Patent ID: 7955417

Claim:
A method for reducing an amount of an organic chlorine compound emitted from a cement production facility, comprising: passing an exhaust gas generated from calcination of cement raw materials through an electric dust collector, thereby producing dust-removed gas; adding to said dust-removed gas an adsorbing powder, wherein said dust-removed gas comprises an organic chlorine compound, such that said organic chlorine compound is adsorbed on the surface of said adsorbing powder; passing said dust-removed gas at a temperature of from 210° C. to 230° C. through a bag filter comprising a membrane filter having a titanium-vanadium catalyst impregnated therein, said titanium-vanadium catalyst operable for decomposing an organic chlorine compound; adding said adsorbing powder into a fuel to form a mixture for calcination of cement raw materials; and heating said mixture at a temperature of 1500° C. or higher during said calcination.