Desulfurization and denitrification integral smoke gas purification treatment system and desulfurization and denitrification integral smoke gas purification treatment process

Abstract

The invention relates to a desulfurization and denitrification integral smoke gas purification treatment system and a desulfurization and denitrification integral smoke gas purification treatment process, in particular to an integral smoke gas purification treatment system and an integral smoke gas purification treatment process adopting seawater to realize desulfurization and denitrification. The system comprises a raw smoke gas input system, an absorption system and a clean smoke gas exhaust system in mutual connection, and also comprises a raw smoke gas oxidation system and a desulfurization and denitrification agent integral function system, wherein the raw smoke gas oxidation system is connected with the raw smoke gas input system, and the desulfurization and denitrification agent integral function system is connected with the absorption system. According to the process, the system is utilized for oxidizing the smoke gas, and then, the integral purification and absorption treatment is carried out. The system and the process provided by the invention have the advantages that the system setting and the technical flow process are simple and optimized, the integral smoke gas desulfurization and denitrification are realized, any other substance does not need to be added in the application process, except cyclically utilized seawater and air, the energy-saving and environment-friendly effects are obvious, the green and clean treatment of the smoke gas is realized, and the system and the process are suitable for being applied to the field of industrial tail gas purification treatment, particularly in regions with seawater application convenience, and are particularly suitable for being popularized and applied.

Description

technical field [0001] The invention relates to a desulfurization and denitrification integrated flue gas purification treatment system and its purification treatment process, in particular to a desulfurization and denitrification integrated flue gas purification treatment system and its purification treatment process by using seawater. Background technique [0002] At present, sulfur and nitrogen oxides (SO 2 , NOx), and there are many treatment technologies for these flue gas pollutants, such as: treatment of sulfur dioxide (SO 2 ), the limestone-gypsum method, the ammonia method, the double alkali method, the selective catalytic reduction (SCR) method, the selective non-catalytic reduction (SNCR) method, the low-nitrogen combustion method for the treatment of nitrogen oxides (NOx), or the above However, the complete removal of sulfur and nitrogen pollutants in the flue gas basically needs to be carried out in different devices, different sections and processes, and at th...

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Problems solved by technology

[0002] At present, sulfur and nitrogen oxides (SO 2 , NOx), and there are many treatment technologies for these flue gas pollutants, such as: treatment of sulfur dioxide (SO 2 ), the limestone-gypsum method, the ammonia method, the double alkali method, the selective catalytic reduction (SCR) method, the selective non-catalytic reduction (SNCR) method, the low-nitrogen combustion method for the treatment of nitrogen oxides (NOx), or the above However, the complete removal of sulfur and nitrogen pollutants in the flue gas basically needs to be carried out in different devices, different sections and processes, and at the same time, it takes up a lot of space and consumes a lot of energy and materials

[0003] In order to save energy, many flue gas purification devices installed on the seaside use cheap seawater for purification, which reduces a lot of construction costs and operating costs. However, there is no mature technology for seawater desulfurization devices to use seawater for flue gas denitrification treatment.

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