CN105861070A - Technology for synthesizing methanol dimethyl ether through biomass gasification - Google Patents

Technology for synthesizing methanol dimethyl ether through biomass gasification Download PDF

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CN105861070A
CN105861070A CN201610430060.6A CN201610430060A CN105861070A CN 105861070 A CN105861070 A CN 105861070A CN 201610430060 A CN201610430060 A CN 201610430060A CN 105861070 A CN105861070 A CN 105861070A
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methanol
gasification
gas
dimethyl ether
biomass
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方许
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Anhui Xinshengli Biology Technology Co Ltd
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Anhui Xinshengli Biology Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
    • C10J3/56—Apparatus; Plants
    • 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
    • C07C29/15—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 oxides of carbon exclusively
    • C07C29/151—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 oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/1516—Multisteps
    • C07C29/1518—Multisteps one step being the formation of initial mixture of carbon oxides and hydrogen for synthesis
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/09—Preparation of ethers by dehydration of compounds containing hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/721—Multistage gasification, e.g. plural parallel or serial gasification stages
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/82—Gas withdrawal means
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0903—Feed preparation
    • C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0903—Feed preparation
    • C10J2300/0909—Drying
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0916—Biomass
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0956—Air or oxygen enriched air
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0966—Hydrogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
    • C10J2300/0976—Water as steam
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
    • C10J2300/1656—Conversion of synthesis gas to chemicals
    • C10J2300/1665—Conversion of synthesis gas to chemicals to alcohols, e.g. methanol or ethanol
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1853—Steam reforming, i.e. injection of steam only
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention discloses a technology for synthesizing methanol dimethyl ether through biomass gasification. The technology comprises the steps that gasified gas is prepared from a biomass material through a fluidized bed gasifier, hydrogasification, reforming, oxygen/steam gasification, reforming and mixing after reforming are carried out, and methanol dimethyl ether is prepared from hot mixed gas obtained after methanol is generated. The biomass gasified gas can be added to any procedure of an existing methanol production device of a methanol plant, and mixed with coal-based synthesized gas in the methanol plant to be synthesized into methanol together, existing air separation, purification, CO transformation, decarburization and methanol synthesizing devices in the methanol plant can be fully utilized, and investment cost can be greatly reduced. Methanol or methanol dimethyl ether prepared in a biomass multiple gasification mode has the advantages of being high in quality, simple in technology and high in utilization rate, reducing cost and the like.

