BR112019008046A2 - um método para remoção de óxidos de nitrogênio a partir de um gás utilizando um catalisador de zeólito de troca de ferro - Google Patents

um método para remoção de óxidos de nitrogênio a partir de um gás utilizando um catalisador de zeólito de troca de ferro

Info

Publication number
BR112019008046A2
BR112019008046A2 BR112019008046A BR112019008046A BR112019008046A2 BR 112019008046 A2 BR112019008046 A2 BR 112019008046A2 BR 112019008046 A BR112019008046 A BR 112019008046A BR 112019008046 A BR112019008046 A BR 112019008046A BR 112019008046 A2 BR112019008046 A2 BR 112019008046A2
Authority
BR
Brazil
Prior art keywords
nitrogen oxides
gas
zeolite catalyst
exchange zeolite
removing nitrogen
Prior art date
Application number
BR112019008046A
Other languages
English (en)
Inventor
François Granger Jean
Original Assignee
Casale Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=54427562&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR112019008046(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from EP17168721.3A external-priority patent/EP3315188A1/en
Application filed by Casale Sa filed Critical Casale Sa
Priority claimed from PCT/EP2017/074368 external-priority patent/WO2018077554A1/en
Publication of BR112019008046A2 publication Critical patent/BR112019008046A2/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—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, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—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, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8631—Processes characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—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, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—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, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/869—Multiple step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—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, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8696—Controlling the catalytic process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
    • B01J29/072—Iron group metals or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20723—Vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/402—Dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Treating Waste Gases (AREA)

Abstract

a presente invenção se refere a um método para remoção de óxidos de nitrogênio nox a partir de uma corrente gasosa. em concordância com a presente invenção, referido método compreende as etapas de passagem da corrente gasosa através de um leito catalítico de de-nox com zeólito de troca de ferro como um catalisador, com a adição de amônia como um agente de redução, em que a relação molar de nh3 sobre nox é maior do que 1,33.
BR112019008046A 2015-10-28 2017-09-26 um método para remoção de óxidos de nitrogênio a partir de um gás utilizando um catalisador de zeólito de troca de ferro BR112019008046A2 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP15191816.6A EP3162427A1 (en) 2015-10-28 2015-10-28 A method and apparatus for removing nox and n2o from a gas
PCT/EP2016/076152 WO2017072332A1 (en) 2015-10-28 2016-10-28 A METHOD AND APPARATUS FOR REMOVING NOx AND N2O FROM A GAS
EP17168721.3A EP3315188A1 (en) 2016-10-28 2017-04-28 A method for removing nitrogen oxides from a gas using an iron exchanged zeolite catalyst
PCT/EP2017/074368 WO2018077554A1 (en) 2016-10-28 2017-09-26 A method for removing nitrogen oxides from a gas using an iron exchanged zeolite catalyst

Publications (1)

Publication Number Publication Date
BR112019008046A2 true BR112019008046A2 (pt) 2019-07-02

Family

ID=54427562

Family Applications (2)

Application Number Title Priority Date Filing Date
BR112018008653A BR112018008653A2 (pt) 2015-10-28 2016-10-28 método e aparelho para remover nox e n2o de um gás
BR112019008046A BR112019008046A2 (pt) 2015-10-28 2017-09-26 um método para remoção de óxidos de nitrogênio a partir de um gás utilizando um catalisador de zeólito de troca de ferro

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BR112018008653A BR112018008653A2 (pt) 2015-10-28 2016-10-28 método e aparelho para remover nox e n2o de um gás

Country Status (11)

Country Link
US (1) US11325069B2 (pt)
EP (2) EP3162427A1 (pt)
CN (2) CN108136329B (pt)
AU (2) AU2016347643B2 (pt)
BR (2) BR112018008653A2 (pt)
CA (2) CA3000915C (pt)
CL (1) CL2018001131A1 (pt)
MY (2) MY176370A (pt)
RU (1) RU2712609C2 (pt)
SA (1) SA519401611B1 (pt)
WO (1) WO2017072332A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2746371C2 (ru) * 2016-09-23 2021-04-12 Касале Са Каталитический химический реактор аксиально-радиального потока с двумя слоями катализатора
EP3532189B1 (en) 2016-10-28 2024-05-15 Casale SA A method for removing nitrogen oxides from a gas using an iron exchanged zeolite catalyst
BR112020005604A2 (pt) 2017-11-30 2020-09-29 Casale Sa processo para a produção de ácido nítrico com redução terciária de n2o e nox
EP3689441A1 (en) * 2019-02-01 2020-08-05 Casale Sa Process for removing nitrogen oxides from a gas
EP3741449A1 (en) * 2019-05-21 2020-11-25 Haldor Topsøe A/S A process for the removal of dinitrogen oxide in process off-gas
CN111644048B (zh) * 2019-09-09 2022-01-21 上海浦景化工技术股份有限公司 脱除尾气中氮氧化物、亚硝酸烷基酯气体的工艺方法

