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Treatment technology for preparing combustion gas by using biomass fixed-bed gasifier

A fixed-bed gasifier and treatment process technology, applied in gasification process, combustible gas production, combustible gas purification, etc., can solve the problem that tar cannot be processed, and achieve good cooling effect, cost reduction, and large cooling area

Active Publication Date: 2018-03-02
广州环渝能源科技有限公司
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Problems solved by technology

[0008] Aiming at the defects of the prior art, the present invention provides a treatment process for the preparation of fuel gas by a biomass fixed-bed gasifier, which can well solve the problem that the tar produced during the preparation of fuel gas by a biomass gasifier cannot be processed

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  • Treatment technology for preparing combustion gas by using biomass fixed-bed gasifier
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  • Treatment technology for preparing combustion gas by using biomass fixed-bed gasifier

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Embodiment 1

[0038] This embodiment provides a treatment process for preparing fuel gas in a biomass fixed-bed gasifier, which includes:

[0039] S1. Biomass raw materials are pyrolyzed and gasified in a fixed-bed gasifier to produce gas, and during the process of preparing gas, the grate is cooled by circulating water.

[0040]S2. Purify and remove dust from the gas: the gas enters from one end of the U-shaped gas channel, the temperature of the gas decreases, and the tar component contained in it condenses on the inner wall of the partition or the box, and at the same time captures the dust and tar accumulated in the gas After reaching a certain level, under the action of its own weight, it falls into the water at the bottom of the tank and is discharged from the discharge hole; the purified gas is discharged from the other end of the U-shaped gas channel.

[0041] S3. Put the tar in the gas purification device into the furnace body through the tar circulation pipeline for another reacti...

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Abstract

The invention provides a treatment technology for preparing combustion gas by using a biomass fixed-bed gasifier. The technology comprises the following steps: S1, carrying out pyrolysis gasificationon a biomass raw material in the biomass fixed-bed gasifier to prepare combustion gas, wherein the gasifier comprises a gasifier body and a grate which are longitudinally arranged, the grate is arranged at the bottom of the gasifier body, and the gasifier body is provided with a feeding pipeline; S2, carrying out purification dedusting on the combustion gas: introducing the combustion gas into a gas purifier, and carrying out purifying treatment to obtain tar and purified combustion gas; and S3, adding the tar in the gas purifier into the gasifier body, and reacting the tar again. The technology has the advantages of realization of thorough tar removal without reducing the output yield, great reduction of the pollution to the environment, and solving of the production cost problem.

Description

technical field [0001] The invention relates to a treatment process for preparing fuel gas in a biomass fixed-bed gasification furnace. Background technique [0002] The raw materials for the gas produced by the biomass gasifier are crop stalks, forest waste, etc. This kind of gas is a green new energy with strong vitality, renewability, low pollution and wide distribution. The use of biomass as an alternative energy source is of great significance to low-carbon emission reduction, reduction of "greenhouse effect" and improvement of atmospheric acid rain environment. Biomass gasification system is to use biomass to burn in a closed anoxic furnace in a gasifier, and produce combustible gas after dry distillation, pyrolysis and thermochemical oxidation. [0003] Chinese patent application 201110385439.7 discloses a fixed-bed biomass gasification process and equipment for graded collection of tar. A high-temperature filter and dust collector connected to the gasifier is instal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/34C10J3/72C10J3/84C10K1/04
CPCC10J3/34C10J3/72C10J3/84C10J2300/092C10J2300/0926C10J2300/1807C10K1/046
Inventor 马培碧陈建平杨国发谢天恩
Owner 广州环渝能源科技有限公司
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