EXHAUST GAS CLEANING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas cleaning method not requiring an absorbent of sulfur oxide or a large-scale desulfurizing equipment and capable of removing all of sulfur oxide, soot and a sulfuric acid soluble substance. SOLUTION: An exhaust gas purifying method consists of a process sprinkling water 7 over exhaust gas containing sulfur oxide, soot and a sulfuric acid soluble substance not only to remove a part of soot in the exhaust gas but also to humidify and cool the exhaust gas and a process bringing the humidified and cooled exhaust gas into contact with activated carbon fibers 8 for desulfurizing reaction having water bonded to the surfaces thereof not only to bond the remainder of the soot in the exhaust gas to the active carbon fibers 8 for desulfurizing reaction but also to wash or solubirize the bonded soot and the sulfuric acid soluble substance in the exhaust gas by using sulfuric acid 10 generated by the desulfurizing reaction of sulfur oxide in the exhaust gas on the active carbon fibers 8 for desulfurizing reaction to remove them.