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970034A (en) 1957-04-05 1961-01-31 Engelhard Ind Inc Method of purifying gases containing oxygen and oxides of nitrogen
US3467492A (en) 1964-11-06 1969-09-16 Chemical Construction Corp Elimination of nitrogen oxides from gas streams
US4081511A (en) 1975-03-21 1978-03-28 Didier Engineering Gmbh Process for removing nitric oxides from processing exhaust gases
US4049777A (en) 1976-05-20 1977-09-20 Didier Engineering Gmbh Method of waste gas treatment
GB2162830B (en) 1984-08-10 1988-08-10 Babcock Hitachi Kk Ammonia reduction-denitration process and apparatus therefor
US4571329A (en) * 1984-08-13 1986-02-18 Babcock-Hitachi Kabushiki Kaisha Ammonia reduction-denitration process and apparatus therefor
DE3532209A1 (de) 1985-09-10 1987-03-12 Didier Eng Verfahren zur selektiven katalytischen reduktion von stickoxiden
DE4440833A1 (de) 1994-11-15 1996-02-08 Bayerische Motoren Werke Ag Katalysator-Anordnung zur Reduktion von Stickoxiden in sauerstoffhaltigen Abgasen einer Brennkraftmaschine, insbesondere Dieselmotor
TW410170B (en) 1996-07-08 2000-11-01 Boc Group Inc Removal of nitrogen oxides from gas streams
US20040179986A1 (en) * 1998-09-09 2004-09-16 Porzellanwerk Kloster Veilsdorf Gmbh Ceramic catalyst for the selective decomposition of N2O and method for making same
DE19859003A1 (de) 1998-12-21 2000-06-29 Bosch Gmbh Robert Abgasreinigung zum Reduzieren von Stickoxiden aus sauerstoffhaltigen Abgasen einer Brennkraftmaschine
US6182443B1 (en) 1999-02-09 2001-02-06 Ford Global Technologies, Inc. Method for converting exhaust gases from a diesel engine using nitrogen oxide absorbent
FR2789911B1 (fr) 1999-02-18 2001-05-04 Grande Paroisse Sa Procede pour abattre simultanement les oxydes nitriques et le protoxyde d'azote dans les gaz qui en contiennent
US6182553B1 (en) 1999-03-22 2001-02-06 The United States Of America As Represented By The Secretary Of The Navy Boat deployed explosive net assembly
DE10001539B4 (de) * 2000-01-14 2006-01-19 Uhde Gmbh Verfahren zur Beseitigung von NOx und N2O
DE10001541B4 (de) * 2000-01-14 2005-04-28 Uhde Gmbh Verfahren zur Beseitigung von NOx und N¶2¶O aus dem Restgas der Salpetersäureproduktion
DE10020100A1 (de) * 2000-04-22 2001-10-31 Dmc2 Degussa Metals Catalysts Verfahren und Katalysator zur Reduktion von Stickoxiden
NL1017245C2 (nl) 2001-01-31 2002-08-01 Stichting Energie Werkwijze voor het gelijktijdig verwijderen van stikstofoxiden en lachgas uit een stikstofoxiden en lachgas bevattende gasstroom.
US7438878B2 (en) 2001-03-12 2008-10-21 Basf Catalysts Llc Selective catalytic reduction of N2O
DE10112444A1 (de) 2001-03-13 2002-10-02 Krupp Uhde Gmbh Verfahren zur Verringerung des Gehalts von N¶2¶O und NO¶x¶ in Gasen
