Improved coke oven gas hydrogen extraction TSA treatment device and process thereof

Abstract

The invention discloses an improved coke oven gas hydrogen extraction TSA treatment device. The device comprises a separator, a pretreatment adsorption tower A, a pretreatment adsorption tower D, a regenerated gas steam heater, a pressure-equalizing inverted tower regenerated gas near-way valve, a heating regenerated gas valve, a cold blowing regenerated gas valve, a tower A coke-oven gas inlet valve, a tower A coke-oven gas outlet valve, a tower A pressure-equalizing valve, a tower A regenerated gas inlet valve, a tower A regenerated gas outlet valve, a tower A depressurized gas recovery program control valve, a tower B coke-oven gas inlet valve, a tower B coke-oven gas outlet valve, a tower B pressure equalizing valve, a tower B regenerated gas inlet valve, a tower B regenerated gas outlet valve and a tower B depressurized gas recovery program control valve; the depressurized gas recovery program control valve is used for recovering the coke oven gas discharged in the depressurization process after the pretreatment adsorption tower to be regenerated finishes the pressure equalizing and depressurization process, and meanwhile, the components of the desorption gas are stabilized to the maximum extent, so that the working condition adjustment of a using unit is facilitated; and a new research direction is provided for optimization and improvement of a coke oven gas hydrogen extraction TSA treatment process.

Description

technical field [0001] The invention belongs to the technical field of deep purification of coke oven gas, and in particular relates to an improved coke oven gas hydrogen extraction TSA treatment device and process. Background technique [0002] In the existing technology, the traditional coke oven gas hydrogen extraction TSA treatment process needs to regenerate the pretreatment adsorption tower. After the pressure equalization and depressurization process is completed, the remaining coke oven gas in the pretreatment adsorption tower is discharged to the analytical gas pipeline network through the depressurization process. , used as fuel gas, which will cause a waste of coke oven gas resources, the higher the pretreatment pressure is, the greater the waste will be, and because the composition of this part of gas is quite different from that of the analytic gas, the temporary working conditions of the analytic gas use units will not be correct Stablize. Contents of the inv...

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