CN102675020A - Process for preparing low-carbon olefin, aromatic hydrocarbon and functional alkane from multi-element carbon-containing raw material by using fixed bed reactor - Google Patents
Process for preparing low-carbon olefin, aromatic hydrocarbon and functional alkane from multi-element carbon-containing raw material by using fixed bed reactor Download PDFInfo
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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
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- 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
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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
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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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
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
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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
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/40—Ethylene production
Abstract
The invention discloses a process for preparing low-carbon olefin, aromatic hydrocarbon and functional alkane from a multi-element carbon-containing raw material by using a fixed bed reactor. The process comprises the following steps of: doping gas-state and liquid-state hydrocarbons with 1 to 20 carbon atoms into methanol, dimethyl ether or a mixture of the methanol and the dimethyl ether according to any proportion to form a multi-element raw material; introducing the raw material into the fixed bed reactor, and converting and performing a cracking reaction under the action of a catalyst; and finally, separating a product to extract a target product, and introducing the separated residual product into the reactor for recycling. According to the process, shape-selective catalysts of a plurality of systems are compounded and modified by a molecular design principle and modern engineering technical means, so that the shape-selective catalysts have the functions of cracking light hydrocarbons and converting low-carbon alkane, and a creative production process for preparing target products such as the low-carbon olefin, the aromatic hydrocarbon and the functional alkane through catalytic conversion, cracking and other reactions by using the methanol, the dimethyl ether and the gas-state and liquid-state hydrocarbons with 1 to 20 carbon atoms as raw materials is created on the basis of the functions.
Description
Technical field
The present invention relates to a kind of polynary carbon raw material adopts fixed-bed reactor to produce the technology of low-carbon alkene, aromatic hydrocarbons and functional alkane.
Background technology
Traditional alkene, petroleum aromatics working method all are to be raw material with the oil, process and get through cracking, dehydrogenation and reformation, aromizing.Along with the growth of its demand, the consumption of petroleum must heighten, and causes raw material supply well sold and in short supply day by day.Because oil is Nonrenewable resources, reserves are limited, and nowadays its resource is day by day exhausted.Especially in recent years, the world market oil price fluctuates very big, and constantly soaring, causes the production cost of triolefin, triphen to increase day by day, and it produces direct threats, thereby new triolefin, triphen raw materials for production upsurge have occurred seeking.In the last few years, the Technology development research of non-petroleum path producing light olefins and non-feed naphtha production aromatic hydrocarbons all was devoted in countries in the world.Technology by the technology and the expansion hydro carbons resource of coal or natural gas via preparing light olefins from methanol are produced alkenyl arene and extraordinary alkane is arisen at the historic moment, and obtains great breakthrough.Nowadays, innovative technology, the yield that cuts down the consumption of energy, improves target product and selectivity realize resources effective utilization, and reducing investment and running cost is the technical renovation of characteristics, and alkenyl arene production has got into the new stage of turnover.
The preparing light olefins from methanol technology, the MTO technology that UOP/Hydro company is arranged that has moved towards the industrialization at present; The technology such as DMTO of the MTP technology of Lurgi company and the Dalian Chemistry and Physics Institute of the Chinese Academy of Sciences.They all have a plurality of patents from the Preparation of Catalyst to the producing and manufacturing technique.But these technology are raw material with methyl alcohol or dme unit component all; The liquid light hydrocarbon class of methyl alcohol or dme dehydration reaction process by-product fails in system, further to be utilized, and causes the utilization ratio of whole production system carbon lower, the more high weak point of raw material consumption.
Though the industriallization of cheap light hydrocarbons system aromatic hydrocarbon technology, it is basic material that this technology is still with the oil, does not really break away from the restriction of oil.
