Acid gas absorption oxidization tower and method for operating same

Abstract

The invention relates to an acid gas absorption oxidization tower and a method for operating the same. The acid gas absorption oxidization tower comprises a tower, a surplus ammonia water spray device, a plurality of layers of fillers, a re-distributor and a catalyst layer. The surplus ammonia water spray device, the multiple layers of fillers, the re-distributor and the catalyst layer are sequentially arranged in the tower from top to bottom; a purified gas outlet is formed in the top of the tower, an acid gas inlet is formed in a side of the tower and is particularly formed in a position between the lowermost layer of fillers and the re-distributor, an ammonium sulfate solution storage tank is arranged at the bottom of the tower, an air inlet is formed in a side of the tower and is particularly formed in a position below the catalyst layer and above the ammonium sulfate solution storage tank, and an ammonium sulfate solution outlet is formed in a side of the bottom of the ammonium sulfate solution storage tank. The acid gas absorption oxidization tower and the method have the advantages that the acid gas absorption oxidization tower is simple in structure and convenient to operate and is used for absorbing and then oxidizing acid gas generated when desulfurization waste liquid is incinerated, and then preparing ammonium sulfate solution, accordingly, the traditional desulfurization waste liquid treatment technological processes can be simplified on the basis that the desulfurization waste liquid is treated, and the equipment investment can be saved.

Description

Technical field [0001] The invention relates to the technical field of acid gas treatment after incineration of desulfurization waste liquid, in particular to an acid gas absorption oxidation tower and a working method thereof. Background technique [0002] As a major coal country and a major steel country, my country has a large number of coking companies across the country, and the coal gas produced by these coking companies is rich in hydrogen sulfide. Whether this type of gas is used for industrial or civil use, it needs to be desulfurized. [0003] As an effective desulfurization process, HPF desulfurization is currently widely used in major coking enterprises. The process is an oxidation desulfurization process with good desulfurization effect. However, the desulfurization waste liquid produced by HPF desulfurization is difficult to deal with. Under the increasingly strict environmental supervision of the country, the treatment of desulfurization waste liquid has become the ...

AI Technical Summary

Problems solved by technology

However, this process has a long process and a large investment. It is very difficult for enterprises with limited scale and insufficient operating experience to launch this process.

Images