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1. (WO2006088634) AMMONIA OXIDATION CATALYST FOR THE COAL FIRED UTILITIES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/088634    International Application No.:    PCT/US2006/003270
Publication Date: 24.08.2006 International Filing Date: 30.01.2006
IPC:
B01D 53/86 (2006.01), B01J 23/648 (2006.01)
Applicants: ENGELHARD CORPORATION [US/US]; 101 Wood Avenue, P.O Box 770, Iselin, NJ 08830-0770 (US) (For All Designated States Except US)
Inventors: TRAN, Pascaline, H.; (US).
LAPADULA, Gerard, D.; (US).
LIU, Xinsheng; (US)
Agent: HAMPILOS, Gus, T.; 101 Wood Avenue, P.O. Box 770, Iselin, NJ 08830-0770 (US)
Priority Data:
11/058,822 16.02.2005 US
Title (EN) AMMONIA OXIDATION CATALYST FOR THE COAL FIRED UTILITIES
(FR) CATALYSEUR D'OXYDATION D'AMMONIAC POUR DISPOSITIFS FONCTIONNANT AU CHARBON
Abstract: front page image
(EN)A process is described that removes by oxidation the excess ammonia (NH3) gas from flue gases that have been subjected to selective catalytic reduction (SCR) of oxides of nitrogen (NOx) by ammonia injection. The inventive process incorporates a secondary catalyst of precious metal and vanadia on a metal oxide such as titania to catalyze the oxidation of both ammonia and carbon monoxide (CO) while maintaining sulfur dioxide (SO2) levels.
(FR)L'invention concerne un procédé permettant d'éliminer par oxydation l'excès d'ammoniac (NH3) de gaz de combustion ayant été soumis à une réduction catalytique sélective (SCR) d'oxydes d'azote (NOx), par l'injection d'ammoniac. Le procédé utilise un catalyseur secondaire comprenant un métal précieux et de l'oxyde de vanadium sur un oxyde métallique, p. ex. oxyde de titane, pour catalyser l'oxydation de l'ammoniac et de l'oxyde de carbone (CO) tout en maintenant les taux de dioxyde de soufre (SO2).
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)