CN105623738A - Method for generating chemical engineering synthetic gas through gasifying biomass - Google Patents
Method for generating chemical engineering synthetic gas through gasifying biomass Download PDFInfo
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- CN105623738A CN105623738A CN201410587809.9A CN201410587809A CN105623738A CN 105623738 A CN105623738 A CN 105623738A CN 201410587809 A CN201410587809 A CN 201410587809A CN 105623738 A CN105623738 A CN 105623738A
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- biomass
- gas
- chemical engineering
- gasification
- synthetic gas
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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
Abstract
The invention discloses a method for generating chemical engineering synthetic gas through gasifying biomass. The method comprises the following steps: processing a biomass raw material to prepare particles, gasifying the particles through using a two-stage fixed bed updraft gasifier at a gasifier drying layer temperature of 110-245DEG C, a pyrolysis layer temperature of 335-556DEG C and a combustion layer temperature of 800-900DEG C with an oxygen and water vapor mixed gas as a gasifying agent to prepare crude biomass combustion gas, dedusting the crude biomass combustion gas, decoking the dedusted crude biomass combustion gas, washing the decoked crude biomass combustion gas, and desulphurizing the washed crude biomass combustion gas to prepare the chemical engineering synthetic gas with the gas component, the sulfur content, the ash content and the tar content meeting requirements of ammonia, urea and other chemical engineering raw materials. The chemical engineering synthetic gas produced from the biomass can be used to substitute natural gas as a chemical engineering raw gas, the gasification efficiency of the chemical engineering synthetic gas reaches up to 84%, the carbon conversion rate reaches up to 90%, 1Kg of the biomass raw material particles are gasified to generate 1.5Nm<3> of chemical engineering synthetic gas, and a new raw material source is provided for synthesis enterprises of ammonia, urea and other chemical engineering products.
Description
Technical field
The invention belongs to chemical process field, be specifically related to a kind of method that gasification of biomass generates chemical industry synthesis gas.
Background technology
Gasification of biomass generates the method for chemical industry synthesis gas and at least includes the basic processes such as gasification of biomass, gas-purification, desulfurization. Generating in the method for chemical industry synthesis gas at current gasification of biomass, technological process is not easy to implement, and separation efficiency is low, it is impossible to achieve the recycling of catalyst, and manufacturing process is complicated, and production efficiency is low.
Summary of the invention
For the above-mentioned technical problem overcoming prior art to exist, it is an object of the invention to, thering is provided a kind of method that gasification of biomass generates chemical industry synthesis gas, the present invention not only manufacturing process is simple, improve work efficiency, and achieves the recycling of catalyst.
Gasification of biomass provided by the invention generates the method for chemical industry synthesis gas, comprises the following steps:
(1) it be 13��25mm, length is the granule of 55��75mm that biomass material is made diameter;
(2) biomass material making granule is put into pyrolytic gasification in gasification furnace, controlling gasification furnace drying layer temperature is 110��245 DEG C, pyrolytic layer temperature is 335��556 DEG C, burning zone temperature is 800��900 DEG C, with the mixing gas of oxygen and steam for gasifying agent in gasification, make biomass rough gas;
(3) biomass rough gas is sent into dedusting in cyclone dust extractor, be then fed in heat exchanger with sending into removing tar and dust, gained biomass rough gas tar content��0.4mg/Nm3 in series connection electric coke catcher after softening water heat exchange;
(4) biomass rough gas removing tar and dust is sent into washing in scrubbing tower, remove the trickle ionized impurity in biomass rough gas, gained biomass rough gas content of ashes��2mg/Nm3;
(5) biomass rough gas washed is imported removing free moisture in steam-water separator, it is thus achieved that biomass finished gas, subsequently into air accumulator;
(6) by the biomass finished gas in air accumulator by dry desulfurization and fine de-sulfur combination desulfurization method desulfurization to H2S��0.2mg/Nm3, described dry desulfurization is with ferrum oxide for desulfurizing agent, and described fine de-sulfur is hydrogenated to catalyst with cobalt molybdenum, with zinc oxide for desulfurizing agent.
Gasification of biomass provided by the invention generates the method for chemical industry synthesis gas, and it has the beneficial effects that, overcoming prior art, to prepare operation in the technical process of chemical industry synthesis gas more, and the problem that workload is big improves work efficiency; Improve the utilization rate of catalyst.