Abideing by country is the energy strategy arrangement of main diverse development with coal, and production new texture, the new system putting forth effort to develop coal, Sweet natural gas, oil and drive development are imperative.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of polynary carbon raw material and adopt fixed-bed reactor to produce the technology of low-carbon alkene, aromatic hydrocarbons and functional alkane.This technology utilization molecular designing principle and modern project technique means are carried out composite and modification to the shape-selective catalyst of some systems, make it have cracking light hydrocarbon class and the function that transforms low-carbon alkanes, and on its basis, have created with methyl alcohol, dme and C
1～C
20Gas, liquid light hydrocarbon class be raw material, produce the innovation production technique of target products such as low-carbon alkene, aromatic hydrocarbons and functional alkane through reactions such as catalyzed conversion and cracking.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of polynary carbon raw material adopts fixed-bed reactor to produce the technology of low-carbon alkene, aromatic hydrocarbons and functional alkane, and this technology may further comprise the steps:
1. containing C
1～C
20One of gas, liquefied hydrocarbon is incorporated into methyl alcohol, dme and methyl alcohol and dme with arbitrary proportion mixture in, form multicomponent raw material;
2. above-mentioned multicomponent raw material is passed in the fixed-bed reactor, under catalyst action, transforms and scission reaction, generate low-carbon alkene, aromatic hydrocarbons and functional alkane, temperature of reaction is 180-660 ℃, and reaction pressure is 0.01-1.0MPa;
3. above-mentioned reaction product is separated to extract title product: low-carbon alkene, aromatic hydrocarbons and functional alkane, and separating recycle in the resultant product feeding reactor drum.
As further improvement of the present invention, said catalyzer is that the molecular sieve system of aluminosilicophosphate, ZSM-5 and Different Silicon aluminum ratio is with alkali metals modified, the catalyzer that is composited.
As further improvement of the present invention,, said multicomponent raw material purifies pre-treatment before feeding reactor drum, with the purity that guarantees multicomponent raw material and remove the impurity that influences explained hereafter.
As further improvement of the present invention, said reactor drum is to have the multistage steady state fixed that efficiently removes the reaction heat function.
As further improvement of the present invention, said with reaction product separate with the separation method that extracts title product low-carbon alkene, aromatic hydrocarbons and functional alkane be at least that deep cooling, refrigerant, oil absorb, PSA is refining, extractive distillation and functional chemical reaction it.
The invention has the beneficial effects as follows: the present invention is to make full use of low-carbon alcohol, ether compound inherent chemical property and conversion thereof and pyrolytic thermodynamic characteristics; Itself and light hydrocarbon pyrolytic reaction are coupled, and have designed with methyl alcohol, dme and C with molecular design method
1～C
20Multiple carbonaceousmaterial such as gas, liquid light hydrocarbon class be raw material; On the suitable catalyzer and under the operational condition; Utilize heat release and thermo-negative reaction intrinsic advantage to break through the limitation of original technology cleverly through catalyzed conversion and cracking etc., produced the innovation production technique of target products such as low-carbon alkene, aromatic hydrocarbons and functional alkane.This technology is the light hydrocarbon (C with different carbon numbers
1～C
20Gas, liquefied hydrocarbon) mix in methyl alcohol or the dme with arbitrary proportion and to form multicomponent raw material; Take the shape-selective catalyst of corresponding different qualities system according to a certain specific multicomponent raw material configuration and the set goal product performance; In same reaction unit engineering system; At lower temperature (180～660 ℃) and pressure (under 0.01～1.0MPa); Utilize conventional chemical plant installations to carry out controlled hydrocarbonylation and scission reaction, achieve carbon and in forming the set goal product process, be able to utilize efficiently.It is a kind of chemical industry novel process, a system integration innovative technology that makes alkenyl arene production to the raw material development in pluralism.Its technological core is:
1. the shape-selective catalyst system of selecting design to adapt by the essential property of material characteristic and target product, and prepare this technology special-purpose catalyst.This catalyst system mainly is the catalyzer of other molecular sieve system of aluminosilicophosphate, ZSM-5 and Different Silicon aluminum ratio with modifications such as basic metal, compound preparation, also comprises the one type of catalyzer that is usually used in the hydrocarbon conversion;
2. press the characteristics of catalyst system and feature selection design conversion, the cracking reactor of target product; Usually adopt to have and efficiently remove the reaction heat function; Innovative " multistage homeostatic reaction device " realized the efficient utilization of carbon raw material and the efficient recovery of energy, also can adopt fluidized-bed reactor when needing;
3. the target product needs that obtain according to expection are taked the gas, liquid product that the different deep cooling of precision or refrigerant, oil absorb, separation technology such as PSA is refining, extracting rectifying come separating reaction to produce, and also can not separate the total composition of direct utilization reaction generation;
4. configuration is complementary with selected catalyzer and reactor system, has the intelligence engineering system of innovation characteristic, to guarantee whole production system coordination linkage.
