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Gasifying buck treatment system

A technology of gasification system and treatment system, which is applied in the field of gas-liquid treatment system for gasification gray water, and can solve problems such as the influence of normal operation of the gasification system, cumbersome operation, and prone to problems

Inactive Publication Date: 2004-07-21
THE NORTHWEST RES INST OF CHEM IND
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Problems solved by technology

For the treatment of gasification gray water, the system composed of flash evaporator, condenser and gas-liquid separator is mainly used to process gasification gray water, such as the treatment process of gasification washing black water reported in Chinese patent 98807311.0 and 94117093.4, but this The two patents cover a large number of processing equipment, the system is complex, the equipment investment is large, the operation is cumbersome, and problems are prone to occur, which will affect the normal operation of the gasification system

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  • Gasifying buck treatment system
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Embodiment Construction

[0012] This system is mainly composed of gas-liquid separators 1 and 2, settling tank 3, liquid-solid separator 4, storage tank 6, deoxidizer 7 and delivery pumps 5, 26, 27, 29. The gasified gray water 8 from the gasification system enters the system from the gas-liquid separator 1, and the temperature of the gasified gray water to be treated is 150°C-280°C; the pressure is 15-100atm (absolute).

[0013] The gasification gray water is flashed and cooled by the gas-liquid separator 1 and 2, and the flashed non-condensable gas is discharged from the top of the gas-liquid separator 1 and 2, and the two non-condensable gases 19 and 20 merge into a non-condensable gas flow 21 After that, return to the gasification system, or enter the acid gas treatment unit.

[0014] The liquid condensed on the upper part of the gas-liquid separator 1 and 2 is sent to the deaerator 7 through the pipelines 22 and 23, and the supplemented process water 24 enters the deaerator 7; the gray water coole...

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Abstract

A system for treating the ash-contained water generated by gasifying is composed of gas-liquid separators, setting tank, liquid-solid separator, storage tank, deoxidizing unit and 4 delivering pumps. Its process includes gas-liquid separating, flash evaporating, cooling the gas, separating uncondensed gas (Co, Co2, H2, HsS, COS and N2), concentrating, cooling, and further treating. Its advantages are simple system, low cost and easy operation.

Description

technical field [0001] The invention relates to a gas-liquid treatment system, in particular to a gas-liquid treatment system for gasifying gray water. Background technique [0002] Various industrial gasifiers, methods for producing synthetic raw gas, fuel gas and reducing gas are well known. The prepared gas is discharged from the gasifier, because the gasification raw material (such as coal, oil or other carbon-containing substances) contains various impurities (such as raw material ash) and the incomplete conversion of carbon in it, resulting in the formation of Gases carry various impurities. Chilling and washing processes are often used to cool and purify the raw gas. The resulting hot gray water contains 1.5% to 8.0% solids and a certain amount of soluble gases, such as CO, CO 2 、H 2 、H 2 S, COS, N 2 And other gases, and the temperature of these gray water reaches 150 ℃ ~ 280 ℃, carrying a lot of physical heat. How to effectively treat the gasification gray wate...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10K1/08
Inventor 贺根良门长贵孙辉袁慧徐红东
Owner THE NORTHWEST RES INST OF CHEM IND