The hot sulfur-containing exhaust air gas which does not include the blockade prevention manner of the flue for the sulfur-containing exhaust air

摘要

PROBLEM TO BE SOLVED: To provide a clogging inhibition method of a flue for a sulfur containing exhaust gas capable of surly preventing a fouling from generating in the flue for the sulfur containing gas which introduces the sulfur containing gas to a wet desulfurization apparatus from an absorption column of a sulfuric acid factory, and capable of efficiently absorbing SO₂ gas without losing a water balance in the wet desulfurization apparatus.;SOLUTION: The clogging inhibition method of the flue 10 for the sulfur containing exhaust gas having a humidity controlling part 13 which lowers a temperature of the exhaust gas by spraying an absorbing liquid from the apparatus 30 performing a wet desulfurization process at the inlet of the flue 10 introducing the high-temperature exhaust gas to the apparatus 30 performing the wet desulfurization process comprises finding a vaporized water amount W by multiplying a saturated steam amount G at a temperature of the exhaust gas flowing in the flue 10 for the sulfur containing exhaust gas by a flow volume V of the exhaust gas, and supplying a makeup water of within the range of 20-100% of the vaporized water amount W to the flue 10 for the sulfur containing exhaust gas.;COPYRIGHT: (C)2008,JPO&INPIT