Thermal stability salt inhibitor for desulfurization system, and solvent for removing sulfur dioxide

Abstract

The invention discloses a thermal stability salt inhibitor for a desulfurization system, and a solvent for removing sulfur dioxide, and belongs to the technical field of gas purification, wherein thethermal stability salt inhibitor comprises, by mass, 20-60% of a phenolic compound or a derivative thereof, 0.1-15% of an anthraquinone compound or a derivative thereof, and the balance of an amine compound or a derivative thereof. According to the invention, the thermal stability salt inhibitor comprises the phenolic compound and the derivative thereof, the organic amine compound and the derivative thereof, and the anthraquinone compound and the derivative thereof, so that the formation of the thermal stability salts such as sulfate can be remarkably reduced; and the generation amount of thethermal stability salt is remarkably reduced, so that even if the thermal stability salt is subjected to post-treatment, the energy consumption is remarkably reduced so as to avoid the pollution as much as possible.

Description

technical field [0001] The invention relates to the technical field of gas purification, in particular to a heat-stable salt inhibitor used in a desulfurization system and a solvent for removing sulfur dioxide. Background technique [0002] Sulfur dioxide pollution has become an important factor restricting my country's economic and social development, and the problem of air pollution caused by sulfur dioxide emitted by industrial flue gas has become increasingly serious. Air pollution not only endangers the growth of animals and plants, destroys the ozone layer, but also causes problems such as acid rain and the greenhouse effect. Therefore, desulfurization of flue gas is an effective means to control sulfur dioxide pollution. [0003] Currently, organic amine wet desulfurization process is usually used to remove sulfur dioxide. [0004] The inventor finds that there are following problems in the prior art: [0005] The organic amine wet desulfurization process will gene...

AI Technical Summary

Problems solved by technology

[0005] The organic amine wet desulfurization process will generate a large amount of heat-stable salt during the desulfurization process, and the heat-stable salt needs to be post-treated later, which consumes a lot of energy and is easy to cause pollution

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