Description

A kind of technique of gasification of biomass synthesizing methanol dimethyl ether
Technical field
The invention belongs to biomass fuel processing technique field, particularly relate to a kind of biogas and be combined to The technique of methanol and dimethyl ether.
Background technology
Along with China and the development of World Economics, global energy supply and environmental protection problem become increasingly conspicuous, The shortage of resource is just becoming the common problem that countries in the world face.Biomass energy is that one preferably can be again The raw energy, its wide material sources, regenerate every year.According to estimates, the energy equivalence that plant stores every year is in the world 10 times of main fuel consumption, and the utilization as the energy is less than the 1% of its total amount.China's biomass Resource is the abundantest, has substantial amounts of agricultural, industry and forest garbage output every year.
The main production raw material of China's methanol is coal and natural gas at present, although coal is cheapest synthesis first Raw polyol, but coal is non-renewable Fossil fuel, can adopt the time limit also with regard to decades, in ammonia from coal mistake Cheng Zhonghui releases substantial amounts of greenhouse gases CO2, serious environment pollution.Therefore, changed by biomass energy Technology, is converted into the cleaning fuel such as methanol, dimethyl ether by the biomass energy that agricultural are discarded, and part substitutes The fuel such as coal, oil and natural gas, receives people for increasing peasant, reduces the discharge of greenhouse gases, very To ensureing that China's future source of energy safety is all extremely important.
Gasification of biomass methanol synthetic system (BGMSS), mainly by biomass pretreatment, pyrolytic gasification, Gas purification, gas reforming, CO2The synthesis of/CO proportion adjustment, methanol (dimethyl ether) and separating step structure Become.Methanol Synthesis from Biomass or dimethyl ether (DME) first have to be converted to rich in H biomass2And CO Synthesis gas.Coal and natural gas are Hydrocarbon, and biomass are carbohydrates, due to biomass Middle carbon content is on the low side, and oxygen content is higher, and the gasification of biomass is just significantly different with coal gasification, biological CO and CO in matter gasification afterproduct2Content higher, and H2Then the most not enough.
Summary of the invention
The technique that it is an object of the invention to provide a kind of gasification of biomass synthesizing methanol dimethyl ether, by life The multiple gasification mode of material methanol or methanol and dimethyl ether to have quality high, simplified processing process.
The present invention is achieved by the following technical solutions:
The present invention is the technique of a kind of gasification of biomass synthesizing methanol dimethyl ether, comprises the steps:
Biological material is ground into the granule of 1-5cm length by a by pulverizer, and moisture content of going out is dried； Gasification gas is prepared by fluidized-bed gasification furnace；The temperature of fluidized-bed gasification furnace controls at 830 DEG C-850 DEG C；
B hydrogasification, reformation, biomass are first reacted in hydrogasification stove, generate containing H2, CO and The high methane gas of methane, this high methane gas is sent out with steam at reforming reactor together with additional methane again Raw transformationreation, generates CO and H2, H that two secondary responses generate jointly2, former as synthesizing methanol of CO Material gas；
The gasification gas produced in step a is passed in step b hydrogasification stove by c；Step a produces Input quantity and the oxygen input quantity of gasification gas be the ratio of 1:1；
The gasification of d oxygen/water steam, reformation: utilize oxygen or oxygen-enriched air and steam, use pressurization Gasification furnace is by gasification of biomass, and gasification gas is purified, steam CO converts, H2/CO ratio adjusts, then Synthesizing methanol；
Hot mixing gas after f generates methanol is 200-280 DEG C of input DME synthesis tower in temperature, in modification Under aluminium oxide catalyst effect, temperature 280-350 DEG C, pressure 3.0-5.0Mpa methanol dehydration generates thick two Methyl ether mixture, sends into cooler, is cooled to 0 DEG C and enters separator, isolate methanol, dimethyl ether and water Mixture, send into methyl ether rectifying column, in gas, the mixture of unsegregated methanol, dimethyl ether and water send Enter dimethyl ether scrubbing tower, wash out the mixture of the methanol in gas, dimethyl ether and water, subtract through air relief valve It is pressed onto 1.0Mpa feeding methyl ether rectifying column rectification and goes out dimethyl ether.
Further, the gasification gas produced in described step b is pressurized to 4.0Mpa through compressor, sends into first Alcohol synthetic tower, under copper-based catalysts effect, temperature 280 DEG C, pressure 4.0Mpa oven gas closes at methanol Cheng Tazhong, makes part H2With CO and CO2Reaction generates methanol, generates the mixing steam after methanol, with body Long-pending meter, the gas that wherein gasifies is 90%, methanol 10%, and hot mixing gas is sent into dimethyl ether with temperature 250 DEG C and closed Becoming tower, under modified aluminium oxide catalyst effect, temperature 320 DEG C, under pressure 4.0Mpa, methanol takes off Water generates thick dimethyl ether mixture.