The optimum combination of these core cells has just formed with methyl alcohol, dme and C
1～C
20Gas, liquid light hydrocarbon class be raw material, through transforming the entire industries systems engineering of producing title products such as low-carbon alkene, aromatic hydrocarbons and functional alkane with reaction such as cracking.The target product of this technology can be adjusted according to the light hydrocarbon that adopts, material that systemic circulation is returned and the character of target product flexibly.
Concrete technical process configuration of the present invention mainly comprises five parts, i.e. raw material allotment and pre-treatment (containing heat exchange, regenerator section) system; Reactive system; The reaction product separation system; Unreacted reactant returns the recycle system of reaction unit; Production process monitoring and regulator control system.Wherein, for making raw material send into normal pressure smoothly or the minute-pressure reaction unit stably reacts, must guarantee that feed circuit has certain pressure (0.01～1.0MPa) and temperature (＞180 ℃); Reactor drum adopts has " the multistage homeostatic reaction device " that efficiently removes the reaction heat function; It can make reaction bed in the presence of the carrier gas (circulation gas that comprises system) of stable state; Remain optimal reaction temperature (180 ℃～660 ℃); Thereby, can guarantee reactant cracking or conversion under optimum reaction condition, heat energy is reclaimed efficiently and utilize; Take the separating technology of difference in functionality respectively according to the desired product scheme difference that is designed, reacted product (comprising gas, liquid two phases) is separated, thereby obtain alkene, aromatic hydrocarbons and the functional alkane product of expecting respectively; Be to guarantee steady-state operation, the high efficiente callback utilization of heat energy and effective utilization of hydrocarbon material of reactor drum, processing requirement is after product separation takes out, and non-title product must all or part of circulation Returning reacting system; Quiet rum, unreacted reactant for reactive system effectively returns on request, product is by the adjustment and the control of conditions such as specification of quality quantitatively obtains, and carries out logic function regulation and control effectively by the complete intelligence control system of a cover.(seeing accompanying drawing-process flow sheet)
The present invention utilizes molecular designing principle and modern project technique means that the shape-selective catalyst of some systems is carried out composite and modification; Make it have cracking light hydrocarbon class and the function that transforms low-carbon alkanes; And on its basis; Gas, the liquid light hydrocarbon class created with methyl alcohol, dme and C1～C20 are raw material, produce the innovation production technique of target products such as low-carbon alkene, aromatic hydrocarbons and functional alkane through reactions such as catalyzed conversion and cracking.This technology can select to have the modified catalyst of different choice property and yield and the reaction unit system that adapts as required; Make gas, liquid light hydrocarbon class (containing Sweet natural gas) in the presence of methyl alcohol or dme; In than low reaction temperatures and pressure environment, carry out controlled cracking and conversion reaction, and can generate triolefin, triphen and functional alkane product by expectedly forming to distribute.Handiness, the adjustability of technology of the present invention are stronger; Resource utilization is higher, and particularly the effective rate of utilization of carbon is high; The heat energy of reaction process can be reclaimed and utilized efficiently; Environmentally friendly.The present invention is a system integration innovative technology to the raw material development in pluralism, to the adjustment of energy structure system, improves efficiency, and reducing production costs has important value; Be of great immediate significance to transforming existing petrochemical complex and gas chemical industry technology and device; Also has great strategic importance to developing contemporary derived energy chemical.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment 1:
With carbon four is raw material, its composition: propylene 0.06%; Trimethylmethane 0.52%; Butane 34.01%; Butylene 0.28%; Iso-butylene 0.11%; 2-butylene (along anti-) 63.95%; Carbon 5 0.92%.
