WO2005083040A1 - 高オクタン価ガソリン基材の製造方法 - Google Patents
高オクタン価ガソリン基材の製造方法 Download PDFInfo
- Publication number
- WO2005083040A1 WO2005083040A1 PCT/JP2005/003836 JP2005003836W WO2005083040A1 WO 2005083040 A1 WO2005083040 A1 WO 2005083040A1 JP 2005003836 W JP2005003836 W JP 2005003836W WO 2005083040 A1 WO2005083040 A1 WO 2005083040A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- carbon atoms
- aromatics
- content
- zeolite
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G35/00—Reforming naphtha
- C10G35/04—Catalytic reforming
- C10G35/06—Catalytic reforming characterised by the catalyst used
- C10G35/095—Catalytic reforming characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G35/00—Reforming naphtha
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/02—Gasoline
Definitions
- the present invention provides a high-Ottan gasoline base material in high yield from paraffin and Z or olefin having mainly 4 or 5 carbon atoms by-produced from a catalytic cracking unit or a thermal cracking unit.
- the present invention relates to a method for stably producing over a long period of time.
- catalytic reforming of straight-run naphtha with a platinum / alumina catalyst has been widely adopted as a method for obtaining gasoline with a high octane number.
- the raw material naphtha in the catalytic reforming has a boiling point of 70 to 180 mainly for the purpose of producing automobile gasoline.
- the fraction of C is an aromatic fraction such as xylene or so-called BTX production
- a fraction at 60 to 150 ° C is used.
- the octane number of the product decreases, such as the conversion ratio to aromatics decreases with the decrease in the number of carbon atoms.
- hydrocarbons with less than 6 carbon atoms paraffins and / or olefins
- a method of contacting with a crystalline silicate, particularly a crystalline aluminosilicate having an MFI type structure and a crystalline metallosilicate is known.
- a crystalline silicate particularly a crystalline aluminosilicate having an MFI type structure and a crystalline metallosilicate
- a fired product of gallium silicate is exchanged with ammonia, and the calcined product is used as a catalyst to aromatize n-butane and propane, respectively.
- light hydrocarbons having 2 to 7 carbon atoms can be converted to S i ⁇ under conditions of a temperature of 350 to 650 ° C and a hydrogen partial pressure of 490 kPa (5 kg / cm 2 ) or less.
- a 10 4 and G a 0 4 tetrahedra by the method for producing high-octane gasoline components by contacting with a crystalline Al amino Gallo silicate skeleton is formed is shown.
- Patent Document 1 JP-A-59-98020
- Patent Document 2 JP-A-62-254847
- the present invention relates to a method for producing a high octane gasoline base material using light hydrocarbons as a raw material. To provide a production method in which the concentration of benzene contained in the gasoline fraction is low and the concentration of the aromatic distillate fraction is high, and at the same time, a method that provides a much more stable catalyst life than before. To provide.
- the present inventors have conducted intensive studies to solve the above problems, and as a result, contacting a fraction containing mainly hydrocarbons having 4 and Z or 5 or 5 carbon atoms with a zeolite catalyst under appropriate reaction conditions.
- gasoline fractions with high octane number, low benzene concentration, high octane number, and high C8 aromatic yield which are important as petrochemical raw materials, can be produced at high yields over a long period of time. They have found a production method that can be obtained stably.
- a hydrocarbon mixture containing 50% by weight or more of a hydrocarbon having 4 or Z carbon atoms or 5 or more carbon atoms is brought into contact with a zeolite catalyst, and a generated fraction having 5 or more carbon atoms is produced.
- Aromatic content 10 to 90% by weight
- the fraction with a carbon number of 5 or more that has been reformed under the reaction conditions described above has a research octane number of 95 or more and a yield of 60% by weight or more based on the hydrocarbon mixture as the raw material. And a method for producing a high-octane gasoline base material.
- the present invention will be described in detail.
- the hydrocarbon mixture used as a feedstock is a hydrocarbon containing 4 or 5 carbon atoms or 5 or 5 carbon atoms in a proportion of 50% by weight or more, preferably 70% by weight or more, and more preferably 90% by weight or more. The above is included.
- the amount of hydrocarbons having 4 and / or 5 carbon atoms is less than 50% by weight, the proportion of aromatic fractions having a high octane number such as C8 aromatics is reduced, and thus the gasoline fraction produced This is not preferred because the octane number of the compound decreases.
- the starting hydrocarbon mixture used in the present invention preferably contains 90% by weight or more of a hydrocarbon having 2 to 7 carbon atoms, preferably a hydrocarbon having 3 to 6 carbon atoms. If this content is less than 90% by weight, T / JP2005 / 003836 The yield of gasoline fractions with 5 or more carbon atoms may be low.
