ZA201505399B - Method and catalyst for the simultaneous removal of carbon monoxide and nitrogen oxides from flue or exhaust gas - Google Patents

Method and catalyst for the simultaneous removal of carbon monoxide and nitrogen oxides from flue or exhaust gas

Info

Publication number
ZA201505399B
ZA201505399B ZA2015/05399A ZA201505399A ZA201505399B ZA 201505399 B ZA201505399 B ZA 201505399B ZA 2015/05399 A ZA2015/05399 A ZA 2015/05399A ZA 201505399 A ZA201505399 A ZA 201505399A ZA 201505399 B ZA201505399 B ZA 201505399B
Authority
ZA
South Africa
Prior art keywords
flue
catalyst
exhaust gas
carbon monoxide
nitrogen oxides
Prior art date
Application number
ZA2015/05399A
Other languages
English (en)
Inventor
Lucassen Hansen Viggo
Castellino Francesco
Original Assignee
Haldor Topsoe As
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
Application filed by Haldor Topsoe As filed Critical Haldor Topsoe As
Publication of ZA201505399B publication Critical patent/ZA201505399B/en

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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/648—Vanadium, niobium or tantalum or polonium
    • B01J23/6482—Vanadium
    • 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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9463—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick
    • B01D53/9468—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick in different layers
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/063—Titanium; Oxides or hydroxides thereof
    • 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
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44—Palladium
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • 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
    • B01D2255/20707—Titanium
    • 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
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/902—Multilayered catalyst
    • B01D2255/9022—Two layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Crystallography & Structural Chemistry (AREA)
ZA2015/05399A 2013-02-14 2015-07-27 Method and catalyst for the simultaneous removal of carbon monoxide and nitrogen oxides from flue or exhaust gas ZA201505399B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201300091 2013-02-14
PCT/EP2014/052043 WO2014124830A1 (en) 2013-02-14 2014-02-03 Method and catalyst for the simultaneous removal of carbon monoxide and nitrogen oxides from flue or exhaust gas

Publications (1)

Publication Number Publication Date
ZA201505399B true ZA201505399B (en) 2017-11-29

Family

ID=50031348

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2015/05399A ZA201505399B (en) 2013-02-14 2015-07-27 Method and catalyst for the simultaneous removal of carbon monoxide and nitrogen oxides from flue or exhaust gas

Country Status (11)

