Active coke adsorption tower and method for adsorbing and purifying flue gas by active coke

A technology of activated coke and adsorption tower, which is applied in the field of activated coke adsorption tower and activated coke adsorption and purification of flue gas, and can solve the problems of secondary pollution of ammonia and low adsorption capacity of activated coke.
CN110898607AActive Publication Date: 2020-03-24SINOPEC ENG +1
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SINOPEC ENG
Publication Date
2020-03-24

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Abstract

The invention relates to an active coke adsorption tower and a method for adsorbing and purifying flue gas by active coke. According to the active coke adsorption tower disclosed by the invention, anactive coke adsorption area and a gas buffer area are arranged; flue gas firstly enters the upper gas buffer area, so that the flue gas is adsorbed through cross-flow contact with active coke at the upper portion of the active coke adsorption area, and is subjected to horizontal flow baffling in the tower so as to penetrate through the active coke adsorption area multiple times to form multi-stageadsorption; the flue gas adsorbed at the upper portion is fed into the lower portion of the active coke adsorption area through a gas pipeline, and is subjected to cross-flow contact with the activecoke flowing down from the upper portion of the adsorption area and adsorbing sulfur oxide; H2SO4 converted in the desulfurization process is stored in the pores of the active coke on the lower portion, wherein the H2SO4-containing active coke has high reaction activity to ammonia and can completely capture excessive ammonia in flue gas so as to effectively control ammonia escape of purified fluegas and avoid secondary pollution of ammonia.
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Description

technical field

[0001] The present disclosure relates to the technical field of activated coke dry flue gas desulfurization, in particular to an activated coke adsorption tower and a method for activated coke adsorption and purification of flue gas. Background technique

[0002] The activated coke dry flue gas purification process began to be applied industrially in the 1980s. With the increasing environmental protection requirements, the activated coke dry flue gas purification process has outstanding advantages such as high desulfurization efficiency, simultaneous removal of multiple pollutants, no water consumption for reaction, no waste water and waste residue discharge, and no corrosion problems for system equipment. More and more attention has been paid to it, and the application of this process is becoming more and more extensive.

[0003] Activated coke has the functions of desulfurization, denitrification, dust removal and simultaneous removal of various pollutants...

Claims

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