- the total content of paraffins in the raw hydrocarbon mixture is preferably 70% by weight or less, and more preferably 60% by weight or less. If the total content of paraffins exceeds 70% by weight, the yield of carbon products having 5 or more carbon atoms in the product may be reduced due to a decrease in reactivity.
- Such a raw hydrocarbon mixture is obtained, for example, from a catalytic cracking device or a thermal cracking device.
- the reforming technology of the present invention aims at producing a high octane gasoline base material in which polymerized olefins and aromatics coexist, among a series of reactions for producing aromatics through dehydrogenation and polymerization.
- the raw material oil contains a large amount of substances having 4 and Z or 5 carbon atoms
- the number of carbon atoms formed by the polymerization reaction is 8 to 10 carbon atoms and the number of carbon atoms converted by the cyclodehydrogenation.
- the generation of 8 to 10 aromatics, and the simultaneous dealkylation and transalkylation reaction of the generated aromatics reduce the amount of benzene and enable the product to contain a large amount of C8 aromatics It becomes.
- the zeolite catalyst used in the reforming reaction in the method of the present invention is composed of zeolite and a binder.
- the binder is a substance for improving the mechanical properties (strength, abrasion resistance, moldability) of the catalyst, and examples thereof include inorganic oxides such as alumina, silica, aluminaboria, and silica-alumina.
- the addition amount is 10 to 70% by weight in the catalyst component. Further, for the purpose of further improving the mechanical strength of the molded product, it is preferable to further add phosphorus to these inorganic binders.
- Zeolite which is the main active component of the catalyst used in the present invention, has an MFI-type structure, which is a medium pore zeolite that allows the aromatic hydrocarbons of the product to enter and exit the pores relatively freely. desirable.
- MFI-type structure which is a medium pore zeolite that allows the aromatic hydrocarbons of the product to enter and exit the pores relatively freely.
- Specific examples of the zeolite having the MFI type structure include crystalline ZSM-5 or ZSM-5 type meta-silicates.
- the method for synthesizing ZSM-5 is disclosed in U.S. Pat. Nos. 3,702,888 and 3,756,964.
- the ratio of silica to alumina contained in the skeletal structure is preferably in the range of 50 to 400, more preferably in the range of 60 to 300. If the ratio of silica to alumina is less than 50, the amount of acid is too large, so that the liquid yield decreases and the deterioration rate increases. On the other hand, if the ratio of silica to alumina is greater than 400, the octane number of the produced gasoline is undesirably low because the amount of acid is small.
- ZSM-5 type metallosilicate is based on the synthesis method of ZSM-5, and can be prepared by adding a nitrate or a sulfate of a skeleton constituent element as a raw material.
- the zeolite having the MFI type structure preferably contains one or more metals selected from gallium, zinc, iron, platinum, boron, vanadium, nickel and cobalt.
- gallium and Z or zinc are contained.
- the amount of each metal is desirably 0.1 to 10.0% by weight based on the zeolite.
- the metal can be contained in the zeolite by a known method such as an ion exchange method, an impregnation method, and an incipient wetness method, but preferably, the metal is preferably prepared so that the zeolite skeleton contains the metal. .
- the method for producing a high octane number gasoline base material of the present invention comprises: contacting a hydrocarbon mixture containing 50% by weight or more of a hydrocarbon having 4 and Z or 5 or more carbon atoms with a zeolite catalyst; 5 or more fractions
- Aromatic content 10 to 90% by weight
- the octane number is 95 or more, and the yield is 60% by weight based on the starting hydrocarbon mixture.
- the generated fraction having 5 or more carbon atoms is reformed under the reaction conditions having the above-mentioned properties (1) to (4).
- the substrate can be produced in a high yield of 60% by weight or more, which was not available in the prior art.
- the content of the olefins having 5 or more carbon atoms of the generated fraction having 5 or more carbon atoms must be 5 to 90% by weight in order to maintain a high octane number of the research method. Further, the content of the aromatic compound should be 10 to 90% by weight, and preferably 20 to 80% by weight, in order to keep the yield of the gasoline fraction having 5 or more carbon atoms high. It is. In the present invention, production of a high octane gasoline base material is achieved through the following reaction steps.
- the dehydrogenation of saturated hydrocarbons occurs first, followed by the polymerization of unsaturated hydrocarbons, and subsequently, the continuous decomposition of heavy components.
- the formation of olefins with a broad carbon number distribution is followed by the cyclodehydrogenation of aromatic hydrocarbons. If the reaction temperature is too low: Not enough energy is available to break the C-H bond in the raw hydrocarbon mixture, resulting in a lower conversion of the raw hydrocarbon mixture, resulting in a lower gasoline yield.