Reactor drum adopts fixed-bed reactor, and its flat-temperature zone temperature error is ± 2 ℃, dress ZSM-5 modified catalyst in the flat-temperature zone.
Carbon four raw materials: water: carrier gas=1: 2: 1.Carbon four raw material weight air speeds: 1; Temperature of reaction: 470 ℃;
Reaction back gas comprises 90%; Gasoline accounts for 10%.
Gaseous constituent: C
1～C
331.5%, wherein methane 0.02%, ethane+ethene 4.81%, propane 1.23%, propylene 25.42%; Residue C458.4%, wherein iso-butylene contains 15.2%.
Embodiment 2:
With carbon four raw materials and the methanol mixed of instance 1, carbon four raw materials: methyl alcohol: water=1: 1: 3; Carbon four air speeds: 0.5; React with the ZSM-5 catalyzer, it is the living C of common property as a result
1～C
3Gas 36% produces gasoline 10.6%, and residue carbon 4 54.4% (changeing carbon 4 3.5% comprising methyl alcohol) is far more than iso-butylene content 16.0% in the carbon four, and propylene accounts for 29.4% in the gas, and ethene accounts for 8.3%.
Embodiment 3:
With carbon four is raw material, its composition: propane 1.67%, propylene 0.37%, Trimethylmethane 12.84%, butane 20.43%, n-butene 43.72%, 2-butylene (along anti-) 21.35%, carbon 5 0.62%.
The ZSM-5 modified catalyst is contained in the fixed-bed reactor.In air speed is 0.5 (weight space velocity), and temperature of reaction is 470 ℃, raw material (carbon four): water: carrier gas is to react under 1: 2: 1 the condition.
The total gas comprises 85.78% in reaction back (C wherein
1～C
327.02%, carbon 4 58.76%), oil accounts for 14.2%; Propylene accounts for 25.98% in the gas, and ethene accounts for 4.3%, and iso-butylene accounts for 13.15%.
The per pass conversion of entire reaction raw material (carbon four) is 54.37%.
Embodiment 4:
The ZSM-5 modified catalyst is contained in the fixed-bed reactor.In carbon four, add methyl alcohol as raw material, and be 0.5 (weight space velocity) in carbon four air speeds, carbon four: water is 4: 1 (weight ratio), and the methyl alcohol air speed is 0.2, and temperature of reaction is to react under 450 ℃ the condition.
Reaction back C
1～C
3Gas comprises 36.0% produces gasoline 10.6%, and residue carbon four accounts for 54.4%, and (wherein iso-butylene accounts for 8.7%; 45.7% is other), iso-butylene content accounts for 16.0% in the carbon four of reaction back, and propylene accounts for 29.4% in the gas of reaction back; Ethene accounts for 8.3%, and iso-butylene accounts for 9.5%.
Conversion of methanol is 100%, changes into C
1～C
4Gaseous product.
Embodiment 5:
Raw material: coking naphtha
Over point: 27.5 ℃; 10%, 55.5 ℃, the stratographic analysis aromatic free; 50%, 114 ℃, olefin(e) centent is greater than 30%; 90%, 157 ℃; 180 ℃ at emphasis; Heat up in a steamer 98% entirely; The stratographic analysis aromatic free, olefin(e) centent is greater than 30%.
