WO2012113268A1 - 生产乙二醇的方法 - Google Patents
生产乙二醇的方法 Download PDFInfo
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- WO2012113268A1 WO2012113268A1 PCT/CN2012/000237 CN2012000237W WO2012113268A1 WO 2012113268 A1 WO2012113268 A1 WO 2012113268A1 CN 2012000237 W CN2012000237 W CN 2012000237W WO 2012113268 A1 WO2012113268 A1 WO 2012113268A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat exchange
- catalyst
- ethylene glycol
- reactor
- partition
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
- C07C29/136—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
- C07C29/147—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof
- C07C29/149—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof with hydrogen or hydrogen-containing gases
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
- B01J8/067—Heating or cooling the reactor
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- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/0053—Controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Definitions
- the invention relates to a method for efficiently producing ethylene glycol, in particular to the use of a zoned heat exchange tube reactor and a casing structure heat exchange using an inner tube and an outer tube to realize the hydrogenation of dinonyl oxalate or diethyl oxalate.
- Ethylene glycol (EG) is an important organic chemical raw material, mainly used in the production of polyester fiber, antifreeze, unsaturated polyester resin, lubricant, plasticizer, nonionic surfactant and explosives. It can be used in industries such as paints, photographic developers, brake fluids and inks. It is used as a solvent and medium for ammonium perborate. It is used in the production of special solvent glycol ethers. It is widely used.
- the water content is high, the subsequent equipment (evaporator) process is long, the equipment is large, the energy consumption is high, and the total process yield is only about 70%, which directly affects the production cost of EG.
- Direct water law significantly reduces the water ratio compared to catalytic water law, while achieving higher feedstock conversion and EG selectivity. If the catalyst stability and related engineering problems are well solved, it is an irresistible trend to replace the non-catalytic hydration process with EC-catalyzed hydrated EG.
- the technology for preparing EG by ethylene carbonate (EC) method has greater advantages than EC direct water treatment in terms of raw material conversion rate, EG selectivity, raw material and energy consumption. a leading method.
- the EG and DMC co-production technology can make full use of the CO 2 resource of ethylene oxidation by-product. In the existing EC production equipment, it is very attractive to produce two very valuable products by simply increasing the reaction step of producing EC.
- Document CN200710061390.3 discloses a catalyst for hydrogenation of oxalate to ethylene glycol and a preparation method thereof, and the conversion of oxalate of the catalyst and the process thereof is low, generally about 96%, selectivity of ethylene glycol. About 92%.
- the technical problem to be solved by the present invention is the problem of low selectivity of ethylene glycol existing in the prior art.
- a new and highly efficient method of producing ethylene glycol is provided. This method has the advantage of high ethylene glycol selectivity.
- the present invention relates to a method for producing ethylene glycol, using oxalate as a raw material, using copper or an oxide thereof as a catalyst, at a reaction temperature of about 170 to 270 ° C, oxalate weight space velocity For about 0.2 to 7 hours, the hydrogen/ester molar ratio is about 20 to 200: about 1, and the reaction pressure is about 1.5 to 10 MPa, and the raw material is contacted with the catalyst in the reactor to form An effluent containing ethylene glycol, wherein the reactor is a zoned heat exchanger and a tubular reactor having an outer tube and an inner tube with a sleeve structure for heat exchange of the catalyst.
- the zone heat exchange means that the heat exchange zone of the reactor is composed of at least two, and the temperature of each heat exchange zone can be separately controlled, thereby achieving fine control of the temperature of the heat exchange zone and realizing the temperature of the bed. evenly distributed.
- the sleeve structure using the inner tube and the outer tube means that the reaction tube is composed of an inner tube and an outer tube, and a solid catalyst is filled in the annulus between the inner tube and the outer tube, and the inner tube is preheated by the raw material gas.
- the heat exchange channel, outside the outer tube is the heat exchange medium circulation channel, the temperature difference in the catalyst bed can be made smaller by the inner and outer tube sleeve structure, which approximates the isothermal reaction, which provides favorable protection for the optimal reaction performance of the catalyst. condition.
- the reaction conditions of the reactor in the above technical solution are preferably: the reaction temperature is about 180 to 260 ° C, the oxalate weight space velocity is about 0.3 to 3 hours - ] , and the hydrogen / ester molar ratio is about 50 to 150: 1,
- the reaction pressure is about 2.0 to 6.0 MPa.
