| US 7,488,461 B2 | ||
| Exhaust gas treatment system and exhaust gas treatment method | ||
| Hiromitsu Nagayasu, Hyogo-ken (Japan); Yasutoshi Ueda, Hyogo-ken (Japan); Morio Kagami, Hyogo-ken (Japan); and Toshihide Noguchi, Hyogo-ken (Japan) | ||
| Assigned to Mitsubishi Heavy Industries, Ltd., Tokyo (Japan) | ||
| Filed on Apr. 19, 2006, as Appl. No. 11/406,422. | ||
| Claims priority of application No. 2005-128045 (JP), filed on Apr. 26, 2005; and application No. 2006-052919 (JP), filed on Feb. 28, 2006. | ||
| Prior Publication US 2006/0239881 A1, Oct. 26, 2006 | ||
| Int. Cl. B01D 53/50 (2006.01); B01D 53/68 (2006.01); B01D 53/64 (2006.01); B01D 53/48 (2006.01); B01D 53/74 (2006.01); B01D 53/78 (2006.01); B01D 53/79 (2006.01) | ||
| U.S. Cl. 423—210 [423/220; 423/225; 423/232; 423/240 R; 423/243.01; 423/243.08; 422/168; 422/169; 422/170] | 10 Claims |
| 1. An exhaust gas treatment system for removing at least one of the group consisting of sulfur trioxide, hydrogen fluoride,
hydrogen chloride, mercury chloride, hydrogen sulfide, and carbonyl sulfide from combustion exhaust gas, wherein
there is provided a spraying device which sprays an aqueous solution containing a dissolved salt of or a sulfate of any one
of Na, K, Mg and Ca, into a flue through which said combustion exhaust gas flows.
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