Further, described step b hydrogasification, reform in the ratio of hydrogen and CO use 1:1 or 1.2:2 adjustment ratio.
Further, the input ratio of oxygen/water steam in described step d oxygen/water steam gasification, reformation For 0.8:1.2 or 1.1:1.5.
The method have the advantages that
Biomass gasified gas of the present invention can add people in any operation of the existing methyl alcohol product installation of Methanol Plant and enter Go, mix common synthesizing methanol with the coal based synthetic gas of Methanol Plant, so can make full use of Methanol Plant existing Space division, purification, CO conversion, decarburization, methanol synthesizer, investment cost can be substantially reduced.This By the multiple gasification mode of biomass methanol or methanol and dimethyl ether to have quality high, technique is simple, Utilization rate height reduces the features such as cost.
Certainly, the arbitrary product implementing the present invention it is not absolutely required to reach all the above excellent simultaneously Point.
Detailed description of the invention
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described reality Executing example is only a part of embodiment of the present invention rather than whole embodiments.Based on the reality in the present invention Execute example, those of ordinary skill in the art obtained under not making creative work premise all other Embodiment, broadly falls into the scope of protection of the invention.
The present invention is the technique of a kind of gasification of biomass synthesizing methanol dimethyl ether, following process:
Biological material is ground into the granule of 1-5cm length by a by pulverizer, and moisture content of going out is dried； Gasification gas is prepared by fluidized-bed gasification furnace；The temperature of fluidized-bed gasification furnace controls at 830 DEG C-850 DEG C；
B hydrogasification, reformation, biomass are first reacted in hydrogasification stove, generate containing H2, CO and The high methane gas of methane, this high methane gas is sent out with steam at reforming reactor together with additional methane again Raw transformationreation, generates CO and H2, H that two secondary responses generate jointly2, former as synthesizing methanol of CO Material gas；
The gasification gas produced in step a is passed in step b hydrogasification stove by c；Step a produces Input quantity and the oxygen input quantity of gasification gas be the ratio of 1:1；
The gasification of d oxygen/water steam, reformation: utilize oxygen or oxygen-enriched air and steam, use pressurization Gasification furnace is by gasification of biomass, and gasification gas is purified, steam CO converts, H2/CO ratio adjusts, then Synthesizing methanol；Using oxygen/water steam as gasifying medium, operate pressure 2.7MPa, biomass are at stream Producing gasification gas after changing bed gasification, gas consists of: CO35.6%, H228.6%, C0228.8%, CH4 6.7%, other 0.3% (butts).Gasification gas, by CO converter unit, makes H2/ C0 ratio reaches to be best suitable for The ratio of methanol-fueled CLC.This project be mainly characterized by inducing one the discharge gas of methanol synthesis reactor one Individual autothermal reformer ATR, makes the methane in gas and steam reforming.
Hot mixing gas after f generates methanol is 200-280 DEG C of input DME synthesis tower in temperature, in modification Under aluminium oxide catalyst effect, temperature 280-350 DEG C, pressure 3.0-5.0Mpa methanol dehydration generates thick two Methyl ether mixture, sends into cooler, is cooled to 0 DEG C and enters separator, isolate methanol, dimethyl ether and water Mixture, send into methyl ether rectifying column, in gas, the mixture of unsegregated methanol, dimethyl ether and water send Enter dimethyl ether scrubbing tower, wash out the mixture of the methanol in gas, dimethyl ether and water, subtract through air relief valve It is pressed onto 1.0Mpa feeding methyl ether rectifying column rectification and goes out dimethyl ether.
Wherein, the gasification gas produced in step b is pressurized to 4.0Mpa through compressor, sends into methyl alcohol synthetic reactor, Under copper-based catalysts effect, temperature 280 DEG C, pressure 4.0Mpa oven gas, in methyl alcohol synthetic reactor, makes Part H2With CO and CO2Reaction generates methanol, generates the mixing steam after methanol, by volume, wherein Gasification gas is 90%, methanol 10%, and hot mixing gas is sent into DME synthesis tower with temperature 250 DEG C, changed Property aluminium oxide catalyst effect under, temperature 320 DEG C, under pressure 4.0Mpa, methanol dehydration generate thick two Methyl ether mixture.
Wherein, in step b hydrogasification, reformation, the ratio of hydrogen and CO uses 1:1's or 1.2:2 Adjustment ratio.
Wherein, step d oxygen/water steam gasification, reform in the input ratio of oxygen/water steam for 0.8:1.2 Or 1.1:1.5.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.Preferred embodiment is also There is no all of details of detailed descriptionthe, be not intended to the detailed description of the invention that this invention is only described yet.Obviously, According to the content of this specification, can make many modifications and variations.This specification is chosen and specifically describes this A little embodiments, are to preferably explain the principle of the present invention and actual application, so that affiliated technology neck Field technique personnel can be best understood by and utilize the present invention.The present invention is only by claims and whole model thereof Enclose the restriction with equivalent.

