Device and method for preparing hydrogen-rich synthesis gas by using lignite and biomass as fuel

A fuel preparation and biomass technology, applied in chemical instruments and methods, granular/powdered fuel gasification, and combustible gas production, can solve the problems of low gasification efficiency, low pollution, and difficult operation, and achieve the goal of device structure Compactness, low process cost, and reduced energy consumption

Active Publication Date: 2018-05-15
SOUTHEAST UNIV
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Problems solved by technology

The fixed bed structure is simple and the cost is low, but the gasification efficiency is not high and the pollution is serious; the heat and mass transfer efficiency of the bubbling fluidized bed is high, but due to the complex gas-solid flow characteristics, the quality of the syngas produced is low and the hydrogen content is low; the gas flow The bed has the advantages of low pollution and high carbon conversion rate, but at the same time has the disadvantages of harsh gasification conditions, high cost and difficult operation.

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  • Device and method for preparing hydrogen-rich synthesis gas by using lignite and biomass as fuel

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Embodiment Construction

[0030] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Such as figure 1 As shown, the device for preparing hydrogen-rich synthesis gas with lignite and biomass as fuel in the embodiment of the present invention includes: solid feeder I, fuel reactor II, hydrogen production reactor III, flow sealing valve IV and gas regulation Device V. The outlet of the solid feeder I is connected to the lower first inlet of the fuel reactor II, the upper first outlet of the fuel reactor II is connected to the synthesis gas inlet of the gas regulator V, and the upper second outlet of the fuel reactor II It is connected with the upper inlet of the hydrogen production reactor III, the lower first outlet of the hydrogen production reactor III is connected with the lower second inlet of the fuel reactor II through the flow sealing valve IV, and the upper second outlet of the hydrogen production reactor III is ...

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Abstract

The invention discloses a device for preparing hydrogen-rich synthesis gas by using lignite and biomass as fuel. The device includes: a solid feeder, a fuel reactor, a hydrogen production reactor, a flow sealing valve and a gas regulator; The outlet of the feeder is connected to the first inlet of the lower part of the fuel reactor, the first outlet of the upper part of the fuel reactor is connected to the synthesis gas inlet of the gas regulator, and the second outlet of the upper part of the fuel reactor is connected to the upper part of the hydrogen production reactor The inlet is connected, the lower first outlet of the hydrogen production reactor is connected with the lower second inlet of the fuel reactor through a flow sealing valve, and the upper second outlet of the hydrogen production reactor is connected with the hydrogen inlet of the gas regulator. A method of producing a hydrogen-enriched synthesis gas is also provided. The device and method can be used to continuously prepare synthesis gas rich in hydrogen in different proportions.

Description

technical field [0001] The invention belongs to the field of solid fuel pyrolysis, gasification and hydrogen production, and specifically relates to a device and method for preparing hydrogen-rich synthesis gas by using lignite and biomass as fuel. Background technique [0002] Lignite is the coal with the shallowest degree of coalification. It has the characteristics of high moisture and low calorific value, which greatly limits the application range. Biomass is also difficult to clean effectively because of its high oxygen content and high water content. The high volatility and high reactivity of lignite and biomass make them high-quality raw materials for gasification, and because lignite and biomass contain high moisture, if the moisture is used as the gasification of lignite and biomass gasification Factor, can effectively reduce energy consumption, reduce production costs. [0003] Gasification technology is an advanced technology that converts solid low calorific va...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C10J3/56C10J3/82C10J3/72C01B3/10
CPCY02E60/36Y02P20/145
Inventor肖睿曾骥敏张会岩陈星
OwnerSOUTHEAST UNIV