EP1286027A1 (de) 2001-08-14 2003-02-26 Siemens Aktiengesellschaft Katalysatorsystem, Verwendung eines Katalysatorsystems und Verfahren zum Betrieb eines Katalysatorsystems
DE10215605A1 (de) * 2002-04-09 2003-10-30 Uhde Gmbh Entstickungsverfahren
DE10226461A1 (de) * 2002-06-13 2004-01-22 Uhde Gmbh Verfahren und Vorrichtung zur Verringerung des Gehaltes an NOx und N2O in Gasen
CN100355488C (zh) 2003-05-07 2007-12-19 韩国高化环保技术有限公司 通过多次喷射还原氮氧化物的催化方法及其用法
JP2005177570A (ja) * 2003-12-17 2005-07-07 Ne Chemcat Corp 高温特性に優れるｓｃｒ触媒
NL1026207C2 (nl) * 2004-05-17 2005-11-21 Stichting Energie Werkwijze voor de decompositie van N2O, katalysator daarvoor en bereiding van deze katalysator.
US6996975B2 (en) 2004-06-25 2006-02-14 Eaton Corporation Multistage reductant injection strategy for slipless, high efficiency selective catalytic reduction
DE102005022650A1 (de) * 2005-05-11 2006-11-16 Uhde Gmbh Verfahren zur Verringerung des Gehaltes an Stickoxiden in Gasen
EP2200734A4 (en) 2007-10-19 2012-04-18 Ecocat Oy REMOVAL OF AMMONIA FROM FLUIDS
US8201394B2 (en) * 2008-04-30 2012-06-19 Cummins Ip, Inc. Apparatus, system, and method for NOx signal correction in feedback controls of an SCR system
US8323600B2 (en) * 2008-12-08 2012-12-04 Haldor Topsoe A/S Method and catalyst for removal of nitrogen oxides in a flue gas
DE102010003765A1 (de) * 2010-04-08 2011-10-13 Robert Bosch Gmbh Verfahren zur Herstellung eines Photovoltaik-Moduls mit rückseitenkontaktierten Halbleiterzellen
DE102010022775A1 (de) 2010-06-04 2011-12-08 Uhde Gmbh Verfahren und Vorrichtung zur Beseitigung von NOx und N2O
DE102011011881A1 (de) * 2011-02-21 2012-08-23 Thyssenkrupp Uhde Gmbh Verfahren zur Beseitigung von N2O und NOX aus dem Prozess zur Salpetersäureherstellung
DE102011121188A1 (de) * 2011-12-16 2013-06-20 Thyssen Krupp Uhde Gmbh Vorrichtung und Verfahren zur Beseitigung von NOx und N20
DE102012010017A1 (de) 2012-05-22 2013-11-28 Thyssenkrupp Uhde Gmbh Verfahren zur Verminderung der Stickoxid-Abgaskonzentration in einer Salpetersäureanlage beim Ab- und/oder Anfahren sowie dafür geeignete Salpetersäureanlagen
EP2844372B1 (de) 2012-06-27 2016-06-29 Siemens Aktiengesellschaft Abgasreinigungsvorrichtung und verfahren zur reduktion von stickoxiden aus einem abgas einer fossil befeuerten kraftwerksanlage
US8834823B2 (en) * 2012-08-09 2014-09-16 Exxonmobil Research And Engineering Company Catalytic reduction of NOx with high activity catalysts
US9517457B2 (en) 2013-10-30 2016-12-13 Cummins Inc. Aftertreatment systems with reduced N2O generation
WO2015130215A1 (en) 2014-02-28 2015-09-03 Scania Cv Ab Exhaust treatment system and method for treatment of an exhaust stream