Detailed description of the invention
Below in conjunction with an embodiment, the method that gasification of biomass provided by the invention generates chemical industry synthesis gas is described in detail.
Embodiment
The gasification of biomass of the present embodiment generates the method for chemical industry synthesis gas, comprises the following steps:
(1) it be 25mm, length is the granule of 75mm that biomass material is made diameter;
(2) biomass material making granule is put into pyrolytic gasification in gasification furnace, controlling gasification furnace drying layer temperature is 245 DEG C, and pyrolytic layer temperature is 335 DEG C, and burning zone temperature is 800 DEG C, with the mixing gas of oxygen and steam for gasifying agent in gasification, make biomass rough gas;
(3) biomass rough gas being sent into dedusting in cyclone dust extractor, be then fed in heat exchanger with sending into removing tar and dust in series connection electric coke catcher after softening water heat exchange, gained biomass rough gas tar content is 0.4mg/Nm3;
(4) biomass rough gas removing tar and dust being sent into washing in scrubbing tower, remove the trickle ionized impurity in biomass rough gas, gained biomass rough gas content of ashes is 2mg/Nm3;
(5) biomass rough gas washed is imported removing free moisture in steam-water separator, it is thus achieved that biomass finished gas, subsequently into air accumulator;
(6) by dry desulfurization and fine de-sulfur, the biomass finished gas in air accumulator being combined desulfurization method desulfurization is 0.2mg/Nm3 to H2S, described dry desulfurization is with ferrum oxide for desulfurizing agent, and described fine de-sulfur is hydrogenated to catalyst with cobalt molybdenum, with zinc oxide for desulfurizing agent.
Gasification of biomass generates the method for chemical industry synthesis gas, can directly utilize gasification of biomass and generate chemical industry synthesis gas, it is not necessary to be processed further, and operation is simple, and measurement data is accurate, it is easy to implement.
Claims (1)
1. the method that a gasification of biomass generates chemical industry synthesis gas, it is characterised in that: said method comprising the steps of:
(1) it be 13��25mm, length is the granule of 55��75mm that biomass material is made diameter;
(2) biomass material making granule is put into pyrolytic gasification in gasification furnace, controlling gasification furnace drying layer temperature is 110��245 DEG C, pyrolytic layer temperature is 335��556 DEG C, burning zone temperature is 800��900 DEG C, with the mixing gas of oxygen and steam for gasifying agent in gasification, make biomass rough gas;
(3) biomass rough gas is sent into dedusting in cyclone dust extractor, be then fed in heat exchanger with sending into removing tar and dust, gained biomass rough gas tar content��0.4mg/Nm3 in series connection electric coke catcher after softening water heat exchange;
(4) biomass rough gas removing tar and dust is sent into washing in scrubbing tower, remove the trickle ionized impurity in biomass rough gas, gained biomass rough gas content of ashes��2mg/Nm3;
(5) biomass rough gas washed is imported removing free moisture in steam-water separator, it is thus achieved that biomass finished gas, subsequently into air accumulator;
(6) by the biomass finished gas in air accumulator by dry desulfurization and fine de-sulfur combination desulfurization method desulfurization to H2S��0.2mg/Nm3, described dry desulfurization is with ferrum oxide for desulfurizing agent, and described fine de-sulfur is hydrogenated to catalyst with cobalt molybdenum, with zinc oxide for desulfurizing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587809.9A CN105623738A (en) | 2014-10-29 | 2014-10-29 | Method for generating chemical engineering synthetic gas through gasifying biomass |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410587809.9A CN105623738A (en) | 2014-10-29 | 2014-10-29 | Method for generating chemical engineering synthetic gas through gasifying biomass |
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| CN105623738A true CN105623738A (en) | 2016-06-01 |
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| CN201410587809.9A Pending CN105623738A (en) | 2014-10-29 | 2014-10-29 | Method for generating chemical engineering synthetic gas through gasifying biomass |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828455A (en) * | 2017-11-08 | 2018-03-23 | 安徽上元新型家居材料有限公司 | A kind of sketch plate production and waste utilization production line |
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2014
- 2014-10-29 CN CN201410587809.9A patent/CN105623738A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828455A (en) * | 2017-11-08 | 2018-03-23 | 安徽上元新型家居材料有限公司 | A kind of sketch plate production and waste utilization production line |
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Application publication date: 20160601 |