Coke oven gas recycling system

Abstract

The invention discloses a coke oven gas recycling system. The coke oven gas recycling system comprises an adsorption hydrogen production device, a fuel gas pressurization station, a combined heat andpower generation device, a polyvinyl chloride production device and a potash production device; hydrogen and analytical gas are produced from coke oven gas through the adsorption hydrogen production device, the analytical gas as fuel gas is supplied to the combined heat and power generation device, the polyvinyl chloride production device and the potash production device respectively through the fuel gas pressurization station and is used as fuel; the fuel gas pressurization station comprises a first water seal device, a gas holder, at least two second water seal devices, a booster fan and a second compressor, wherein the first water seal device is connected with the adsorption hydrogen production device, the gas holder is connected with the first water seal device, and the second water seal devices, the booster fan and the second compressor are connected with the gas holder. The coke oven gas recycling system has the advantages that the analytical gas generated during coke oven gas hydrogen production is pressurized by the fuel gas pressurization station and used as the fuel, thereby not only reducing the use amount of fuel natural gas in a corresponding material production deviceand having good economic benefits, but also improving the utilization rate of the coke oven gas and achieving the comprehensive utilization of resources and the high efficiency of recycling.

Description

technical field [0001] The invention relates to the technical field of resource comprehensive utilization of chemical products, in particular to a coke oven gas recovery and utilization system. Background technique [0002] Coke oven gas is a by-product produced during the coking process of the coke plant. For every 1 ton of coke refined, 430m 3 Left and right coke oven gas, the composition of coke oven gas is relatively complex, and the yield and composition vary due to the quality of coking coal and the coking process, mainly including H 2 、CH 4 , CO, N 2 , CO 2 、C m h n , O 2 , and naphthalene, tar, crude benzene, hydrogen sulfide, hydrogen cyanide and other substances. [0003] If the coke oven gas is directly discharged or directly burned and discharged through a torch, it will cause waste of resources and pollute the atmosphere. Contents of the invention [0004] The object of the present invention is to provide a coke oven gas recovery and utilization system...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a coke oven gas recovery and utilization system, which is used to solve the problems of resource waste and air pollution caused by coke oven gas discharge

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