Also Published As

Publication number Publication date
EP3368194A1 (en) 2018-09-05
US11325069B2 (en) 2022-05-10
RU2018118804A3 (pt) 2019-11-29
RU2712609C2 (ru) 2020-01-29
EP3368194B1 (en) 2019-08-14
CA3000915C (en) 2023-04-04
SA519401611B1 (ar) 2023-06-04
AU2017349650A1 (en) 2019-05-02
CN108136329B (zh) 2021-09-10
CN108136329A (zh) 2018-06-08
CA3039301A1 (en) 2018-05-03
BR112018008653A2 (pt) 2018-10-30
US20180280873A1 (en) 2018-10-04
MY196674A (en) 2023-04-29
RU2018118804A (ru) 2019-11-29
MY176370A (en) 2020-08-04
CA3039301C (en) 2023-10-17
WO2017072332A1 (en) 2017-05-04
CN109862956A (zh) 2019-06-07
AU2017349650B2 (en) 2023-04-13
CA3000915A1 (en) 2017-05-04
EP3162427A1 (en) 2017-05-03
AU2016347643B2 (en) 2021-11-04
AU2016347643A1 (en) 2018-04-12
CL2018001131A1 (es) 2018-08-10

Similar Documents

Publication Publication Date Title
BR112019008046A2 (pt) um método para remoção de óxidos de nitrogênio a partir de um gás utilizando um catalisador de zeólito de troca de ferro
GB2514945A (en) Catalyst blends
MX2018009534A (es) Catalizador de chabazita cointercambiada con cobre y hierro.
BR112012025748A2 (pt) Catalisador, sistema de tratamento de gás de escape, e, processo para tratamento de uma corrente de gás
GB2534644A (en) Zeolite blend catalysts for treating exhaust gas containing Nox
MY169112A (en) Mixed metal 8-ring small pore molecular sieve catalyst compositions, catalytic articles, systems and methods
MX2015011264A (es) Sistema de catalizadores para reduccion catalitica selectiva.
GB2543166A (en) SCR Catalysts having improved low temperature performance and methods of making and using the same
MX2015011354A (es) Sistema de catalizadores para reduccion catalitica selectiva.
GB2548261A (en) Molecular sieve catalyst for treating exhaust gas
IN2014CN02950A (pt)
EP2657190A4 (en) CHABAZITE-TYPE ZEOLITE AND PROCESS FOR PRODUCTION THEREOF, COPPER-CONTAINING SILICON SILICON ZEOLITE, NOX-REDUCING ELIMINATION CATALYST COMPRISING THE SAME, AND METHOD FOR NOX-REDUCING ELIMINATION USING THE CATALYST
ZA201706320B (en) Catalyst for purification of exhaust gas, method for producing the same, and method for purification of exhaust gas using the same
IN2014CN02431A (pt)
GB2532133A (en) Cerium-modified manganese octahedral molecular sieves as catalysts for selective catalytic reduction
BR112012028320A2 (pt) "artigo catalítico, sistema de tratamento de emissões, e, método para preparar um artigo catalítico"
BR112014014516A2 (pt) dispositivo e processo para a diminuição do teor de nox e de n2o em gases
EP2965812A4 (en) LOW TEMPERATURE SCR CATALYST FOR EXHAUST GAS DENITRIFICATION OF DIESEL VEHICLES, AND METHOD FOR PREPARING THE SAME
BRPI0912247A2 (pt) processo para a redução de óxido de nitrogênio em gases de escape, contendo hidrocarbonetos, mediante emprego de um catalisador scr na base de um crivo molecular.
GB2532595A (en) Aluminosilicate or silicoaluminophosphate molecular sieve/manganese octahedral molecular sieve as catalysts for treating exhaust gas
BR112013022014A2 (pt) catalisador, artigo catalítico, e, método para reduzir a emissão de nox a partir de uma turbina de gás estacionária
DE112014003672T8 (de) Ceroxid-Zirkonoxid-basiertes Kompositoxid und Verfahren zum Herstellen desselben sowie Abgasreinigungskatalysator, der Ceroxid-Zirkonoxid-basiertes Kompositoxid beinhaltet
CL2013002413A1 (es) Proceso y planta para la preparación de ácido nítrico por oxidación catalítica de nh3 que comprende un lecho catalizador para la descomposición de n2o dispuesta en el gas del proceso y un lecho catalizador para la reducción de nox y efectuar una disminución adicional en la cantidad de n2o dispuestas en el gas de cola
EP2893979A4 (en) EXHAUST GAS PURIFYING CATALYST, MONOLITHIC GAS PURIFYING CATALYST AND METHOD OF MANUFACTURING EXHAUST PURIFYING CATALYST
EP2749352A4 (en) EXHAUST GAS CLEANING CATALYST AND MANUFACTURING METHOD THEREFOR

Legal Events

Date Code Title Description
B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time