Country Link
US (2) US20150375207A1 (enExample)
EP (1) EP2956232B1 (enExample)
JP (1) JP6215361B2 (enExample)
KR (1) KR102186734B1 (enExample)
CN (1) CN104936679B (enExample)
BR (1) BR112015019557B1 (enExample)
CA (1) CA2899149C (enExample)
CL (1) CL2015002212A1 (enExample)
RU (1) RU2657082C2 (enExample)
WO (1) WO2014124830A1 (enExample)
ZA (1) ZA201505399B (enExample)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6571788B2 (ja) * 2015-03-20 2019-09-04 ハルドール・トプサー・アクチエゼルスカベット 触媒化セラミックキャンドルフィルタ及びオフガスまたは排ガスの清浄方法
JP6626118B2 (ja) * 2015-03-20 2019-12-25 ハルドール・トプサー・アクチエゼルスカベット 触媒化セラミックキャンドルフィルタ及びプロセスオフガスまたは排ガスの清浄方法
KR102517482B1 (ko) * 2015-07-09 2023-04-04 우미코레 아게 운트 코 카게 엔진 배기 가스로부터 미립자 물질 및 유해한 화합물을 제거하기 위한 시스템
DK180289B1 (en) * 2016-10-03 2020-10-07 Haldor Topsoe As Monolithic honeycomb oxidation catalyst and process for its preparation
EP3523011A1 (en) 2016-10-07 2019-08-14 Haldor Topsøe A/S A process for low temperature gas cleaning with ozone and a catalytic bag filter for use in the process
US10857504B2 (en) * 2017-03-31 2020-12-08 Toyota Motor Engineering & Manufacturing North America, Inc. Two-stage catalyst for removal of NOx from exhaust gas stream
JP6986570B2 (ja) * 2017-04-26 2021-12-22 ハルドール・トプサー・アクチエゼルスカベット Ｓｃｒ触媒を有するセラミックフィルターを用いて煙道ガスから粒子状物質および有害化合物を除去するための方法およびシステム
KR102577389B1 (ko) * 2017-06-09 2023-09-15 바스프 코포레이션 촉매 물품 및 배기가스 처리 시스템
EP3533511A1 (en) * 2018-02-28 2019-09-04 Xpuris GmbH An exhaust gas treatment method and system arranged for treating exhaust gases collected from at least one foundry process
CN108993544B (zh) * 2018-08-03 2020-12-25 生态环境部华南环境科学研究所 一种去除低温高硫尾气中NOx和VOCs的催化剂及其制备和应用
CN112584925A (zh) * 2018-08-28 2021-03-30 优美科股份公司及两合公司 用于氮氧化物的选择性催化还原(scr)的催化剂
EP3730210A1 (en) * 2019-04-26 2020-10-28 Umicore Ag & Co. Kg Catalyst ceramic candle filter for combined particulate removal and the selective catalytic reduction (scr) of nitrogen-oxides
KR102155628B1 (ko) * 2019-05-14 2020-09-14 이덕기 반도체 제조공정의 질소산화물 및 입자성 물질 제거장치
CN114401790A (zh) 2019-09-27 2022-04-26 庄信万丰催化剂(德国)有限公司 用于处理固定式排放源废气中的CO和NOx的多功能催化剂制品
US12257573B2 (en) 2019-09-30 2025-03-25 Basf Mobile Emissions Catalysts Llc Multifunctional catalyst for hydrocarbon oxidation and selective catalytic reduction of NOx
US11378278B2 (en) * 2019-12-11 2022-07-05 Umicore Ag & Co. Kg System and process for efficient SCR at high NO2 to NOx ratios
CN111482071B (zh) * 2020-04-14 2022-09-27 中钢集团天澄环保科技股份有限公司 一种烧结烟气多污染物协同净化及余热利用系统及工艺
CN115734815A (zh) 2020-06-11 2023-03-03 托普索公司 炭黑废气的催化氧化
KR102457079B1 (ko) * 2020-11-30 2022-10-21 한국에너지기술연구원 복합유해물질 동시 제거 시스템
KR102527339B1 (ko) 2021-01-06 2023-04-28 울산과학기술원 일산화탄소 탈수소효소 및 포름산 탈수소효소를 이용한 개미산의 제조 방법
KR102682231B1 (ko) 2021-02-17 2024-07-08 주식회사 엔바이온 질소화합물이 함유된 휘발성유기화합물 폐가스 처리 장치
CN113713608A (zh) * 2021-08-26 2021-11-30 复旦大学 一种用于CO和NOx同时去除的催化剂联用方法
CN113856693A (zh) * 2021-09-29 2021-12-31 北京工业大学 一种用于催化氧化CO的MoSnCo催化剂及其制备方法
US11635010B1 (en) 2021-10-05 2023-04-25 Umicore Ag & Co. Kg Combustion turbine and heat recovery system combination with SCR reactor assembly, and methods of assembling and using the same
EP4584007A1 (en) 2022-09-06 2025-07-16 Umicore AG & Co. KG Catalytic system and method for the removal of hcn from off-gases of a fluid cracking unit using same, and fcc unit assembly including the catalytic system
US12274980B2 (en) 2022-09-06 2025-04-15 Umicore Ag & Co. Kg Catalytic system and method for the removal of HCN from off-gases of a fluid cracking unit using same, and FCC unit assembly including the catalytic system
US20250303362A1 (en) 2024-03-29 2025-10-02 Umicore Ag & Co. Kg Scr reactor system, scr reactor assembly, scr reactor apparatus, and mixing device, and methods of using and assembling each of the same

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3436567B2 (ja) * 1993-06-23 2003-08-11 バブコック日立株式会社 排ガス浄化触媒およびその製造方法
JP3793283B2 (ja) * 1996-06-20 2006-07-05 バブコック日立株式会社 排ガス浄化用触媒およびそれを用いた排ガス浄化装置
US7390471B2 (en) 2005-11-17 2008-06-24 Siemens Power Generation, Inc. Apparatus and method for catalytic treatment of exhaust gases
JP4523911B2 (ja) * 2005-12-14 2010-08-11 本田技研工業株式会社 排ガス浄化装置
EP1961933B1 (de) * 2007-02-23 2010-04-14 Umicore AG & Co. KG Katalytisch aktiviertes Dieselpartikelfilter mit Ammoniak-Sperrwirkung
DE102008008785A1 (de) * 2008-02-12 2009-08-13 Man Nutzfahrzeuge Aktiengesellschaft Vorrichtung zur Verminderung von Dibenzo-Dioxin-, Dibenzo-Furan- und Partikel-Emissionen
EP2112341B1 (en) * 2008-04-22 2018-07-11 Umicore AG & Co. KG Method for purification of an exhaust gas from a diesel engine
US20100101221A1 (en) 2008-10-28 2010-04-29 Caterpillar Inc. CATALYSTS, SYSTEMS, AND METHODS FOR REDUCING NOx IN AN EXHAUST GAS
DE102008055890A1 (de) * 2008-11-05 2010-05-12 Süd-Chemie AG Partikelminderung mit kombiniertem SCR- und NH3-Schlupf-Katalysator
US20100251700A1 (en) * 2009-04-02 2010-10-07 Basf Catalysts Llc HC-SCR System for Lean Burn Engines
US9662611B2 (en) * 2009-04-03 2017-05-30 Basf Corporation Emissions treatment system with ammonia-generating and SCR catalysts
ES2658912T3 (es) * 2009-05-15 2018-03-12 Peroxychem Llc Tratamiento de NOx de gases de combustión
JPWO2011118047A1 (ja) * 2010-03-24 2013-07-04 トヨタ自動車株式会社 排ガス浄化用触媒
US20120328499A1 (en) * 2010-06-30 2012-12-27 N.E. Chemcat Corporation Exhaust gas purification catalyst apparatus using selective reduction-type catalyst and exhaust gas purification method
FR2964413B1 (fr) * 2010-09-02 2016-07-01 Peugeot Citroen Automobiles Sa Filtre a particules a trois revetements catalytiques
MX2013004636A (es) * 2010-11-02 2013-06-05 Topsoe Haldor As Metodo para la preparacion de un filtro catalizado de material particulado y filtro catalizado de material particulado.
JP2012130853A (ja) * 2010-12-21 2012-07-12 Mitsubishi Heavy Ind Ltd バグフィルタ及び排ガス処理装置
JP2012237282A (ja) * 2011-05-13 2012-12-06 Toyota Industries Corp 触媒装置
RU2665464C2 (ru) * 2011-06-05 2018-08-30 Джонсон Мэтти Паблик Лимитед Компани Катализатор на основе металла платиновой группы (мпг) для обработки выхлопных газов
JP6571788B2 (ja) * 2015-03-20 2019-09-04 ハルドール・トプサー・アクチエゼルスカベット 触媒化セラミックキャンドルフィルタ及びオフガスまたは排ガスの清浄方法

