KR970020184A - 산화질소 화합물 전환용 촉매 및 방법 - Google Patents

산화질소 화합물 전환용 촉매 및 방법 Download PDF

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KR970020184A
KR970020184A KR1019960044377A KR19960044377A KR970020184A KR 970020184 A KR970020184 A KR 970020184A KR 1019960044377 A KR1019960044377 A KR 1019960044377A KR 19960044377 A KR19960044377 A KR 19960044377A KR 970020184 A KR970020184 A KR 970020184A
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catalyst
carrier
metal compound
nitric oxide
temperature
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KR1019960044377A
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KR100426542B1 (ko
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고세 복스호른
칼 요한 게리트 반 데르 그리프트
마크 크로커
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알베르투스 빌헬무스 요아네스 쩨스트라텐
셀 인터나쵸나아레 레사아치 마아츠샤피 비이부이
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Abstract

금속이 바나듐, 몰리브덴 및 텅스텐으로 구성되는 군으로부터 선택되는 하나 이상의 금속 화합물 및 티타니아 담체로 구성되고, 질소 흡착에 의해 측정된 70 내지 99m2/g의 표면적을 갖고, 티타니아 담체의 압출후에 금속 화합물로 담체를 함침시키므로써 얻을 수 있는 촉매; 이 촉매를 제조하기 위한 방법, 이 제조 방법에 의해 얻을 수 있는 촉매, 및 이 촉매의 도움으로 산화질소 화합물을 선택적으로 전환시키는 방법.

Description

산화질소 화합물 전환용 촉매 및 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. 금속이 바나듐, 몰리브덴 및 텅스텐으로 구성되는 군으로부터 선택되는 하나 이상의 금속 화합물 및 티타니아 담체로 구성되고, 질소 흡착에 의해 측정된 70 내지 99m2/g의 표면적을 갖고, 티타니아 담체의 압출후에 금속 화합물로 담체를 함침시키므로써 얻어질 수 있는 촉매.
  2. 제1항에 있어서, 촉매가 트리로브, 줄진 트리로브 또는 실린더의 형태인 촉매.
  3. 제1항 또는 제2항에 있어서, 촉매가 적어도 70N/cm의 사이드 파쇄 강도를 갖는 촉매.
  4. 제1항 내지 제3항 중 어느 한 항에 있어서, 촉매가 79 내지 99m2/g의 표면적을 갖는 촉매.
  5. 제1항 내지 제4항 중 어느 한 항에 있어서, 촉매가 이정 공극 분포를 갖고, 촉매가 단지 100nm의 직경을 갖은 공극내 존재하는 전체 공극 부피의 90% 이상을 갖고, 전체 공극 부피가 1 내지 104nm의 직경을 갖는 공극내 존재하는 공극 부피인 것으로 고려되는 촉매.
  6. (a) 해교제와 적어도 70m2/g의 표면적을 갖는 티타니아 분말을 혼합하는 단계, (b) 단지 650℃의 온도에서 단계(3)의 혼합물을 압출하고, 건조시키고, 하소시키는 단계, (c) 금속이 바나듐, 몰리브덴 및 텅스텐으로 구성되는 군으로부터 선택되는 하나 이상의 금속 화합물과 얻어진 담체를 접촉시키는 단계, (d) 단지 600℃의 온도에서 단계(c)에서 얻어진 담체를 함유하는 금속 화합물(들)을 하소시키는 단계로 구성되는, 제1항 내지 제5항 중 어느 한 항에 따른 촉매가 제조되는 방법.
  7. 제6항에 있어서, 단계(a)의 혼합물의 pH가 2.5 내지 4.5인 방법.
  8. 제6 또는 7항에 있어서, 단계(b)의 하소가 350 내지 600℃의 온도에서 수행되는 방법.
  9. 제6항 내지 제8항 중 어느 한 항에 따른 방법에 의해 얻을 수 있는 촉매.
  10. 120 내지 250℃의 온도에서, 제1항 내지 제5항, 또는 제9항 중 어느 한 항에 따른 촉매의 존재하에 환원성 화합물과 산화질소 화합물을 함유하는 가스 스트림을 접촉하는 것으로 구성되는, 산화질소 화합물을 선택적으로 전환시키기 위한 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960044377A 1995-10-09 1996-10-07 산화질소화합물전환용촉매및방법 KR100426542B1 (ko)

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KR1019960045758A KR100213183B1 (ko) 1995-10-09 1996-10-14 자동차 배기가스 정화용 촉매 및 그 제조방법

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KR100314758B1 (ko) * 1999-10-19 2001-11-15 이종훈 배기가스에 함유된 질소산화물 제거용 오산화바나듐계 촉매 및그 제조방법

