KR950702866A - 동일계내에서 결정화되는 전이 금속-함유 제올라이트를 사용하여 린 번(lean burn) 내연 기관 배기중에서 자동차의 NOx 방출을 감소시키는 방법(METHOD FOR REDUClNG AUTOMOTlVE NOx EMISSIONS lN LEAN BURN lNTERNAL COM-BUSTION ENGlNE EXHAUST USlNG A TRANSITION METAL-CONTAINTNG ZEOLITE CATALYST WHlCH IS lN-SITU CRYSTALlLIZED) - Google Patents
동일계내에서 결정화되는 전이 금속-함유 제올라이트를 사용하여 린 번(lean burn) 내연 기관 배기중에서 자동차의 NOx 방출을 감소시키는 방법(METHOD FOR REDUClNG AUTOMOTlVE NOx EMISSIONS lN LEAN BURN lNTERNAL COM-BUSTION ENGlNE EXHAUST USlNG A TRANSITION METAL-CONTAINTNG ZEOLITE CATALYST WHlCH IS lN-SITU CRYSTALlLIZED) Download PDFInfo
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- KR950702866A KR950702866A KR1019950700467A KR19950700467A KR950702866A KR 950702866 A KR950702866 A KR 950702866A KR 1019950700467 A KR1019950700467 A KR 1019950700467A KR 19950700467 A KR19950700467 A KR 19950700467A KR 950702866 A KR950702866 A KR 950702866A
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- situ
- zeolite
- transition
- metal
- lean burn
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- 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
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
- B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
- B01J29/46—Iron group metals or copper
-
- 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
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
-
- 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
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/208—Hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/204—Alkaline earth metals
-
- 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
- B01D2255/504—ZSM 5 zeolites
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
본 발명은 린 번 조건하에서 작동하는 내연 기관으로부터 방출되는 배기 가스에서 NOx감소와 같은 고속 유동에 적용하기 위한 NOx를 환원시키는 방법에 관한 것으로, 이때 NOx는 탄화수소 환원제애 의해 환원된다. 본 발명에 따른 방법은 XSM-5 결정핵, 실리카 및 결정성 실리케이트를 포함하는 응집체를 동일계내에서 결정화시켜 제조된 전이금속을 함유하는 XSM-5를 포함하는 열수적으로 안정한 촉매를 사용한다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (18)
- 탄화수소 대 질소 산화물의 몰 비율이 적어도 화합양론적 비율로 되어 있는 비기 가스를 적어도 300℃의 온도에서 전이 금속, 및 ZSM-5 결정핵(seed), 실리카 및 결정성 실리케이트를 포함하는 응집체의 동일계내 결정화에 의해 제조된 ZSM-5 구조를 갖는 제올라이트를 함유하며, 800℃에서 5시간동안 에이징시킨 후에 절대 NOx전환 활성이 30% 이상이 될 수 있는 열수적으로 안정한 촉매와 접촉시켜 실질적으로 탄화수소 환원제에 의해 환원반응이 수행되도록 함을 특징으로 하여, 린 번(lean burn) 조건하에서 작동하는 내연 기관으로 부터 방출되는 배기가스에 함유된 질소 산화물을 환원시키는 방법.
- 제1항에 있어서, 배기 가스의 탄원수소 대 질소 산화물의 몰 비율이 화학양론적 비율의 1내지 10배 이며, 전이금속이 구리, 아연, 바나듐, 크롬, 망간, 철, 코발트, 니켈, 로듐, 팔라듐, 백금 및 몰리브덴으로 구성된 그룹 중에서 선택되는 방법.
- 제1항에 있어서, 제올라이트가 알카리 금속 이온 또는 알카리 토금속 이온을 함유하는 방법.
- 제1항에 있어서, 린 번 조건이 적어도 14.7의 공기 대 연료 비율을 포함하는 방법.
- 제1항에 있어서, 적어도 500℃에서 접촉을 수행하는 방법.
- 제1항에 있어서, 배기 가스를 매 시간마다 가스를 기본으로 하여 시간당 500,000vol/vol 이하의 공간 속도로 촉매와 접촉시키는 방법.
- 제1항에 있어서, 제올라이트가 비-점토 첨가된 실리카 공급원을 함유하는 응집체로 부터 제조되는 방법.
- 제1항에 있어서, 제올라이트가 유기 지향제의 존재하에서 제조되는 방법.
- 제8항에 있어서, 유기 지향체가 테트라알킬암모늄 할라이드인 방법.
- 제8항에 있어서, 유기 지향제가 테트라프로필암모늄 브로마이드인 방법.