- Catalyst preferred embodiment is based on the total weight of the catalyst, and the catalyst comprises about 5 to 80 parts of copper and an oxide thereof as an active component, about 10 to 90 parts of at least one of silica, molecular sieve or alumina as a carrier, and About 0.01 to 30 parts of a metal element selected from the group consisting of ruthenium, osmium, iridium and tungsten or an oxide thereof is an auxiliary.
- the catalyst comprises, in terms of total parts by weight of the catalyst, the catalyst comprising about 10 to 60 parts of copper and an oxide thereof as an active component, and at least one of about 15 to 90 parts of silicon oxide or aluminum oxide as a carrier, and about 0.05 to 20 parts of a metal element selected from the group consisting of ruthenium, osmium, iridium, tungsten, iridium, silver, and manganese or an oxide thereof is used as an auxiliary agent.
- the pore volume of the catalyst of the present invention is about
- 0.1 to 1 ml/g preferably about 0.15 to 0.8 ml/g, and an average pore diameter of about 2 to 12 nm, preferably about 3 to 12 nm.
- the catalyst of the present invention has a specific surface area of about 100 to 400 m 2 /g, preferably a range of about 150 to 380 m 2 /g.
- the catalyst of the present invention has a crush strength of from about 40 to about 180 Newtons/cm, preferably from about 40 to about 120 Newtons/cm.
- the reactor involved in the present invention comprises one or more 'sleeve and outer tubes of a sleeve structure, and the number of reaction tubes of the outer tube and the inner tube with a sleeve structure accounts for the total number of reaction tubes of the reactor.
- the oxalate hydrogenation reaction is an exothermic reaction, there is usually a reaction hot spot, which can be further controlled by the heat exchange zone partition control of the present invention.
- the hotspots are "flattened", which in turn increases selectivity and yield.
- the reactor of the present invention mainly comprises a raw material inlet, a raw material inlet, a gas primary distribution chamber, a gas primary distribution chamber, a gas secondary distribution chamber, and one or more sets of reaction tube bundle outer tubes ( That is, the outer tube) and the inner tube of the reaction tube bundle (ie, the inner tube), the catalyst bed, the gas collection chamber, the porous gas collection plate, and the product outlet, wherein the catalyst bed is sequentially divided into the first heat exchange block according to the flow direction of the reaction gas, a second heat exchange block and a third heat exchange block; the first heat exchange block is connected to the first zone heat exchange medium outlet and the first zone heat exchange medium inlet, and the second heat exchange block and the second zone heat exchange The medium inlet is connected to the second zone heat exchange medium outlet, and the third heat exchange block is connected to the third zone heat exchange medium inlet and the third zone heat exchange medium outlet.
- a reaction tube bundle inner tube is disposed in the catalyst bed, and the reaction tube bundle inner tube is connected to the gas primary distribution chamber and the gas primary distribution chamber in the gas collection chamber through the inlet gas connection hose.
- the porous gas collecting plate is located in the gas collecting chamber and is connected to the product outlet.
- the first heat exchange block and the second heat exchange block are separated by a first partition partition, and the second heat exchange block and the third heat exchange block are separated by a second partition partition.
- the radial temperature along the catalyst bed during the reaction is usually lower than the inlet temperature, and the temperature gradually increases after a distance along the bed, and reaches a higher hot spot temperature.
- the temperature of the reactor gradually decreases.
- the reaction is relatively intense, the temperature is high, the ethylene glycol selectivity is low, and the side reaction is high.
- the heat exchange (heat removal) of the individual block is performed, so that the temperature of the hot spot falls into the optimal reaction zone, thereby reducing the reactor.
- the temperature difference of the bed layer increases the occupancy of the catalyst in the optimum reaction temperature range, thereby improving the selectivity and yield of ethylene glycol and improving the utilization rate of the raw materials.
- the first partitioned baffle is about 1/12 to 1/3, preferably about 1/10 to 1/3 of the length of the reactor below the reactor cover.
- the second partitioning partition is located below the first partitioned partition ; the length of the reactor is about 1/12 to 1/3, preferably about 1/10 to 1/3.
- the first partition partition is about 1/10 ⁇ 1/3 of the length of the reactor under the cover of the reactor, or even about 1/8 - 1/3; one cent
- the area under the partition is about 1/10 to 1/3 of the length of the reactor, or even about 1/8 to 1/3.