- the octane number will be low due to the low aromatics and the absence of aromatics in the product.
- reaction temperature is too high, most of the gasoline fraction in the product will be aromatic, but unnecessary light components such as methane and ethane will be generated in large quantities by the dealkylation reaction and the overcracking reaction.
- the gasoline fraction yield will be reduced.
- Cyclodehydrogenation is an endothermic reaction, and higher temperatures generally favor the generation of aromatics having a higher octane number than non-aromatics, but the higher the number of hydrocarbons, the more dehydrocyclization to aromatics
- the reaction rate is high (for example, Proceedings of fifth world petroleum congress, section III, Paper 4 (1959), HG Krane), so it is better to keep the temperature as low as possible in the temperature range where thermodynamic constraints are not so large.
- the reaction temperature in the conversion of the raw hydrocarbon mixture is preferably from 250 to 500 ° C, more preferably from 300 to 500 ° C (more preferably, from 350 to 5 ° C). If the reaction temperature is lower than 250 ° C., the octane number of the gasoline fraction produced as the proportion of aromatics decreases becomes lower, and the reaction temperature becomes lower than 500 ° C. Exceeding this is not preferred because the yield of gasoline fractions with 5 or more carbon atoms will decrease.
- a high-yield, high-octane gasoline base material can be obtained even under atmospheric pressure, so that high pressure is not particularly required.
- a hydrogen partial pressure suitable for the reaction is obtained without adding hydrogen.
- intentional addition of hydrogen has the advantage of suppressing coke deposition and reducing the frequency of catalyst regeneration, the yield of high octane gasoline is not necessarily advantageous because the increase in hydrogen partial pressure reduces it. I can't say. Therefore, it is desirable to keep the hydrogen partial pressure below IMPa.
- Recycling the light gas mainly composed of methane and Z or ethane recovered from the reaction product together with a new hydrocarbon feedstock to the reaction suppresses coke deposition on the catalyst and reduces the aromaticity over a long period of time. It is preferably employed because the yield of hydrocarbons can be kept high.
- any form of fixed bed, moving bed or fluidized bed can be used.
- Reactant flow amount in the case of solid Teiyuka, 1 0-1 0 GHSV (gas hourly space velocity), 0 0 O h - 1, preferably 5 0 to 5, 0 0 0 h _ ⁇ more preferably 1 0 0 22, 0 0 0 h— 1 .
- GHSV gas hourly space velocity
- the contact time may be considered to be the same as that of the fixed bed.
- the gasoline fraction having 5 or more carbon atoms produced in this way has a high research-method Ottatan number, and also has a large distillation property, and is not different from commercially available gasoline. However, it can be blended without losing the octane number.
- this step a step based on the production method of the present invention (hereinafter, referred to as “this step”) at the latter stage of the catalytic cracking apparatus, the gasoline fraction obtained from this step was obtained from the catalytic cracking apparatus.
- the octane number can be increased with respect to the gasoline fraction, and benzene in gasoline blended with both can be kept at 1% by weight or less.
- the C4 and Z or C5 fractions generated from the catalytic cracking unit in this process are converted to higher boiling gasoline fractions. It also has the effect of reducing pressure.
- Aluminosilicate (ZSM-5) was prepared by the following method.
- a solution of sodium silicate (177 g) in water (221 g) and an adjusted amount of aluminum sulfate to achieve the desired Cayban ratio (13.5 g, 5.9 g, 1.8 g, 1 g .2 g), 22 g of tetrapropylammonium bromide, 15 g of sulfuric acid, 66 g of sodium chloride and 302 g of water were prepared. These solutions were gradually mixed at room temperature, and the mixture was stirred with a mixer for 5 minutes. Then, the mixture was placed in a 1-liter titanium beaker, attached to an autoclave, and heated to a temperature of 180 ° C and a rotation speed of 10 ° C. Stirred at 0 rpm for 48 hours under self-pressure.
- Aluminogallosilicate containing aluminum and gallium in the skeleton was prepared by the following method.
- a conversion reaction was carried out in a flow-through reactor using a mixture of the hydrocarbons shown in Table 1 diluted with an equimolar amount of nitrogen in the absence of hydrogen as a raw material. .
- the reactor was adjusted to a predetermined reaction temperature, and the reactants were introduced into the reactor at a pressure of 1 atm. Table 1 shows the reaction conditions and the reaction results.
