CN1528656A - Method and apparatus for catalytic preparation of hydrogen by biomass down-draft gasifying stove - Google Patents

Method and apparatus for catalytic preparation of hydrogen by biomass down-draft gasifying stove Download PDF

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Publication number
CN1528656A
CN1528656A CNA2003101117993A CN200310111799A CN1528656A CN 1528656 A CN1528656 A CN 1528656A CN A2003101117993 A CNA2003101117993 A CN A2003101117993A CN 200310111799 A CN200310111799 A CN 200310111799A CN 1528656 A CN1528656 A CN 1528656A
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China
Prior art keywords
vapourizing furnace
hydrogen
reactor
biomass
reaction
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CNA2003101117993A
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CN1214972C (en
Inventor
吕鹏梅
常杰
熊祖鸿
王铁军
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Guangzhou KEHUAN Energy Technology Co Ltd
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Guangzhou Institute of Energy Conversion of CAS
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Priority to CNB2003101117993A priority Critical patent/CN1214972C/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

The invention discloses a raw matter down absorbing gasification furnace catalysis hydrogen producing method, including the steps: raw matter is added in from the top of the gasification furnace, and after dried and pyrolyzed, makes an incomplete combustion reaction with the rich oxygen fed from the gasification furnace, to give out heat, during descending, the produced gas makes a water vapor reforming reaction and a tar fission reaction with the water vapor fed from the reducing region, the gas coming from the bottom of the gasification furnace again passes through the fixed bed catalytic reactor to make a further tar fission reaction, to produce a hydrogen-rich gas, which is made into high-purity hydrogen by variable pressure absorption. It also discloses a device to implement the above method. It has high conversion and energy utilization ratio, without discharging waste water and residue; the needed raw matter is rich.

