated before or after the treatment step to remove the acid gas, and polymerized to form polyethylene and polypropylene. 43. The method according to item 35 of the scope of patent application, wherein the second part comprises at least 1,000 w p p m of acetaldehyde. 4 4. The method according to item 35 of the scope of patent application, wherein the olefin stream provided additionally contains C-propanes 'and the first part' additionally includes at least 50% of propane present in the hydrocarbon-fired stream. 45. The method of claim 35, wherein the olefin stream provided additionally contains propane, and the second part additionally includes at least 50% of the propane present in the olefin stream. (Please read the precautions on the back before filling out this page) Printed by the Consumers' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The paper size is applicable to China National Standard (CNS) A4 (210X297 mm) -48 Attachment 2 · Chinese Specification No. 91118427 Patent Application No. 1231297 (including the scope of the patent application 怃 underlined to replace the Republic of China on April 26th, 2010. Application is being made on August 15, 91st. No. 91118427 Category (the above are to be completed by the Bureau) Note) A4 C4 Cloud | Patent Specification Invention I. New Chinese name Method for removing gaseous pollutants from olefins stream English Method of removing exygenate contaminants from an olefin stream Name (1) (2) Tumus Lat Lattner, James Richardson, Big Continuation Road [umgair,] r ·, David R. Invention 2 I. Creative Nationality (1) (1) United States (2) United States, United States, Texas, Brookbrook, Connwood, No. 4147 Crovnvood, Seabrook, TX 77586, ILS./U Residence, domicile (2) 33040 Boston Road, Craddock, Virginia, USA 33040 Boston Rd., Craddockvilie, VA 23341, USA Name (Name ) (1) ExxonMobil Chemical Patents Inc »Nationality (1) United States (1) No. 5200, Gulf Avenue, Gulftown, Texas, United States Applicant's residence and residence (office) 5200 Bayvay Drive, Baytovn, TX 77520, Participant's Name (1) Tyrell Tyrus., Darryl • Alignment This paper size applies to Chinese National Standard (CNS) A4 Specifications (210X297 mm) Hold 1231297 VI. Scope of patent application 1 1. A method for purifying a stream containing ethylene and / or propylene, which includes providing an olefin containing ethylene, propylene, C 4 + olefins and acetaldehyde (please read the note on the back first) (Please fill in this page again) to separate the olefins stream into the first and second parts, where the first part includes at least 50% of the ethylene and / or propylene present in the olefin stream, and the second part includes At least 50% of the C4 + olefins and acetaldehyde present in the olefin stream; and treating the first part to remove acid gases therefrom. 2. The method of claim 1 in which the olefin stream provided additionally includes CO2, and the first part additionally contains at least 50% of CO2 in the provided olefin stream. 3. The method according to item 2 of the patent application, wherein the step of processing the first part to remove the acid gas therefrom includes contacting the first part with a caustic agent. 4. The method according to item 1 of the patent application scope, wherein the second part includes at least 5% by weight of C 4 + olefins, calculated based on the total weight of the second part. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5 • For the method in the first scope of the patent application, the olefin stream is separated by distillation. 6. The method of claim 5 in which the distillation is extractive distillation using an extractant. 7. The method according to item 6 of the patent application scope, wherein the extractant is a polar composition having an average boiling point of at least 38 ° C at 1 atm. 8. The method according to item 7 of the scope of patent application, in which the extraction agent is a paper size that is applicable to the Chinese National Standard (CNS) A4 (210X297 mm)