- the front part of the reactor Since the catalytic reaction does not proceed at the same speed on the catalyst, the front part of the reactor is far from equilibrium, the reaction speed is fast, the reaction heat is released, the reaction is close to equilibrium, the reaction speed is slowed, and the reaction heat is released. If the temperature of the coolant is the same before and after, if the temperature of the coolant is lowered, the heat transfer temperature difference and heat transfer are increased, and the upper or front high reaction degree and the heat of reaction of the strong reaction heat are reached, the lower part or the rear part of the reactor The heat of reaction is reduced, the heat transfer is greater than the heat of reaction, and the reaction temperature is lowered, so that the reaction rate is further slowed down until the catalyst activity is below the catalyst activity, so that it is difficult to achieve the best of both worlds at the optimum reaction temperature.
- the invention aims at this fundamental contradiction, breaks through the existing coolant with the same temperature, and uses different temperature coolants in different sections of the reactor to solve the problem, so that the heat transfer in the reaction needs to be designed according to the size of the reaction heat removal, specifically according to the reaction.
- the flow direction of the gas in the catalyst layer is sequentially divided into a plurality of block regions before and after, and the heat is indirectly exchanged by the coolant through the heat exchange tubes.
- the present invention also adopts an inner tube in the catalyst bed and flows the raw material gas countercurrently, thereby preheating the raw material gas to save energy consumption and optimizing the temperature distribution of the catalyst bed. Achieve a balanced distribution of the full bed temperature, which maximizes the efficiency of the catalyst, minimizes the loss of oxalate, increases the selectivity of the glycol, and provides beneficial results.
- the apparatus shown in FIG. 1 is used, and the partition heat exchange is used to accurately control the temperature, and the catalyst structure is used for heat exchange of the inner tube and the outer tube, and the copper oxide catalyst is used to
- the acid ester is used as a raw material at a reaction temperature of about 160 to 260 ° C, a reaction pressure of about 1.0 to 8.0 MPa, a hydrogen ester molar ratio of about 20 to 200:1, and a reaction space velocity of about 0.1 to 7 hours _ 1 .
- the raw material is contacted with the catalyst to form an effluent containing ethylene glycol, wherein the conversion rate of the oxalate can be 100%, and the selectivity of the ethylene glycol can be greater than 95%, and a good technical effect is obtained.
- Figure 1 is a schematic view of a reactor in the process for producing ethylene glycol of the present invention.
- Fig. 1 and 2 are raw material inlets
- 3 is the upper head of the reactor
- 4 is the upper tube sheet
- 6 is the first partition partition
- 7 is the catalyst bed
- 8 Is the reactor tank
- 9 is the second partition partition
- 10 is the lower tube sheet
- 1 1 is the porous gas collecting plate
- 12 is the product outlet
- 13 is the gas collecting chamber
- 14 is the lower head of the reactor
- 15 is the first
- 16 is the third heat exchange block
- 17 is the third zone heat exchange medium outlet
- I 8 is the second zone heat exchange Medium inlet
- 19 is the second heat exchange block
- 20 is the second zone heat exchange medium outlet
- 21 is the first zone heat exchange medium inlet
- 22 is the first heat exchange block
- 23 is the first zone heat exchange medium outlet
- 24 is a gas secondary distribution chamber
- 25 is a reactor cover plate
- 26 and 27 are gas primary distribution chambers
- the raw materials in Fig. 1 are introduced from the raw material inlets 1 and 2, respectively, through the gas primary distribution chambers 26 and 27, and introduced into the reaction tube bundle inner tube 28 through the inlet gas connecting hose 29, and exchange heat with the reaction heat in the catalyst bed 7 to enter the gas two.
- the catalyst contacts the reaction, and the reacted product enters the gas collection chamber 13, and passes through the porous gas collection plate 1
- the product exit 12 is passed through the product outlet.
- the reaction heat in the reaction process with the catalyst is sequentially passed through the first heat exchange block 22 and the second heat exchange block.
- the temperature of each heat exchange block can be separately controlled by the temperature and flow rate of the heat exchange medium entering each heat exchange block, and the raw material gas from the reaction tube bundle inner tube 28 and the reaction gas During the countercurrent contact process, the heat balance of the catalyst bed 7 is also promoted, thereby achieving the uniform temperature distribution of the entire reactor catalyst bed.
