(12) International Application Status Report

Received at International Bureau: 06 October 2017 (06.10.2017)

Information valid as of: 21 February 2019 (21.02.2019)

Report generated on: 23 February 2019 (23.02.2019)

(10) Publication number: (43) Publication date: (26) Publication language:
WO 2018/07755403 May 2018 (03.05.2018) English (EN)

(21) Application number: (22) Filing date: (25) Filing language:
PCT/EP2017/07436826 September 2017 (26.09.2017) English (EN)

(31) Priority number(s): (32) Priority date(s): (33) Priority status:
PCT/EP2016/076152 (EP)28 October 2016 (28.10.2016) Priority document received (in compliance with PCT Rule 17.1)
17168721.3 (EP)28 April 2017 (28.04.2017) Priority document received (in compliance with PCT Rule 17.1)

(51) International Patent Classification:
B01D 53/86 (2006.01)

(71) Applicant(s):
CASALE SA [CH/CH]; Via Giulio Pocobelli 6 6900 Lugano (CH) (for all designated states)

(72) Inventor(s):
GRANGER, Jean François; Via Sorengo 17 6900 Lugano (CH)

(74) Agent(s):
ZARDI, Marco; c/o M. ZARDI & Co SA, Via Pioda, 6 6900 Lugano (CH)

(54) Title (EN): A METHOD FOR REMOVING NITROGEN OXIDES FROM A GAS USING AN IRON EXCHANGED ZEOLITE CATALYST
(54) Title (FR): PROCÉDÉ D'ÉLIMINATION D'OXYDES D'AZOTE D'UN GAZ À L'AIDE D'UN CATALYSEUR À ZÉOLITE À ÉCHANGE DE FER

(57) 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.

International search report:
Received at International Bureau: 05 March 2018 (05.03.2018) [EP]

International Report on Patentability (IPRP) Chapter II of the PCT:
Chapter II demand received: 27 April 2018 (27.04.2018)

(81) 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
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 (OAPI) : BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG
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 (EAPO) : AM, AZ, BY, KG, KZ, RU, TJ, TM