Description

A kind of method and device thereof of biomass downdraft vapourizing furnace catalyzing manufacturing of hydrogen
Affiliated technical field
The device that the present invention relates to a kind of method of biomass catalyzing hydrogen manufacturing and realize this method.
Background technology
Hydrogen is a kind of highly desirable secondary energy, has the combustion heat value height, cleanliness without any pollution, advantage of wide range of application.Hydrogen is widely used in fields such as chemistry, food, smelting, aviation, communications and transportation at present.Along with the expansion and the Hydrogen Energy growth of requirement of hydrogen range of application, each country accelerates the development research of Hydrogen Energy one after another.According to 2002 annual US Congress budget statements: in the research and development process of Hydrogen Energy, USDOE has proposed safety, efficient, economic and eco-friendly fundamental principle, with National Laboratory and colleges and universities' joint study and exploitation biomass hydrogen preparation practicability technology, calendar year 2001 and 2002 are dropped into the research and technology exploitation that about 5,000 ten thousand U.S. dollars are used for Hydrogen Energy altogether, drop into later on constantly, expect the year two thousand twenty and build up demonstration unit by the biomass continuous hydrogen production.China also begins to pay attention to the research and development of Hydrogen Energy, continues to increase dynamics of investment.
Biomass resource is abundant, is a kind of little renewable energy source of polluting, and it is very promising a kind of Hydrogen Energy development scheme to obtain hydrogen-rich combustion gas that biomass are carried out thermochemical treatment, has caused countries in the world investigators' generally attention.Biomass gasification technology obtains extensive studies and exploitation at home and abroad, but in the combustion gas that is obtained by common biomass gasification technology, the content of hydrogen is lower, as under the air gasification situation, has only 8-14vol%.
Biomass downdraft vapourizing furnace gasification has hydrogen content height, advantage that tar output is few.Utilize the downdraft vapourizing furnace to carry out biomass hydrogen preparation, and in gasification, add catalyzer, thus real estate hydrogen to greatest extent, and this method yet there are no report so far.
Summary of the invention
The object of the present invention is to provide a kind of method of biomass downdraft vapourizing furnace catalyzing manufacturing of hydrogen, hydrogen content height, tar output that this method makes are few.
Another object of the present invention is to provide the device of realizing aforesaid method.
The method of biomass downdraft vapourizing furnace catalyzing manufacturing of hydrogen provided by the invention, this method comprises the following steps:
(1) biomass enter vapourizing furnace through feeding screw from the top of downdraft vapourizing furnace reactor, after drying zone and pyrolysis zone, with the oxygen enrichment generating unit divided combustion reaction that feeds from vapourizing furnace throat;
(2) water vapor that produces in the vapour generator enters the reduction zone of vapourizing furnace, main coke tar cracking reaction, the gasification reaction of coke and the steam reforming reaction of biomass gasified gas of taking place under the effect of catalyzer;
(3) combustion gas of coming out from the vapourizing furnace bottom enters fixed bed catalytic reactor, carries out the reaction of further steam reformation and coke tar cracking, makes hydrogen-rich combustion gas, and hydrogen-rich combustion gas makes highly purified hydrogen through pressure swing adsorption again.
Working gas of the present invention is air (or oxygen enrichment) and water vapor, and biomass material is the animals and plants waste of certain particle size.Downdraft vapourizing furnace reactor comprises drying zone, pyrolysis zone, combustion zone and reduction zone.The coke tar cracking catalyst for reaction is the natural crystal rhombspar, places downdraft vapourizing furnace reactor bottom, and the catalyzer of steam reforming reaction is a nickel-base catalyst, places fixed bed catalytic reactor, and the hydrogen-rich combustion gas hydrogen of generation is more than 60%.
Be used to realize that the device of method of the present invention comprises:
A downdraft vapourizing furnace reactor, this reactor comprises drying zone, pyrolysis zone, combustion zone and reduction zone;
Feeding screw and feed bin, feeding screw is connected with feed bin, and feed bin is located at the top of downdraft vapourizing furnace reactor;
An oxygenerator, oxygenerator links to each other with downdraft vapourizing furnace reactor by blast pipe;
A vapour generator, the water vapor that vapour generator produces feeds the bottom of downdraft vapourizing furnace reactor;
An ash bucket is positioned at the bottom of downdraft vapourizing furnace reactor;
A fixed bed catalytic reactor, this reactor links to each other with the bottom of downdraft vapourizing furnace reactor.
The inventive method has following outstanding advantage and positively effect:
1, reactions such as Biomass Catalytic Gasification, catalytic cracking of tar, carbon and the conversion of CO water vapor are carried out integratedly, and the heat that makes thermopositive reaction is that thermo-negative reaction is used, does not need external heat source, has improved Wood Adhesives from Biomass rate and energy utilization efficiency.
2, the tar that produces in the biomass gasification process obtains cracking fully at the vapourizing furnace bottom, and the combustion gas that enters fixed-bed reactor is clean, and is comparatively favourable to prolonging the fixed bed catalytic reactor life of catalyst.
3, no waste water, waste gas and waste sludge discharge do not damage environment.
4, utilize biomass to produce hydrogen, raw material is renewable, has realized the sustainable use of resource-energy-environmental integration.
Description of drawings
Fig. 1 is the device synoptic diagram of biomass downdraft vapourizing furnace catalyzing manufacturing of hydrogen of the present invention.
Embodiment
As shown in Figure 1, biomass in the feed bin 2 (as pine powder) enter vapourizing furnace through feeding screw 1 from the top of downdraft vapourizing furnace reactor 3, after drying zone and pyrolysis zone, with the oxygen enrichment generating unit divided combustion reaction that feeds from vapourizing furnace throat, oxygen enrichment is supplied with by the oxygenerator 4 that links to each other with vapourizing furnace 3; The water vapor that produces in the vapour generator 5 enters the reduction zone of vapourizing furnace 3, the main coke tar cracking that takes place reacts, the gasification reaction of coke and the steam reforming reaction of biomass gasified gas, wherein the coke tar cracking catalyst for reaction is the natural crystal rhombspar, and the catalyzer of steam reforming reaction is a nickel-base catalyst; The combustion gas of coming out from vapourizing furnace 3 bottoms is through ash disposal, dust is accumulated in discharging regularly in the ash bucket 6, combustion gas after the ash disposal enters fixed bed catalytic reactor 7, carry out the reaction of further steam reformation and coke tar cracking, make hydrogen-rich combustion gas, hydrogen-rich combustion gas makes highly purified hydrogen through pressure swing adsorption again.
Be used to realize that the device of method of the present invention comprises:
A downdraft vapourizing furnace reactor 3, this reactor 3 comprises drying zone, pyrolysis zone, combustion zone and reduction zone;
Feeding screw 1 and feed bin 2, feeding screw 1 is connected with feed bin 2, and feed bin 2 is located at the top of downdraft vapourizing furnace reactor 3;
An oxygenerator 4, oxygenerator 4 links to each other with downdraft vapourizing furnace reactor 3 by blast pipe;
A vapour generator 5, the water vapor that vapour generator 5 produces feeds the bottom of downdraft vapourizing furnace reactor 3;
An ash bucket 6 is positioned at the bottom of downdraft vapourizing furnace reactor 3;
A fixed bed catalytic reactor 7, this reactor 7 links to each other with the bottom of downdraft vapourizing furnace reactor 3.