- the catalyst was prepared by using silica (specific surface area: 150 m 2 /g) as a carrier and 20 parts of Cu, 5 parts of Bi and 2 parts of W according to the total weight of the catalyst.
- the catalyst A was obtained, and the catalyst had a pore volume of 0.3 ml/g, an average pore diameter of 5 nm, a catalyst specific surface area of 120 m 2 /g, and a crush strength of 60 N/cm.
- the second and third heat exchange mediums are all made of saturated water vapor, but the difference in pressure is used to achieve the difference in temperature, thereby realizing the temperature control of the reactor catalyst bed.
- the casing structure of the inner tube and the outer tube is adopted, and the first partition is separated.
- the plate is 1/8 of the length of the reactor from the reactor cover; the second partition is 1/4 of the length of the reactor below the first partition, and the third partition is separated from the second partition.
- the length of the reactor is 1/4, and the number of reaction tubes of the outer tube and the inner tube with the sleeve structure accounts for 100% of the total number of reaction tubes of the reactor.
- the catalyst was heat-exchanged, and then pure dioxalate oxalate (purchased from Shanghai Sinopharm Group, purity 99.9 %, the same below) was used as raw material, the reaction temperature was 220 ° C, the weight space velocity was 0.5 hour, and the hydrogen/ester molar ratio was 80. : 1, under the condition of a reaction pressure of 2.8 MPa, the raw material is contacted with the catalyst A to form an effluent containing ethylene glycol, and the reaction result is as follows: the conversion rate of dimethyl oxalate is 100%, the selectivity of ethylene glycol It is 96%.
- the carrier silica has an average specific surface area of 280 m 2 /g
- the catalyst B thus obtained comprises 30 parts of Cu, 10 parts of Bi and 1 part of ⁇ .
- the catalyst had a pore volume of 0.4 ml/g, an average pore diameter of 6 nm, a catalyst specific surface area of 260 m 2 /g, and a crush strength of 120 N/cm.
- the first, second and third heat exchange mediums are all saturated with water vapor, but the difference in pressure is used to achieve the difference in temperature.
- the temperature of the reactor catalyst bed is controlled, and the catalyst is heat exchanged by the casing structure of the inner tube and the evening tube, wherein the first partition partition is 1/5 of the length of the reactor below the reactor cover;
- the second partition partition is 1/6 of the length of the reactor below the first partition partition, and the third partition partition is 1/5 of the length of the reactor under the second partition partition, the outer tube and the inner tube with the casing structure
- the number of reaction tubes of the tube accounts for 70% of the total number of reaction tubes in the reactor.
- the catalyst prepared comprises 30 parts of Cu, 3 parts of Bi and 15 parts of W, which is counted as catalyst C.
- the catalyst had a pore volume of 0.5 ml/g, an average pore diameter of 8 nm, a catalyst specific surface area of 230 m 2 /g, and a crush strength of 100 N/cm.
- the first, second and third heat exchange mediums are all saturated with water vapor, but the difference in pressure is used to achieve the difference in temperature.
- the temperature of the reactor catalyst bed is controlled, and the catalyst structure is further exchanged by the casing structure of the inner tube and the outer tube, wherein the first partition partition is 1/7 of the length of the reactor below the reactor cover;
- the partition partition is 1/5 of the length of the reactor under the first partition partition, and the third partition partition is 1/3 of the length of the reactor under the second partition partition, the outer tube and the inner tube with the casing structure
- the number of reaction tubes is 20% of the total number of reaction tubes in the reactor.
- the reaction temperature is 200 ° C
- the weight space velocity is 0.5 hour
- the hydrogen/ester molar ratio is 100:1
- the reaction pressure is 2.8 MPa.
- the conversion of diethyl oxalate was 99%, and the selectivity of ethylene glycol was 94%.
- the catalyst prepared included 30 parts of Cu, 2 parts of Bi and 8 parts of W, which was counted as catalyst D.
- the catalyst had a pore volume of 0.6 ml/g, an average pore diameter of 8 nm, a catalyst specific surface area of 300 m 2 /g, and a crush strength of 150 N/cm.
