Treatment process and treatment device for high-concentration hydrogen sulfide gas

Abstract

The invention provides a treatment process for high-concentration hydrogen sulfide gas which comprises the following steps: A) sequentially carrying out hydrogen peroxide spraying and dust removal onhydrogen sulfide waste gas to obtain dust-removed gas; with the concentration of hydrogen sulfide in the hydrogen sulfide waste gas being 100-1000 ppm; B) adsorbing the dedusted gas through purification equipment, discharging the gas, spraying a regeneration liquid to a purification filter layer saturated in adsorption for regeneration, and then performing the next round of adsorption, with the purification equipment comprising a plurality of purification filter layers, the purification filter layers being made of fibers or non-woven fabrics with basic functional groups on the surfaces, and the basic functional groups being one or more of amino groups, quaternary ammonium groups and pyridyl groups; and C) adding hydrogen peroxide into the sprayed regenerated liquid, and utilizing the regeneration liquid after reaction for the next round of spraying. The process can eliminate secondary pollution, protect the fiber structure of the purification filter layer from being damaged, and effectively prolong the service life of the purification filter layer. The invention also provides a treatment device for high-concentration hydrogen sulfide gas.

Description

technical field [0001] The invention belongs to the technical field of air pollution prevention and control, and in particular relates to a treatment process and a treatment device for high-concentration hydrogen sulfide gas. Background technique [0002] With the continuous improvement of people's requirements for living environment, the problem of stench caused by various odors has been widely concerned and valued by various countries. Odor pollution is a kind of sensory pollution. It not only stimulates people's sensory organs and makes people feel disgusted, but also some harmful substances such as hydrogen sulfide (H2S) contained in odor 2 S) etc. are directly harmful to human health, so odor pollution has been considered as one of the six major public hazards next to noise. h 2 S is a gas with a highly irritating and suffocating smell of rotten eggs. In industrial production, H 2 The existence of S gas will cause problems such as equipment and pipeline corrosion and...

AI Technical Summary

Problems solved by technology

h 2 S is a gas with a highly irritating and suffocating smell of rotten eggs. In industrial production, H 2 The existence of S gas will cause problems such as equipment and pipeline corrosion and catalyst poisoning, while H in the environment 2 S gas will pose a serious threat to the personal safety of staff

[0003] H in gas 2 Common treatment methods for S include: combustion method, adsorption method, liquid absorption method, oxidation method, electrochemical method, biological method and combined process purification method, among which liquid absorption method and biological method have become the main methods for hydrogen sulfide treatment at present, but The biological method has disadvantages such as poor operation stability, long shutdown and recovery period, and large floor area; while the liquid absorption method is mainly sprayed with alkali solution in a spray tower, which has insufficient purification accuracy and absorbs hydrogen sulfide volatilized from sulfide in the liquid. will cause secondary air pollution

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