Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2017134005) METHOD FOR THE REMOVAL OF NITROGEN OXIDES FROM EXHAUST GAS BY SELECTIVE CATALYTIC REDUCTION IN PRESENCE OF AN SCR CATALYST COMPRISING A FE-AEI ZEOLITHIC MATERIAL ESSENTIALLY FREE OF ALKALI METAL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/134005 International Application No.: PCT/EP2017/051911
Publication Date: 10.08.2017 International Filing Date: 30.01.2017
IPC:
B01D 53/86 (2006.01) ,B01D 53/94 (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
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 7005201.02.2016DK
Title (EN) METHOD FOR THE REMOVAL OF NITROGEN OXIDES FROM EXHAUST GAS BY SELECTIVE CATALYTIC REDUCTION IN PRESENCE OF AN SCR CATALYST COMPRISING A FE-AEI ZEOLITHIC MATERIAL ESSENTIALLY FREE OF ALKALI METAL
(FR) PROCÉDÉ POUR L'ÉLIMINATION D'OXYDES D'AZOTE À PARTIR DE GAZ D'ÉCHAPPEMENT PAR RÉDUCTION CATALYTIQUE SÉLECTIVE EN PRÉSENCE D'UN CATALYSEUR RCS COMPRENANT UN MATÉRIAU DE ZÉOLITE FE-AEI ESSENTIELLEMENT EXEMPT DE MÉTAL ALCALIN
Abstract:
(EN) A method for the removal of nitrogen oxides from exhaust, flue or off gas by selective catalytic reduction in presence of ammonia as a reductant, comprising the steps of contacting the exhaust gas together with the ammonia or a precursor thereof with an SCR catalyst comprising a Fe-AEI zeolite material essentially free of alkali metal ions (Alk), having the following molar compositions: SiO2 : o Al2O3: 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 metal ions and wherein q is below 0.02.
(FR) L'invention concerne un procédé pour l'élimination d'oxydes d'azote à partir de gaz de combustion, d'échappement ou résiduel par réduction catalytique sélective (RCS) en présence d'ammoniac comme agent réducteur, comprenant les étapes consistant à mettre le gaz d'échappement conjointement avec l'ammoniac ou un précurseur de ce dernier en contact avec un catalyseur RCS comprenant un matériau de zéolite Fe-AEI essentiellement exempt d'ions de métal alcalin (Alk), ayant les compositions molaires suivantes : SiO2 : o Al2O3: p Fe : q Alk, où o est compris entre 0,001 et 0,2; p est compris entre 0,001 et 0,2; Alk représente un ou plusieurs ions de métal alcalin, et q est inférieur à 0,02.
front page image
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:
US20180250632CN108472587KR1020180111907EP3411131