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Low-tar and low-phenolic-water multi-medium fixed bed gasifier

A fixed-bed gasifier and low-tar technology, applied in gasification process, gasification device details, petroleum industry, etc., can solve the problems of increasing the amount of cooling and scrubbing gas, increasing the difficulty of extraction, increasing the amount of phenol-containing wastewater treatment, etc., reaching The purification process is simple, and the effect of improving gasification efficiency and quality

Pending Publication Date: 2021-05-04
CCTEG CHINA COAL RES INST
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Problems solved by technology

Although the tar and phenol content in the product of the gasification section is relatively low, the tar content in the gas is also diluted when all of them are passed into the dry distillation section, which increases the difficulty of extraction; volume also increased accordingly

Method used

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  • Low-tar and low-phenolic-water multi-medium fixed bed gasifier

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0025] Such as figure 1 As shown, the low-tar, low-phenol water multi-media fixed-bed gasifier provided in this embodiment includes: a furnace body 2, a feed inlet 1 is arranged at the upper end of the furnace body, and a slagging outlet 10 is arranged at the bottom of the furnace body 2, through which It discharges the condensed slag out of the gasifier.

[0026] In the embodiment of the present invention, a membrane water-cooled wall 3 arranged along the axial direction of the furnace body 2 is arranged inside the furnace body 2 . An annular cavity is formed between the side wall of the membrane water cooling wall 3 and the side wall of the furnace body 2, and a steady flow gas spray gun 15 and a small high t...

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Abstract

The invention discloses a low-tar and low-phenolic-water multi-medium fixed bed gasifier which comprises a gasifier body; a feeding inlet is formed in the upper end of the gasifier body, and a slag discharging outlet is formed in the bottom of the gasifier body; a membrane type water cooling wall arranged in the axial direction of the gasifier body is arranged in the gasifier body, the membrane type water cooling wall is located on the upper portion of the gasifier body, and an annular cavity is formed between the side wall of the membrane type water cooling wall and the side wall of the gasifier body. A steady-flow gas spray gun and a small high-temperature gas outlet are arranged on the side wall of the membrane type water cooling wall in the circumferential direction; a gasifying agent nozzle is arranged on the side wall of the lower part of the gasifier body; and the lower part of the gasifier body is fixedly connected with a slag bath. By utilizing the method, the gasification efficiency can be effectively improved, and the content of tar and phenol water of the fixed bed is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of gasification furnaces, in particular to a low-tar, low-phenol water multi-media fixed-bed gasification furnace. Background technique [0002] In the traditional fixed-bed gasifier, a coal / organic solid waste / biomass inlet and a gas outlet are installed on the top, and the lump coal / organic solid waste / biomass is added through the feeding inlet, and the high-temperature gas generated by gasification is exchanged countercurrently. Heat, from top to bottom through drying, dry distillation, gasification and finally oxidative combustion. The resulting mixture of gasification gas, tar and water vapor is discharged from the gas outlet. [0003] In the actual production process, although the fixed bed gasifier uses lump coal / organic solid waste / biomass as feed material, due to the entrainment of coal / organic solid waste / biomass powder or the particle size of lump coal / organic solid waste / biomass is not up to the...

Claims

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Application Information

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IPC IPC(8): C10J3/20C10J3/72C10J3/74C10J3/76
CPCC10J3/20C10J3/72C10J3/74C10J3/76C10J2200/152C10J2300/0916C10J2300/093C10J2300/0946C10J2300/0956C10J2300/0959C10J2300/0969C10J2300/0976
Inventor 王学云读刚郭良元张永刚徐春霞臧雪晶赵渊陈江明李阳关北锋张帆
Owner CCTEG CHINA COAL RES INST
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