- the first, second and third heat exchange mediums are all saturated with water vapor, but the difference in pressure is used to achieve the difference in temperature. Controlling the temperature of the reactor catalyst bed, and additionally using the casing structure of the inner tube and the outer tube to heat exchange the catalyst, wherein the first partition partition is 1/4 of the length of the reactor below the reactor cover; the second partition The partition is 1/6 of the length of the reactor under the first partition partition, and the third partition partition is 1/3 of the length of the reactor under the second partition partition, the outer tube and the inner tube with the casing structure
- the number of reaction tubes accounts for 60% of the total number of reaction tubes in the reactor.
- the carrier was a ZSM-5 molecular sieve
- the obtained catalyst composition included 45 parts of Cu, 7 parts of Bi and 2 parts of W, which were counted as catalyst E.
- the catalyst had a pore volume of 0.4 ml/g, an average pore diameter of 5 nm, a catalyst specific surface area of 230 m 2 /g, and a crush strength of 80 N/cm.
- the first, second and third heat exchange mediums all use saturated water vapor, but the difference in pressure is used to achieve the difference in thirst.
- the first partition partition is 1/4 of the length of the reactor below the reactor cover;
- the second partition partition is 1/8 of the length of the reactor below the first partition partition, and the third partition partition is 1/5 of the length of the reactor under the second partition partition, the outer tube and the inner tube with the casing structure
- the number of reaction tubes of the tube accounts for 30% of the total number of reaction tubes in the reactor.
- the conversion rate of dinonyl oxalate was carried out under the conditions of a reaction temperature of 230 ° C, a weight space velocity of 0.3 hours, a hydrogen/ester molar ratio of 70:1 and a reaction pressure of 2.2 MPa. 100%, the selectivity of ethylene glycol is 95%.
- the carrier is silica
- the obtained tempering agent composition comprises 20 parts of Cu and 2 parts of Ba, which is calculated as catalyst F.
- the catalyst had a pore volume of 0.6 ml/g, an average pore diameter of 6 nm, a catalyst specific surface area of 280 m 2 /g, and a crush strength of 120 N/cm.
- the first, second and third heat exchange mediums are all made of saturated water vapor, but the difference in the degree of realization is achieved by using different pressures.
- the temperature of the reactor catalyst bed is controlled, and the catalyst is heat exchanged by the casing structure of the inner tube and the outer tube, wherein the first partition partition is 1/5 of the length of the reactor below the reactor cover;
- the partition partition is 1/10 of the length of the reactor under the first partition partition, and the third partition partition is 1/6 of the length of the reactor under the second partition partition, the outer tube and the inner tube with the casing structure
- the number of reaction tubes is 90% of the total number of reaction tubes in the reactor.
- the reaction temperature is 230 ° C
- the weight space velocity is 0. hours
- the argon/ester molar ratio is 100:1
- the reaction pressure is 2.8 MPa
- the dimethyl oxalate quality Under the conditions of a percentage by weight of 14.5% (the balance of methanol), the conversion of dinonyl oxalate was 100%, and the selectivity of ethylene glycol was 98%.
- the heat exchange section is divided into 8 sections and 8 sections are equally divided.
- the heat exchange medium is saturated steam, but only pressure. Differently, the temperature of the reactor catalyst bed is controlled, and the number of reaction tubes of the outer tube and the inner tube with the casing structure accounts for 80% of the total number of reaction tubes of the reactor.
- the reaction temperature is 230 ° C
- the weight space velocity is 0.2 hours
- the hydrogen/ester molar ratio is 100:1
- the reaction pressure is 2.8 MPa
- the mass percentage of dinonyl oxalate is 14.5.
- the conversion of dinonyl oxalate was 100%
- the selectivity of ethylene glycol was 99%.
- the heat exchange section is divided into 15 sections and 8 sections are equally divided.
- the heat exchange medium is saturated steam, only the pressure is used. Differently, the temperature of the reactor catalyst bed is controlled, and the number of reaction tubes of the outer tube and the inner tube with the sleeve knot accounts for 60% of the total number of reaction tubes of the reactor.
- the reaction temperature is 230 ° C
- the weight space velocity is 0.4 hours
- the hydrogen / ester molar ratio is 100: 1
- the reaction pressure is 3.0 MPa
- the mass percentage of dimethyl oxalate Under the conditions of 14.5% (the balance of sterol), the conversion of dimethyl oxalate was 100%, and the selectivity of ethylene glycol was 97%.