Claims (4)

1. the technique of a gasification of biomass synthesizing methanol dimethyl ether, it is characterised in that: comprise the steps:
Biological material is ground into the granule of 1-5cm length by a by pulverizer, and moisture content of going out is done Dry；Gasification gas is prepared by fluidized-bed gasification furnace；The temperature of fluidized-bed gasification furnace controls at 830 DEG C -850℃；
B hydrogasification, reformation, biomass are first reacted in hydrogasification stove, generate containing H2、CO And the high methane gas of methane, this high methane gas steams with water at reforming reactor together with additional methane again Gas generation transformationreation, generates CO and H2, H that two secondary responses generate jointly2, CO as synthesis first The unstripped gas of alcohol；
The gasification gas produced in step a is passed in step b hydrogasification stove by c；Step a is produced The input quantity of raw gasification gas is the ratio of 1:1 with oxygen input quantity；
The gasification of d oxygen/water steam, reformation: utilizing oxygen or oxygen-enriched air and steam, employing adds Pressure gasification furnace is by gasification of biomass, and gasification gas is purified, steam CO converts, H2/CO ratio adjusts, Then synthesizing methanol；
Hot mixing gas after f generates methanol is 200-280 DEG C of input DME synthesis tower in temperature, is changing Property aluminium oxide catalyst effect under, temperature 280-350 DEG C, pressure 3.0-5.0Mpa methanol dehydration generate Thick dimethyl ether mixture, sends into cooler, is cooled to 0 DEG C and enters separator, isolate methanol, diformazan Ether and the mixture of water, send into methyl ether rectifying column, unsegregated methanol, dimethyl ether and water in gas Mixture sends into dimethyl ether scrubbing tower, washes out the mixture of the methanol in gas, dimethyl ether and water, It is depressurized to 1.0Mpa feeding methyl ether rectifying column rectification through air relief valve and goes out dimethyl ether.
The technique of a kind of gasification of biomass synthesizing methanol dimethyl ether the most according to claim 1, its feature Being, the gasification gas produced in described step b is pressurized to 4.0Mpa through compressor, sends into methanol-fueled CLC Tower, under copper-based catalysts effect, temperature 280 DEG C, pressure 4.0Mpa oven gas is at methyl alcohol synthetic reactor In, make part H2With CO and CO2Reaction generates methanol, generates the mixing steam after methanol, with volume Meter, the gas that wherein gasifies is 90%, methanol 10%, and hot mixing gas is sent into dimethyl ether with temperature 250 DEG C and closed Become tower, under modified aluminium oxide catalyst effect, temperature 320 DEG C, under pressure 4.0Mpa, methanol Dehydration generates thick dimethyl ether mixture.
The technique of a kind of gasification of biomass synthesizing methanol dimethyl ether the most according to claim 1, its feature Being, in described step b hydrogasification, reformation, the ratio of hydrogen and CO uses 1:1 or 1.2:2 Adjustment ratio.
The technique of a kind of gasification of biomass synthesizing methanol dimethyl ether the most according to claim 1, its feature Being, in the gasification of described step d oxygen/water steam, reformation, the input ratio of oxygen/water steam is 0.8:1.2 or 1.1:1.5.
CN201610430060.6A 2016-06-15 2016-06-15 Technology for synthesizing methanol dimethyl ether through biomass gasification Pending CN105861070A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112029542A (en) * 2020-08-17 2020-12-04 新奥科技发展有限公司 Hydro-gasification system and method
WO2023029151A1 (en) * 2021-09-03 2023-03-09 山东大学 Method and system for realizing cyclic utilization of carbon‐hydrogen by using organic wastes
CN116478013A (en) * 2023-04-11 2023-07-25 上海元鳇能源科技有限公司 Method for preparing methanol by hydrogenating biomass gasification synthesis gas

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CN1331832C (en) * 2006-07-04 2007-08-15 杨奇申 Production method of non-convertible combined methanol and dimethyl ether from coke oven gas
CN101454264A (en) * 2006-04-05 2009-06-10 森林生物燃料有限公司 System and method for converting biomass to ethanol via syngas
JP2014111768A (en) * 2006-09-29 2014-06-19 Kellogg Brown & Root Llc Methods for producing synthesis gas

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CN101454264A (en) * 2006-04-05 2009-06-10 森林生物燃料有限公司 System and method for converting biomass to ethanol via syngas
CN1331832C (en) * 2006-07-04 2007-08-15 杨奇申 Production method of non-convertible combined methanol and dimethyl ether from coke oven gas
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CN112029542A (en) * 2020-08-17 2020-12-04 新奥科技发展有限公司 Hydro-gasification system and method
WO2023029151A1 (en) * 2021-09-03 2023-03-09 山东大学 Method and system for realizing cyclic utilization of carbon‐hydrogen by using organic wastes
CN116478013A (en) * 2023-04-11 2023-07-25 上海元鳇能源科技有限公司 Method for preparing methanol by hydrogenating biomass gasification synthesis gas

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