Also Published As

Publication number Publication date
JP6215361B2 (ja) 2017-10-18
CA2899149C (en) 2020-03-24
EP2956232A1 (en) 2015-12-23
CN104936679A (zh) 2015-09-23
US10493436B2 (en) 2019-12-03
KR102186734B1 (ko) 2020-12-07
EP2956232B1 (en) 2017-04-05
BR112015019557A2 (pt) 2017-07-18
RU2015138782A (ru) 2017-03-20
RU2657082C2 (ru) 2018-06-08
US20150375207A1 (en) 2015-12-31
BR112015019557B1 (pt) 2021-06-29
JP2016509956A (ja) 2016-04-04
CA2899149A1 (en) 2014-08-21
US20180250661A1 (en) 2018-09-06
WO2014124830A1 (en) 2014-08-21
CL2015002212A1 (es) 2016-01-29
KR20150116865A (ko) 2015-10-16
CN104936679B (zh) 2017-08-18

Similar Documents

Publication Publication Date Title
ZA201505399B (en) Method and catalyst for the simultaneous removal of carbon monoxide and nitrogen oxides from flue or exhaust gas
IL262306B (en) System and method for reducing the amount of sulfur oxides in exhaust gas
PL3074126T3 (pl) Katalizator scr i procedura redukcji tlenków azotu w spalinach
ZA201704022B (en) Exhaust gas purifying catalyst
GB2558467B (en) Catalyst for treating exhaust gas
PL3525918T3 (pl) Sposób oddzielania i immobilizowania dwutlenku węgla i/lub tlenku węgla z gazu odlotowego
PL2428659T3 (pl) Katalizator do usuwania tlenków azotu ze spalin silników wysokoprężnych
ZA201706320B (en) Catalyst for purification of exhaust gas, method for producing the same, and method for purification of exhaust gas using the same
PL2844372T3 (pl) Urządzenie do oczyszczania spalin i sposób redukcji tlenków azotu ze spalin elektrowni napędzanych źródłami kopalnymi
ZA201405843B (en) Methods and systems for exhaust gas recirculation
ZA201704023B (en) Exhaust gas purifying catalyst
EP2851527A4 (en) EXHAUST GAS CLEANING SYSTEM AND EXHAUST GAS CLEANING PROCEDURE
EP2907994A4 (en) SYSTEM AND METHOD FOR EXHAUST GAS PURIFICATION
ZA201704021B (en) Exhaust gas purifying catalyst
PL2566603T3 (pl) Sposób katalitycznego usuwania dwutlenku węgla i dwutlenku siarki z gazów odlotowych
GB2510171B (en) Method and cleaning apparatus for removal of SOx and NOx from exhaust gas
DE112014000482T8 (de) Abgasreinigungskatalysator und Verfahren zum Herstellen desselben
PL3098511T3 (pl) Sposób redukcji tlenku(-ów) azotu i tlenku węgla z gazów spalinowych i odpowiednia automatyka palnika
EP3103550A4 (en) Catalyst and method for purifying combustion exhaust gas
AP2015008643A0 (en) Process for recovering carbon dioxide from combustion exhaust gas
PL2782662T3 (pl) Sposób katalitycznego usuwania dwutlenku węgla i NOx z gazów odlotowych
EP3081298A4 (en) EMISSION CONTROL CATALYST
EP2924270A4 (en) EXHAUST GAS CLEANING SYSTEM AND EXHAUST GAS CLEANING PROCEDURE
EP2959969A4 (en) Exhaust gas purifying catalyst and exhaust gas purification method using same
EP2853303A4 (en) WAVE FILTER, EXHAUST GAS CLEANING DEVICE AND EXHAUST GAS CLEANING PROCEDURE