Detoxifying treatment method and device of tail gas containing H2S with low concentration

Abstract

The invention discloses a detoxifying treatment method and a detoxifying treatment device of tail gas containing H2S with low concentration. The detoxifying treatment method comprises the following steps: contacting the tail gas containing H2S with low concentration with a catalytic agent in a catalytic agent mixer firstly so as to enable H2S to be activated, mixing activated tail gas with combustion flue gas, carrying out thermal decomposition reaction to generate SO2 and H2O, and finally enabling the mixed gas to enter a conventional desulfurization treatment working procedure to complete the detoxifying treatment. The device comprises the catalytic agent mixer, a flue gas intake pipe, a tail gas intake pipe and a gas exhaust pipe of the mixer; the catalytic agent mixer comprises a mixer body, a pore plate and a catalytic agent net; the pore plate separates the mixer body into a first chamber and a second chamber; the flue gas intake pipe extends into the second chamber; the catalytic agent net is positioned between the flue gas intake pipe and the first chamber. The method provided by the invention can be effectively used for removing the H2S with low concentration contained in the tail gas, is high in safety, has good effects, and is stable; the device provided by the invention can generate negative pressure and promote the reaction, and is simple and convenient.

Description

technical field [0001] The invention relates to a non-toxic treatment of toxic tail gas, in particular to a low-concentration H 2 A non-toxic treatment method and device for tail gas of S gas. Background technique [0002] Precipitated barium sulfate is an important branch of the barium salt industry and has always played an irreplaceable role in the national economy. Especially in recent years, with industrial upgrading and structural adjustment, precipitated barium sulfate, especially high-quality precipitated barium sulfate, has been widely used. For example, it can be applied to high-end coatings (automobiles, aerospace, ships, etc.), engineering plastics modification ( Modified PE, modified PP, modified ABS, etc.), energy-saving energy storage materials (high-energy batteries), electronic materials (such as integrated circuit printing), friction materials (low thermal resistance, low wear materials) and many other new materials and technology fields, It provides a hug...

AI Technical Summary

Problems solved by technology

Precipitated barium sulfate industry has a long history in my country. Relying on my country's rich barium ore (barite) resources (total reserves account for 80% of the world), my country has always been a big producer of barium sulfate. Foreign technology blockade, the products are mainly low-end crude products, large but not strong, high resource consumption, energy consumption, serious environmental pollution, is an industry that urgently needs transformation, upgrading and structural adjustment

In recent years, due to the dual promotion of national industrial policies and environmental protection policies, various enterprises and institutions have invested heavily in manufacturing technology and product performance and achieved a large number of results, but there has been no major breakthrough in environmental protection management, especially toxic Weak gas governance leads to many safety accidents every year

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