Coal gas cleaning process

A gas washing and process technology, which is applied in the petroleum industry, combustible gas purification, combustible gas purification/reconstruction, etc., can solve the problems of high dust content in washing water, excessive gas waste heat, and easy blockage of equipment, so as to prevent sewage from being forced to Emission problems, saving settlement volume and reducing cost
CN1850951AActive Publication Date: 2006-10-25ๅˆ˜้‡‘ๆˆ
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ๅˆ˜้‡‘ๆˆ
Publication Date
2006-10-25

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Abstract

The invention relates to a coal gas washing cooling technology that includes the following steps: the dust and vapor containing coal gas passing through washing tower to reversely contact with washing hot water, the washing waste water flowing into tank after deposition, and pumping into washing tower to take recycling using; the washed gas could come into cooling tower to contact with cold water and flow out from the top of the tower, the waste water flowing into tank and pumping into cooling water tower to separate into three channels, one pumping back to the cooling tower, another coming into hot water pool and the other would be discharged from the system. The invention could save invest over 80%, and improve the utilization factor of primal water. It has great social and economic benefits.
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Description

technical field

[0001] The invention relates to a dedusting and cooling process, in particular to a washing and cooling process for dust-containing, moisture-containing gas or semi-water gas. technical background

[0002] In the process of producing water gas or semi-water gas by reacting anthracite and water vapor, the temperature of the gas or semi-water gas produced by the gasifier is generally 110-160ยฐC after sensible heat recovery, and contains more than 0.3Nm 3 / (m 3 Coal gas) around the water vapor, while entraining quite a lot of coal powder and other particles, it needs to be cooled and washed to meet the process requirements. Currently used cooling and washing processes such as figure 1 As shown, the process is that the gas or semi-water gas enters the washing tower 1 and contacts with the washing water added from the top of the tower. The dust in the gas is washed by the washing water and then enters the washing water, and the sensible heat is absorbed by the wa...

Claims

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