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2414989A1 (en) * 2000-07-03 2003-01-02 Basf Aktiengesellschaft Improved catalyst and method for producing polytetrahydrofurane
KR100533877B1 (ko) * 2003-05-03 2005-12-29 동양종합건설 주식회사 다이옥신을 포함한 방향족할로겐화합물, 일산화탄소 및질소산화물을 제거하는 촉매 및 이의 용도
KR100840721B1 (ko) 2007-04-02 2008-06-23 아주대학교산학협력단 산화질소 제거용 촉매의 제조방법 및 이로부터 제조된산화질소 제거용 촉매
US20110116999A1 (en) * 2008-03-25 2011-05-19 Yasuyoshi Kato Exhaust gas purification catalyst on which influence of iron compound has been suppressed
US8758711B2 (en) * 2010-12-20 2014-06-24 Mitsubishi Heavy Industries, Ltd. Carrier for NOx reduction catalyst
US9242211B2 (en) 2011-05-30 2016-01-26 The Babcock & Wilcox Company Catalysts possessing an improved resistance to poisoning
US10668459B2 (en) * 2014-10-02 2020-06-02 Cataler Corporation Exhaust gas purification catalyst
ES2836701T3 (es) 2015-05-15 2021-06-28 Venator Germany Gmbh Oxido de titanio en polvo, procedimiento para su preparación y su uso
US20180326354A1 (en) 2015-11-18 2018-11-15 Shell Oil Company Improved process for removing nox from exhaust gas
US11020732B2 (en) 2015-12-22 2021-06-01 Shell Oil Company Catalyst bed and method for reducing nitrogen oxides
WO2017112618A1 (en) 2015-12-22 2017-06-29 Shell Oil Company A reactor for reducing nitrogen oxides
CN108472584A (zh) * 2015-12-22 2018-08-31 国际壳牌研究有限公司 催化剂床和用于还原氮氧化物的方法
US20180272318A1 (en) * 2016-09-12 2018-09-27 The Chugoku Electric Power Co., Inc. Denitration catalyst and method for producing the same
EP3840861A1 (en) 2018-08-22 2021-06-30 Shell Internationale Research Maatschappij B.V. A selective catalytic reduction process and method of regenerating a deactivated catalyst of the process
WO2020041140A1 (en) 2018-08-22 2020-02-27 Shell Oil Company A selective catalytic reduction process and method of regenerating deactivated scr catalyst of a parallel flue gas treating system
CA3108891A1 (en) 2018-08-22 2020-02-27 Shell Internationale Research Maatschappij B.V. A selective catalytic reduction process and off-line regeneration of deactivated catalyst of the process
US11839851B2 (en) 2021-05-10 2023-12-12 Shell Usa, Inc. Reactor system including a catalyst bed module and process for the selective catalytic reduction of nitrogen oxides contained in gas streams

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061596A (en) * 1974-12-02 1977-12-06 Mitsubishi Chemical Industries Ltd. Process for preparing titanium oxide shaped carrier
GB1541928A (en) * 1975-12-23 1979-03-14 Sakai Chemical Industry Co Production of shaped catalysts or carriers comprising titanium oxide
JPS5915022B2 (ja) * 1976-03-26 1984-04-07 株式会社日立製作所 排ガス中の窒素酸化物除去用触媒
CA1291743C (en) * 1986-07-25 1991-11-05 Makoto Imanari Catalyst for removing nitrogen oxides in exhaust gases
CA1310005C (en) 1986-09-13 1992-11-10 Hiroaki Rikimaru Catalyst and a method for denitrizing nitrogen oxides contained in waste gases
CA1297470C (en) 1986-09-30 1992-03-17 Hiroaki Rikimaru Catalyst and a method for denitrizing nitrogen oxides contained in waste gases
JPH0817939B2 (ja) * 1986-11-19 1996-02-28 三菱化学株式会社 排煙脱硝触媒
JP2583911B2 (ja) * 1987-10-26 1997-02-19 バブコツク日立株式会社 窒素酸化物除去用触媒
DE3736478A1 (de) * 1987-10-28 1989-05-11 Huels Chemische Werke Ag Verfahren zur herstellung eines gegen arsenvergiftung resistenten katalysators zur entfernung von stickoxiden aus abgasen
JP2653799B2 (ja) * 1987-11-16 1997-09-17 バブコツク日立株式会社 窒素酸化物の除去方法および該方法に用いる触媒
US5225390A (en) * 1988-02-23 1993-07-06 Siemens Aktiengesellschaft Catalyst for reducing nitrogen oxides
DE3805564A1 (de) * 1988-02-23 1989-08-31 Siemens Ag Katalysator zur minderung der stickoxide und verfahren zu seiner herstellung
DE3816599C1 (en) * 1988-05-14 1989-03-16 Huels Ag, 4370 Marl, De Process for eliminating arsenic compounds from exhaust gases
US5169619A (en) * 1988-05-28 1992-12-08 Sakai Chemical Industry Co., Ltd. Method of producing titanium oxides
US4929586A (en) * 1988-06-09 1990-05-29 W. R. Grace & Co.-Conn. Catalysts for selective catalytic reduction DeNOx technology
US5137855A (en) * 1988-06-09 1992-08-11 W. R. Grace & Co.-Conn. Catalysts for selective catalytic reduction denox technology
DE3906136C1 (ko) * 1989-02-28 1990-08-09 Degussa Ag, 6000 Frankfurt, De
US5198403A (en) * 1989-02-28 1993-03-30 Degussa Ag Process for producing a catalyst for selective reduction of nitrous oxides with ammonia
GB8906726D0 (en) 1989-03-23 1989-05-10 Shell Int Research Titania extrudates
DE4012479A1 (de) * 1990-04-19 1991-10-24 Degussa Titandioxidpresslinge, verfahren zu ihrer herstellung sowie ihre verwendung
RU1799287C (ru) * 1990-09-17 1993-02-28 Институт катализа СО РАН Способ очистки газов от оксидов азота
FR2684899B1 (fr) * 1991-12-16 1994-03-25 Rhone Poulenc Chimie Catalyseur de reduction selective des oxydes d'azote contenus dans un flux gazeux et application desdits catalyseurs.
JP3352494B2 (ja) * 1993-03-25 2002-12-03 三井鉱山株式会社 窒素酸化物分解触媒及びそれを用いた脱硝方法
DE4321555C1 (de) * 1993-06-29 1994-09-15 Bayer Ag Verfahren zur Herstellung von Mischoxidpulvern für Entstickungskatalysatoren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100314758B1 (ko) * 1999-10-19 2001-11-15 이종훈 배기가스에 함유된 질소산화물 제거용 오산화바나듐계 촉매 및그 제조방법

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KR970020188A (ko) 1997-05-28
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US6419889B1 (en) 2002-07-16
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