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1. (WO2018077554) A METHOD FOR REMOVING NITROGEN OXIDES FROM A GAS USING AN IRON EXCHANGED ZEOLITE CATALYST
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Pub. No.: WO/2018/077554 International Application No.: PCT/EP2017/074368
Publication Date: 03.05.2018 International Filing Date: 26.09.2017
Chapter 2 Demand Filed: 27.04.2018
IPC:
B01D 53/86 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34
Chemical or biological purification of waste gases
74
General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86
Catalytic processes
Applicants:
CASALE SA [CH/CH]; Via Giulio Pocobelli 6 6900 Lugano, CH
Inventors:
GRANGER, Jean François; CH
Agent:
ZARDI, Marco; CH
Priority Data:
17168721.328.04.2017EP
PCT/EP2016/07615228.10.2016EP
Title (EN) A METHOD FOR REMOVING NITROGEN OXIDES FROM A GAS USING AN IRON EXCHANGED ZEOLITE CATALYST
(FR) PROCÉDÉ D'ÉLIMINATION D'OXYDES D'AZOTE D'UN GAZ À L'AIDE D'UN CATALYSEUR À ZÉOLITE À ÉCHANGE DE FER
Abstract:
(EN) A method for removing nitrogen oxides NOx from a gaseous current, comprising the steps of: passing the gaseous current through a de-NOx catalytic bed with iron exchanged zeolite as a catalyst with the addition of ammonia as a reducing agent, wherein the molar ratio of NH3 over NOx is greater than 1.33.
(FR) L'invention concerne également un procédé d'élimination d'oxydes d'azote NOx à partir d'un courant gazeux, comprenant les étapes consistant à: faire passer le courant gazeux à travers un lit catalytique de de-NOx avec une zéolite à échange de fer en tant que catalyseur avec l'addition d'ammoniac en tant qu'agent réducteur, le rapport molaire NH3 sur NOx étant supérieur à 1,33.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)