- Isobutene (% by weight) 100 100 0 0 100 100
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Crystallography & Structural Chemistry (AREA)
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- General Chemical & Material Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05720108A EP1721953A4 (en) | 2004-03-02 | 2005-03-01 | METHOD FOR MANUFACTURING HIGH OCTANE INDEX BASE GASOLINE |
US11/469,045 US20070066858A1 (en) | 2004-03-02 | 2006-08-31 | Process For Producing High-Octane Gasoline Blending Stock |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004057820A JP2005247932A (ja) | 2004-03-02 | 2004-03-02 | 高オクタン価ガソリン基材の製造方法 |
JP2004-057820 | 2004-03-02 | ||
JP2004319605A JP4621000B2 (ja) | 2004-11-02 | 2004-11-02 | 高オクタン価ガソリン基材の製造方法 |
JP2004-319605 | 2004-11-02 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/469,045 Continuation US20070066858A1 (en) | 2004-03-02 | 2006-08-31 | Process For Producing High-Octane Gasoline Blending Stock |
Publications (1)
Publication Number | Publication Date |
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WO2005083040A1 true WO2005083040A1 (ja) | 2005-09-09 |
Family
ID=34914490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/003836 WO2005083040A1 (ja) | 2004-03-02 | 2005-03-01 | 高オクタン価ガソリン基材の製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070066858A1 (ja) |
EP (1) | EP1721953A4 (ja) |
KR (1) | KR20060131872A (ja) |
WO (1) | WO2005083040A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20100018901A1 (en) * | 2008-07-24 | 2010-01-28 | Krupa Steven L | Process and apparatus for producing a reformate by introducing methane |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60501357A (ja) * | 1983-03-29 | 1985-08-22 | ザ ブリテイツシユ ペトロリユ−ム コムパニ− ピ−エルシ− | スチーム変性結晶性ガロアルミノシリケート、その製造方法及びスチーム変性結晶性ガロアルミノシリケートからなる触媒 |
JPS62254847A (ja) * | 1986-01-09 | 1987-11-06 | Res Assoc Util Of Light Oil | 高オクタン価ガソリン基材の製造方法 |
JPS6314734A (ja) * | 1986-07-08 | 1988-01-21 | Res Assoc Util Of Light Oil | 芳香族炭化水素の製法 |
JPH05194964A (ja) * | 1991-08-20 | 1993-08-03 | Res Assoc Util Of Light Oil | 高オクタン価ガソリン基材の製造方法 |
JPH10500146A (ja) * | 1993-03-08 | 1998-01-06 | モービル・オイル・コーポレイション | より低いベンゼン含有量および蒸留終点を有するガソリンの製造方法 |
JP2001062305A (ja) * | 1999-06-24 | 2001-03-13 | Eni Spa | 炭化水素の芳香族化用触媒組成物 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4032432A (en) * | 1975-08-28 | 1977-06-28 | Mobil Oil Corporation | Conversions of hydrocarbons |
US5095159A (en) * | 1990-11-21 | 1992-03-10 | Mobil Oil Corporation | Ether and hydrocarbon production |
US6153089A (en) * | 1999-03-29 | 2000-11-28 | Indian Oil Corporation Limited | Upgradation of undesirable olefinic liquid hydrocarbon streams |
-
2005
- 2005-03-01 WO PCT/JP2005/003836 patent/WO2005083040A1/ja active Application Filing
- 2005-03-01 KR KR1020067017784A patent/KR20060131872A/ko not_active Application Discontinuation
- 2005-03-01 EP EP05720108A patent/EP1721953A4/en not_active Withdrawn
-
2006
- 2006-08-31 US US11/469,045 patent/US20070066858A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60501357A (ja) * | 1983-03-29 | 1985-08-22 | ザ ブリテイツシユ ペトロリユ−ム コムパニ− ピ−エルシ− | スチーム変性結晶性ガロアルミノシリケート、その製造方法及びスチーム変性結晶性ガロアルミノシリケートからなる触媒 |
JPS62254847A (ja) * | 1986-01-09 | 1987-11-06 | Res Assoc Util Of Light Oil | 高オクタン価ガソリン基材の製造方法 |
JPS6314734A (ja) * | 1986-07-08 | 1988-01-21 | Res Assoc Util Of Light Oil | 芳香族炭化水素の製法 |
JPH05194964A (ja) * | 1991-08-20 | 1993-08-03 | Res Assoc Util Of Light Oil | 高オクタン価ガソリン基材の製造方法 |
JPH10500146A (ja) * | 1993-03-08 | 1998-01-06 | モービル・オイル・コーポレイション | より低いベンゼン含有量および蒸留終点を有するガソリンの製造方法 |
JP2001062305A (ja) * | 1999-06-24 | 2001-03-13 | Eni Spa | 炭化水素の芳香族化用触媒組成物 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1721953A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1721953A1 (en) | 2006-11-15 |
US20070066858A1 (en) | 2007-03-22 |
EP1721953A4 (en) | 2009-10-28 |
KR20060131872A (ko) | 2006-12-20 |
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