The ZSM-5 modified catalyst is contained in the fixed-bed reactor.Air speed (coking naphtha weight space velocity): 0.4, oil: water=1: 3, temperature of reaction: 480 ℃～490 ℃.
The oil single-pass conversion is a gas 35.1%, and oil is converted into aromatic hydrocarbons 5.2%, gaseous constituent: methane 2.6%, ethene+ethane 4.36%, propane 2.75%, propylene 48.5%, carbon 4 25.60%, carbon 5 16.2%.
Embodiment 6:
Raw material is an oil: methyl alcohol: water=1: 4: 2.4 (weight ratio), temperature of reaction: 490 ℃, the transformation efficiency that oil is converted into gas is 37.3%, and methanol conversion is 100%, changes gas (calculating the transformation efficiency of oil by this) into.
In the gas: methane 0.79%, ethene+ethane 11.35%, propane 1.43%, propylene 49.43%, Trimethylmethane 2.45%, butane 0.48%, butylene 3.51%, iso-butylene 9.58%, 2-butylene (suitable) 5.11%, 2-butylene 3.80%, other are that carbon is more than five.
Contain aromatic hydrocarbons 10% in the surplus oil.
Embodiment 7:
Raw material: petroleum naphtha often reduces pressure.
Over point: 37 ℃; 10%75 ℃; 50%114 ℃; 90%144.5 ℃; 171 ℃ at terminal point; Heat up in a steamer 98.5% entirely; Stratographic analysis aromatic free and alkene.
The ZSM-5 modified catalyst is contained in the fixed-bed reactor.
Reaction pressure is a normal pressure, and temperature of reaction is 490 ℃, and the petroleum naphtha weight space velocity is 0.4, oil: water is 1: 2.
It is 25.3% that the oil single-pass conversion becomes gas, gaseous constituent: methane 1.33%, ethene+ethane 17.46% (ethene 17.1%, ethane 0.36%); Propane 9.38%, propylene 39.2%, Trimethylmethane 2.65%, butylene 2.18%; Iso-butylene 6.4%, along anti-2-butylene 5.7%, other are that carbon is more than five.
Embodiment 8:
Raw material is an oil: methyl alcohol: water=1: 0.5: 2 (weight ratio), and the liquid weight air speed of oil is 0.4, and temperature of reaction is 490 ℃, and reaction pressure is a normal pressure.
Methanol conversion is 100% (pressing the whole reformed gas of methyl alcohol calculates).It is 29.0% that oil is converted into gas, the composition of gas: methane 1.6%, ethene+ethane 16.64% (ethene 16.3%; Ethane 0.34%), propane 6.4%, propylene 43.7%; Trimethylmethane 2.53%, butane 4.13%, butylene 2.58%; Iso-butylene 7.21%, along anti-2-butylene 6.25%, other are that carbon is more than five.
During the reaction back is fuel-displaced: toluene 5.56%, YLENE 5.05%.
Embodiment 9:
The oil that goes out after the reaction among the embodiment 8 is carried out the secondary experiment as raw material, and other conditions are with embodiment 8.
The oil reformed gas is 26.3%, the composition of gas: methane 1.53%, and ethene+ethane 16.11%, propane 4.0%, propylene 49.60%, Trimethylmethane 1.73%, butane 2.26%, butylene 2.75%, iso-butylene 7.30%, along anti-2-butylene 6.6%, other are carbon five.
Aromaticity content in the oil of reaction back: toluene 6.1%, YLENE 7.14%, C9 aromatic 1.7%.
Claims (5)
1. a polynary carbon raw material adopts fixed-bed reactor to produce the technology of low-carbon alkene, aromatic hydrocarbons and functional alkane, it is characterized in that this technology may further comprise the steps:
1. containing C
1～C
20One of gas, liquefied hydrocarbon is incorporated into methyl alcohol, dme and methyl alcohol and dme with arbitrary proportion mixture in, form multicomponent raw material;
2. above-mentioned multicomponent raw material is passed in the fixed-bed reactor, under catalyst action, transforms and scission reaction, generate low-carbon alkene, aromatic hydrocarbons and functional alkane, temperature of reaction is 180-660 ℃, and reaction pressure is 0.01-1.0MPa;
3. above-mentioned reaction product is separated to extract title product: low-carbon alkene, aromatic hydrocarbons and functional alkane, and separating recycle in the resultant product feeding reactor drum.