Claims (4)

1, a kind of method of biomass downdraft vapourizing furnace catalyzing manufacturing of hydrogen, this method comprises the following steps:
(1) biomass enter vapourizing furnace through feeding screw from the top of downdraft vapourizing furnace reactor, after drying zone and pyrolysis zone, with the oxygen enrichment generating unit divided combustion reaction that feeds from vapourizing furnace throat;
(2) water vapor that produces in the vapour generator enters the reduction zone of vapourizing furnace, main coke tar cracking reaction, the gasification reaction of coke and the steam reforming reaction of biomass gasified gas of taking place under the effect of catalyzer;
(3) combustion gas of coming out from the vapourizing furnace bottom enters fixed bed catalytic reactor, carries out the reaction of further steam reformation and coke tar cracking, makes hydrogen-rich combustion gas, and hydrogen-rich combustion gas makes highly purified hydrogen through pressure swing adsorption again.
2, the method for biomass downdraft vapourizing furnace catalyzing manufacturing of hydrogen according to claim 1 is characterized in that: described biomass are the animals and plants waste of certain particle size.
3, the method for biomass downdraft vapourizing furnace catalyzing manufacturing of hydrogen according to claim 1, it is characterized in that: described coke tar cracking catalyst for reaction is the natural crystal rhombspar, the catalyzer of steam reforming reaction is a nickel-base catalyst.
4, a kind of device that is used to realize the method for claim 1, this device comprises:
A downdraft vapourizing furnace reactor (3), this reactor comprises drying zone, pyrolysis zone, combustion zone and reduction zone;
A feeding screw (1) and feed bin (2), feeding screw (1) is connected with feed bin (2), and feed bin (2) is located at the top of downdraft vapourizing furnace reactor (3);
An oxygenerator (4), oxygenerator (4) links to each other with downdraft vapourizing furnace reactor (3) by blast pipe;
A vapour generator (5), the water vapor that vapour generator (5) produces feeds the bottom of downdraft vapourizing furnace reactor (3);
An ash bucket (6) is positioned at the bottom of downdraft vapourizing furnace reactor (3);
A fixed bed catalytic reactor (7), this reactor (7) links to each other with the bottom of downdraft vapourizing furnace reactor (3).
CNB2003101117993A 2003-10-16 2003-10-16 Method and apparatus for catalytic preparation of hydrogen by biomass down-draft gasifying stove Expired - Fee Related CN1214972C (en)

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CNB2003101117993A CN1214972C (en) 2003-10-16 2003-10-16 Method and apparatus for catalytic preparation of hydrogen by biomass down-draft gasifying stove

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CNB2003101117993A CN1214972C (en) 2003-10-16 2003-10-16 Method and apparatus for catalytic preparation of hydrogen by biomass down-draft gasifying stove

