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1. (WO2017134007) METHOD FOR THE REMOVAL OF NITROUS OXIDE FROM OFF GAS IN PRESENCE OF CATALYST COMPRISING AN FE-AEI ZEOLITE MATERIAL ESSENTIALLY FREE OF ALKALI METAL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/134007 International Application No.: PCT/EP2017/051913
Publication Date: 10.08.2017 International Filing Date: 30.01.2017
IPC:
B01D 53/86 (2006.01) ,B01D 53/94 (2006.01) ,B01J 29/072 (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
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
92
of engine exhaust gases
94
by catalytic processes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
29
Catalysts comprising molecular sieves
04
having base-exchange properties, e.g. crystalline zeolites, pillared clays
06
Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
064
containing iron group metals, noble metals or copper
072
Iron group metals or copper
Applicants:
UMICORE AG & CO. KG [DE/DE]; Rodenbacher Chaussee 4 63457 Hanau-Wolfgang, DE
Inventors:
MARTÍN GARCÍA, Nuria; ES
MOLINER MARÍN, Manuel; ES
CORMA CANÓS, Avelino; ES
THØGERSEN, Joakim Reimer; DK
VENNESTRØM, Peter Nicolai Ravnborg; DK
Priority Data:
PA 2016 7005401.02.2016DK
Title (EN) METHOD FOR THE REMOVAL OF NITROUS OXIDE FROM OFF GAS IN PRESENCE OF CATALYST COMPRISING AN FE-AEI ZEOLITE MATERIAL ESSENTIALLY FREE OF ALKALI METAL
(FR) PROCÉDÉ D'ÉLIMINATION D'OXYDE NITREUX PRÉSENT DANS UN EFFLUENT GAZEUX EN PRÉSENCE D'UN CATALYSEUR COMPRENANT UN MATÉRIAU ZÉOLITE FE-AEI PRATIQUEMENT EXEMPT D'UN MÉTAL ALCALIN
Abstract:
(EN) A method for the removal of nitrous oxide from off gas by direct decomposition or by selective catalytic reduction in presence of a reducing agent, comprising the steps of contacting the gas directly or together with the reducing agent or a precursor thereof with a catalyst comprising an Fe-AEI zeolite material essentially free of alkali metal ions (Alk) and having the following molar compositions: SiO2 : o AI2O3: p Fe : q Alk wherein o is in the range from 0.001 to 0.2; wherein p is in the range from 0.001 to 0.2; wherein Alk is one or more of alkali ions and wherein q is less than 0.02.
(FR) La présente invention concerne un procédé d'élimination d'oxyde nitreux présent dans un effluent gazeux par décomposition directe ou par réduction catalytique sélective en présence d'un agent réducteur, comprenant les étapes consistant à mettre en contact le gaz directement ou conjointement avec l'agent réducteur ou un précurseur de celui-ci avec un catalyseur comprenant un matériau zéolite Fe-AEI pratiquement exempt d'ions de métaux alcalins (Alk) et possédant les compositions molaires suivantes : SiO2 : o AI2O3: p Fe : q Alk dans lesquelles o est situé dans la plage allant de 0,001 à 0,2; p est situé dans la plage allant de 0,001 à 0,2; Alk désigne un ou plusieurs ions alcalins et q est inférieur à 0,02.
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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, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Also published as:
CN108472586KR1020180105230EP3411132