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Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US14/001,120 US8962895B2 (en) | 2011-02-25 | 2012-02-24 | Method for the production of ethylene glycol |
RU2013143310/04A RU2570573C2 (ru) | 2011-02-25 | 2012-02-24 | Способ получения этиленгликоля |
AU2012220219A AU2012220219B2 (en) | 2011-02-25 | 2012-02-24 | Ethylene glycol preparation method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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CN201110046339.1 | 2011-02-25 | ||
CN201110045625.6 | 2011-02-25 | ||
CN201110045625.6A CN102649695B (zh) | 2011-02-25 | 2011-02-25 | 高效率生产乙二醇的方法 |
CN201110046339.1A CN102649697B (zh) | 2011-02-25 | 2011-02-25 | 通过草酸酯气相加氢制乙二醇的方法 |
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WO2012113268A1 true WO2012113268A1 (zh) | 2012-08-30 |
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PCT/CN2012/000237 WO2012113268A1 (zh) | 2011-02-25 | 2012-02-24 | 生产乙二醇的方法 |
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US (1) | US8962895B2 (zh) |
AU (1) | AU2012220219B2 (zh) |
MY (1) | MY162972A (zh) |
RU (1) | RU2570573C2 (zh) |
WO (1) | WO2012113268A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130331617A1 (en) * | 2011-02-25 | 2013-12-12 | Shanghai Research Institute Of Petrochemical Technology, Sinopec | Method for producing ethylene glycol from oxalate through the fluidized bed catalytic reaction |
CN108722408A (zh) * | 2017-12-26 | 2018-11-02 | 新疆兵团现代绿色氯碱化工工程研究中心(有限公司) | 一种草酸二甲酯气相加氢合成乙二醇的催化剂及其制备方法 |
CN111905657A (zh) * | 2019-05-07 | 2020-11-10 | 上海浦景化工技术股份有限公司 | 一种大型化合成气制乙二醇反应器 |
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JP7094894B2 (ja) | 2016-06-03 | 2022-07-04 | アイオワ・コーン・プロモーション・ボード | アルドヘキソースを生じる炭水化物のエチレングリコールへの高度に選択的な変換のための連続プロセス |
US10472310B2 (en) | 2016-06-03 | 2019-11-12 | Iowa Corn Promotion Board | Continuous processes for the highly selective conversion of sugars to propylene glycol or mixtures of propylene glycol and ethylene glycol |
RU2719441C1 (ru) * | 2018-10-22 | 2020-04-17 | Пуцзин Кемикал Индастри Ко., Лтд | Реактор для крупномасштабного синтеза этиленгликоля |
RU2706684C1 (ru) * | 2018-10-22 | 2019-11-20 | Пуцзин Кемикал Индастри Ко., Лтд | Гидрирующий катализатор, а также его получение и его применения |
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2012
- 2012-02-24 WO PCT/CN2012/000237 patent/WO2012113268A1/zh active Application Filing
- 2012-02-24 AU AU2012220219A patent/AU2012220219B2/en active Active
- 2012-02-24 MY MYPI2013701477A patent/MY162972A/en unknown
- 2012-02-24 RU RU2013143310/04A patent/RU2570573C2/ru active
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US20130331617A1 (en) * | 2011-02-25 | 2013-12-12 | Shanghai Research Institute Of Petrochemical Technology, Sinopec | Method for producing ethylene glycol from oxalate through the fluidized bed catalytic reaction |
US9102583B2 (en) * | 2011-02-25 | 2015-08-11 | China Petroleum & Chemical Corporation | Method for producing ethylene glycol from oxalate through the fluidized bed catalytic reaction |
CN108722408A (zh) * | 2017-12-26 | 2018-11-02 | 新疆兵团现代绿色氯碱化工工程研究中心(有限公司) | 一种草酸二甲酯气相加氢合成乙二醇的催化剂及其制备方法 |
CN111905657A (zh) * | 2019-05-07 | 2020-11-10 | 上海浦景化工技术股份有限公司 | 一种大型化合成气制乙二醇反应器 |
Also Published As
Publication number | Publication date |
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US20130338406A1 (en) | 2013-12-19 |
US8962895B2 (en) | 2015-02-24 |
MY162972A (en) | 2017-07-31 |
AU2012220219A1 (en) | 2013-09-05 |
RU2570573C2 (ru) | 2015-12-10 |
AU2012220219B2 (en) | 2016-06-30 |
RU2013143310A (ru) | 2015-03-27 |
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