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High-temperature solid fuel gasification device

A fuel gasification and high-temperature solid technology, which is applied in the manufacture of combustible gas, energy input, petroleum industry, etc., can solve the problems of tar generation, achieve the effects of preventing surface carbon, promoting tar cracking, and increasing residence time

Inactive Publication Date: 2010-11-10
CHONGQING UNIV
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Problems solved by technology

[0005] In order to solve the problem of tar generation in gasification and improve gasification efficiency, the present invention provides a high-temperature solid fuel gasification device that integrates heat recovery, catalysis, and catalyst regeneration, and can achieve high efficiency and low tar

Method used

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Accompanying drawing is the sectional view of the present invention, as shown in the figure: high-temperature solid fuel gasification device comprises furnace body 1, four-way switching valve 2, left honeycomb ceramics 3, right honeycomb ceramics 4 and symmetrically arranged at the bottom of furnace body 1 And the left regenerator 7 and the right regenerator 8 of the hollow structure communicated with the furnace body 1 . The furnace body 1 is supported on a bracket 10 , the top of the furnace body 1 is provided with a feed valve 11 , and the bottom is provided with an ash discharge valve 12 . The axes of the hollow holes of the left regenerator 7 and the right regenerator 8 are vertically arranged with the furnace wall of the furnace body 1, the left honeycomb ceramics 3 are arranged in the left regenerator 7, and the right ho...

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Abstract

The invention discloses a high-temperature solid fuel gasification device which comprises a hearth body, a four-way changeover valve and a left honeycomb ceramic and a right honeycomb ceramic oppositely arranged at the lower part of the hearth body, wherein one end of the four-way changeover valve is a gasification agent inlet end, one end is a produced gas outlet end, one end of the rest two ends is communicated with the left honeycomb ceramic, and the other end is communicated with the right honeycomb ceramic; and a nickel-based catalyst layer is coated in honeycomb holes of the left honeycomb ceramic and the right honeycomb ceramic. The honeycomb ceramic can stay in two states; when one honeycomb ceramic is heated, the other one is a heating gasification agent. The states of the two honeycomb ceramics are switched through the four-way changeover valve, the waste heat of a produced gas can be recycled smoothly, the gasification agent is heated to increase the temperature of a gasification area in the blast hearth, and the tar content is efficiently reduced. Meanwhile, the retention period of the produced gas can be prolonged, and tar cracking is promoted. The tar in the produced gas can be catalytically cracked by the nickel-based catalyst in the honeycomb ceramics.

Description

technical field [0001] The invention relates to a fuel gasifier, in particular to a high-temperature solid fuel gasification device. Background technique [0002] Biomass is an important renewable energy source. It is utilized by direct combustion, which not only has a relatively low utilization efficiency, but also causes some pollution, such as smoke and dust. Biomass gasification is the conversion of biomass fuel into combustible gas under low oxygen conditions, thereby indirectly utilizing biomass energy. The combustible gas obtained from this gasification is more convenient to burn and utilize than biomass fuel, with higher efficiency and relatively clean. [0003] Biomass gasification is an important part of the current biomass energy utilization, and it is responsible for converting biomass solid fuels into gaseous fuels and chemical raw materials. In the current gasification process, the problem of excessive tar content inevitably occurs. Various devices have been...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/20C10J3/22C10J3/64C10J3/72C10J3/84
CPCY02P20/129
Inventor 冉景煜黎柴佐
Owner CHONGQING UNIV
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