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101239317B (en) * 2008-03-18 2010-04-14 上海大学 Catalyst for dry gasification for moisture component of coke oven gas and preparation thereof
CN101475143B (en) * 2009-01-20 2011-01-05 中国科学技术大学 Biomass hydrogen production in water vapour atmosphere and series fluidized bed apparatus system thereof
CN102124083A (en) * 2008-08-15 2011-07-13 科诺科菲利浦公司 Two stage entrained gasification system and process
CN102159500A (en) * 2008-08-18 2011-08-17 辛吉斯特公司 Process for producing ammonia from biomass
CN102199449A (en) * 2011-04-22 2011-09-28 中国科学院广州能源研究所 Method for producing gas by oxygen enrichment and thermolysis of organic solid wastes
CN101560410B (en) * 2009-05-14 2012-08-29 安徽喜阳阳新能源科技有限公司 Counter flow type biomass gasification furnace
CN102874750A (en) * 2012-10-19 2013-01-16 安徽理工大学 Method for making hydrogen through pyrolytic gasification of biomass and coke under microwave field
CN103205281A (en) * 2013-03-29 2013-07-17 合肥德博生物能源科技有限公司 Gasification system of oxygen-enriched biomass circulating fluidized-bed
CN103569963A (en) * 2013-10-25 2014-02-12 常州大学 Device for increasing hydrogen yield in gas production process of biomass
CN103979491A (en) * 2014-05-20 2014-08-13 青岛理工大学 Method and device for producing hydrogen through blending and gasifying of sludge and biomass
CN104419469A (en) * 2013-08-27 2015-03-18 大连明佳金属制品有限公司 Biomass downdraft fixed bed gasifier heat supply system
CN106422557A (en) * 2016-11-01 2017-02-22 大唐环境产业集团股份有限公司 Filter element for removing biomass gasification tar, filter system and method
CN107282589A (en) * 2016-04-12 2017-10-24 王冬 House refuse cryogenic treatment process

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* Cited by examiner, † Cited by third party
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CN102322630B (en) * 2011-09-24 2014-03-19 刘伟奇 Method and devices for burning macromolecular matters efficiently and cleanly

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101239317B (en) * 2008-03-18 2010-04-14 上海大学 Catalyst for dry gasification for moisture component of coke oven gas and preparation thereof
CN102124083A (en) * 2008-08-15 2011-07-13 科诺科菲利浦公司 Two stage entrained gasification system and process
CN102124083B (en) * 2008-08-15 2014-02-26 拉默斯技术公司 Two stage entrained gasification system and process
US8679439B2 (en) 2008-08-18 2014-03-25 Syngest, Inc. Process for producing ammonia from biomass
CN102159500A (en) * 2008-08-18 2011-08-17 辛吉斯特公司 Process for producing ammonia from biomass
CN101475143B (en) * 2009-01-20 2011-01-05 中国科学技术大学 Biomass hydrogen production in water vapour atmosphere and series fluidized bed apparatus system thereof
CN101560410B (en) * 2009-05-14 2012-08-29 安徽喜阳阳新能源科技有限公司 Counter flow type biomass gasification furnace
CN102199449B (en) * 2011-04-22 2013-05-22 中国科学院广州能源研究所 Method for producing gas by oxygen enrichment and thermolysis of organic solid wastes
CN102199449A (en) * 2011-04-22 2011-09-28 中国科学院广州能源研究所 Method for producing gas by oxygen enrichment and thermolysis of organic solid wastes
CN102874750A (en) * 2012-10-19 2013-01-16 安徽理工大学 Method for making hydrogen through pyrolytic gasification of biomass and coke under microwave field
CN103205281A (en) * 2013-03-29 2013-07-17 合肥德博生物能源科技有限公司 Gasification system of oxygen-enriched biomass circulating fluidized-bed
CN104419469A (en) * 2013-08-27 2015-03-18 大连明佳金属制品有限公司 Biomass downdraft fixed bed gasifier heat supply system
CN103569963A (en) * 2013-10-25 2014-02-12 常州大学 Device for increasing hydrogen yield in gas production process of biomass
CN103979491A (en) * 2014-05-20 2014-08-13 青岛理工大学 Method and device for producing hydrogen through blending and gasifying of sludge and biomass
CN103979491B (en) * 2014-05-20 2016-07-06 青岛理工大学 A kind of method of mud and the blended gasification hydrogen-producing of biomass
CN107282589A (en) * 2016-04-12 2017-10-24 王冬 House refuse cryogenic treatment process
CN107282589B (en) * 2016-04-12 2019-04-05 王冬 House refuse cryogenic treatment process
CN106422557A (en) * 2016-11-01 2017-02-22 大唐环境产业集团股份有限公司 Filter element for removing biomass gasification tar, filter system and method

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Patentee before: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences

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Owner name: GUANGZHOU ZHONGKE HUANNENG SCIENCE CO., LTD.

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