METHOD OF INHIBITING FORMATION OF DIOXINS AND DIOXIN-LIKE COMPOUNDS IN SOLID WASTE INCINERATION FLUE GAS

摘要

The present invention relates to a method for inhibiting the formation of dioxin-like compounds in solid waste incineration flue gases, belonging to the field of cleaning of solid waste incineration flue gases. In accordance with the present invention, when incineration flue gases cool down to 500˜450° C., the flue gases are introduced into an inhibition reactor where copper chlorides in flue gas particulates mix and react with inhibitors to convert into copper metaphosphate so as to inactivate the copper chlorides which can catalyze the formation of dioxin-like compounds and control dioxin-like compound pollutants in incineration flue gases at the source. Compared with the prior art, the invention can effectively control the main formation ways of dioxin-like compounds in solid waste incineration flue gases by optimizing inhibitors and reaction conditions. The method of the invention does not affect the residual heat utilization of solid waste incineration flue gases, so solid waste incineration has a better resource utilization effect. The ammonium dihydrogen phosphate inhibitor used in the invention has the advantages of high inhibition efficiency, strong operability, low cost and environment protection, providing the technology with good application feasibility.

主权项

1. Method of inhibiting formation of dioxins and dioxin-like compounds in solid waste incineration flue gas, characterized in that, when incineration flue gases cool down to 500˜450° C., the flue gases are introduced into an inhibition reactor where copper chloride in flue gas particulates mix and react with inhibitors to convert into copper metaphosphate.