2. polynary carbon raw material according to claim 1 adopts fixed-bed reactor to produce the technology of low-carbon alkene, aromatic hydrocarbons and functional alkane, it is characterized in that: said catalyzer is that the molecular sieve system of aluminosilicophosphate, ZSM-5 and Different Silicon aluminum ratio is with alkali metals modified, the catalyzer that is composited.
3. polynary carbon raw material according to claim 1 and 2 adopts fixed-bed reactor to produce the technology of low-carbon alkene, aromatic hydrocarbons and functional alkane, it is characterized in that: before said multicomponent raw material feeds reactor drum, purify pre-treatment.
4. polynary carbon raw material according to claim 3 adopts fixed-bed reactor to produce the technology of low-carbon alkene, aromatic hydrocarbons and functional alkane, and it is characterized in that: said reactor drum is to have the multistage steady state fixed that efficiently removes the reaction heat function.
5. polynary carbon raw material according to claim 3 adopts fixed-bed reactor to produce the technology of low-carbon alkene, aromatic hydrocarbons and functional alkane, it is characterized in that: said with reaction product separate with the separation method that extracts title product low-carbon alkene, aromatic hydrocarbons and functional alkane be at least that deep cooling, refrigerant, oil absorb, PSA is refining, one of extractive distillation and functional chemical reaction.
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| CN104557362A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | System and method for preparing aromatic hydrocarbons and co-producing ethylene and propylene by transforming methanol and/or dimethyl ether |
| CN104557368A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | System for preparing ethylene, ethylene and arene from kinds of raw materials by coupling and transformation and method for system |
| CN106866329A (en) * | 2017-01-22 | 2017-06-20 | 江苏天诺新材料科技股份有限公司 | The preparation method of low-carbon alkene |
| CN108276238A (en) * | 2018-02-12 | 2018-07-13 | 浙江大学 | The method that F- T synthesis light oil is total to preparing low-carbon olefin by catalytically cracking with methanol |
| CN109336726A (en) * | 2018-11-29 | 2019-02-15 | 北京惠尔三吉绿色化学科技有限公司 | A kind of technique of carbon four, light oil and coupling between methanol preparing propylene by catalytic cracking ethylene |
| CN110951510A (en) * | 2019-12-23 | 2020-04-03 | 安徽启东热能科技有限公司 | Clean desulfurization modification method of light hydrocarbon fuel |
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| CN104557362A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | System and method for preparing aromatic hydrocarbons and co-producing ethylene and propylene by transforming methanol and/or dimethyl ether |
| CN104557368A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | System for preparing ethylene, ethylene and arene from kinds of raw materials by coupling and transformation and method for system |
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| CN108276238A (en) * | 2018-02-12 | 2018-07-13 | 浙江大学 | The method that F- T synthesis light oil is total to preparing low-carbon olefin by catalytically cracking with methanol |
| CN108276238B (en) * | 2018-02-12 | 2021-02-02 | 浙江大学 | Method for preparing low-carbon olefin by Fischer-Tropsch synthesis light oil and methanol co-catalytic cracking |
| CN109336726A (en) * | 2018-11-29 | 2019-02-15 | 北京惠尔三吉绿色化学科技有限公司 | A kind of technique of carbon four, light oil and coupling between methanol preparing propylene by catalytic cracking ethylene |
| CN110951510A (en) * | 2019-12-23 | 2020-04-03 | 安徽启东热能科技有限公司 | Clean desulfurization modification method of light hydrocarbon fuel |
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