A kind of desulfurization and denitrification agent and its preparation method and application

Abstract

The invention discloses a desulfuration and denitration agent which comprises the following ingredients by weight percentage: 1-15% of cyanuric acid, 1-15% of cosolvent, 1-20% of catalyst, 0-10% of chelating agent, 1-20% of stabilizer and 50-95% of water, wherein the catalyst is one or more of sodium hypochlorite, calcium hypochlorite, trichloroisocyanuric acid, sodium dichloroisocyanurate, sodium chlorite, sodium chlorate and dibromohydantoin. The invention further discloses a method of using the desulfuration and denitration agent for desulfuration and denitration. The desulfuration and denitration agent is low in cost, and simple and easy to obtain, can achieve the efficient desulfuration and denitration at a low temperature, avoids the problem of secondary pollution caused by the denitration using gas generated by high temperature pyrolyzing, and is suitable for large-scale application.

Description

technical field [0001] The invention relates to the field of exhaust gas desulfurization and denitrification, in particular to a desulfurization and denitrification agent and its preparation method and application. Background technique [0002] With the development of our country's economy, the environmental pollution caused by energy consumption is becoming more and more serious. Among them, atmospheric smoke and dust, acid rain, greenhouse effect and destruction of the ozone layer have become the four major killers that endanger people's survival. Harmful substances such as soot, sulfur dioxide, nitrogen oxides and other harmful substances contained in the waste gas produced by industrial combustion are the main sources of air pollution, acid rain and greenhouse effect. Therefore, dust removal, desulfurization and denitrification have become the subject of waste gas treatment today. At present, most technologies treat desulfurization and denitrification separately, which...

AI Technical Summary

Problems solved by technology

At present, most technologies treat desulfurization and denitrification separately, which not only increases investment in fixed equipment but also increases operating costs

And for denitrification, the existing denitrification technologies are mainly SCR and SNCR technologies. These two technologies use ammonia gas to react with nitrogen oxide compounds to remove nitrogen oxide compounds, so ammonia gas will be involved in the use process, and it is in the Under high temperature conditions, it is relatively easy to cause safety hazards, and the fixed investment and operating costs of these two technologies are relatively high, and key equipment and catalysts and other raw materials must be imported. These factors seriously restrict the cost of denitrification and seriously restrict our country. The cost of air governance

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