METHOD FOR DESULFURIZING TAIL GAS IN CEMENT PRODUCTION

摘要

PROBLEM TO BE SOLVED: To provide a desulfurization method which can efficiently perform the desulfurization of a tail gas from a cement production apparatus without the necessity for installation of any special apparatus or equipment other than the cement production apparatus.;SOLUTION: Calcium hydroxide and/or a calcium-containing hydrate as part of cement raw materials are fed into the grinder 2 of a cement production apparatus 1. In further detail, waste (e.g., ready-mixed concrete sludge, fine powder of waste concrete, or sludge containing calcium hydroxide and/or calcium-containing hydrate), as part of cement raw materials together with another cement raw material is fed into the grinder 2.;COPYRIGHT: (C)2010,JPO&INPIT