- 제8항에 있어서, 유기 지향제가 n-알킬아민인 방법.
- 제8항에 있어서, 유기 지향제가 n-프로필아민인 방법.
- 제1항에 있어서, 응집체가 카올린, 할로이사이트, 몬모릴로나이트, 일라이트 및 닥카이트 중에서 선택된 점토 성분을 함유하는 방법.
- 제1항에 있어서, 응집체가 카올린을 함유하는 방법.
- 제1항에 있어서, 응집체를 제올라이트가 결정화되기 전에 적어도 540℃의 온도에서 하소시키는 방법.
- 제1항에 있어서, 응집체가 고속 유동 적용에 적합한 구조 형태인 방법.
- 제16항에 있어서, 응집체가 벌집형 모노리드, 타원형 및 원통형 중에서 선택된 형태인 방법.
- 제1항에 있어서, 촉매가 지지체 상의 와시 코트(wash coat)로서 제올라 이트를 포함하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/927,108 US5254322A (en) | 1992-08-10 | 1992-08-10 | Method for reducing automotive NOx emissions in lean burn internal combustion engine exhaust using a transition metal-containing zeolite catalyst which is in-situ crystallized |
US07/927108 | 1992-08-10 | ||
PCT/US1993/006781 WO1994003268A1 (en) | 1992-08-10 | 1993-07-20 | METHOD FOR REDUCING AUTOMATIVE NOx EMISSIONS IN LEAN BURN INTERNAL COMBUSTION ENGINE EXHAUST USING ZEOLITES |
Publications (1)
Publication Number | Publication Date |
---|---|
KR950702866A true KR950702866A (ko) | 1995-08-23 |
Family
ID=25454191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950700467A KR950702866A (ko) | 1992-08-10 | 1993-07-20 | 동일계내에서 결정화되는 전이 금속-함유 제올라이트를 사용하여 린 번(lean burn) 내연 기관 배기중에서 자동차의 NOx 방출을 감소시키는 방법(METHOD FOR REDUClNG AUTOMOTlVE NOx EMISSIONS lN LEAN BURN lNTERNAL COM-BUSTION ENGlNE EXHAUST USlNG A TRANSITION METAL-CONTAINTNG ZEOLITE CATALYST WHlCH IS lN-SITU CRYSTALlLIZED) |
Country Status (7)
Country | Link |
---|---|
US (1) | US5254322A (ko) |
EP (1) | EP0653962A1 (ko) |
JP (1) | JPH07509657A (ko) |
KR (1) | KR950702866A (ko) |
AU (1) | AU665453B2 (ko) |
CA (1) | CA2141564A1 (ko) |
WO (1) | WO1994003268A1 (ko) |
Families Citing this family (32)
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EP0630680B1 (en) * | 1993-06-25 | 1996-12-04 | Tosoh Corporation | Method for removal of nitrogen oxides |
US5925590A (en) * | 1994-05-25 | 1999-07-20 | Eltron Research, Inc. | Catalysts utilizing oxygen-deficient metal oxide compound for removal of exhaust gas constituents |
US5482692A (en) * | 1994-07-07 | 1996-01-09 | Mobil Oil Corporation | Selective catalytic reduction of nitrogen oxides using a ferrocene impregnated zeolite catalyst |
US5589147A (en) * | 1994-07-07 | 1996-12-31 | Mobil Oil Corporation | Catalytic system for the reducton of nitrogen oxides |
US5552129A (en) * | 1994-07-07 | 1996-09-03 | Mobil Oil Corporation | Catalytic system for the reduction of nitrogen oxides |
US5451387A (en) * | 1994-07-07 | 1995-09-19 | Mobil Oil Corporation | Selective catalytic reduction of nitrogen oxides using an iron impregnated zeolite catalyst |
US5520895A (en) * | 1994-07-07 | 1996-05-28 | Mobil Oil Corporation | Method for the reduction of nitrogen oxides using iron impregnated zeolites |
US5609022A (en) * | 1994-10-31 | 1997-03-11 | General Motors Corporation | Method of reducing NOx emissions from lean-burn combustion engines |
CA2141734C (en) * | 1995-01-25 | 2000-06-06 | Raj Narain Pandey | Selective catalytic reduction of nitrogen oxides |
US20040086441A1 (en) | 1995-12-06 | 2004-05-06 | Masao Hori | Process for purifying exhaust gas from gasoline engines |
US5804059A (en) * | 1997-01-30 | 1998-09-08 | Phillips Petroleum Company | Process of preparing a C6 to C8 hydrocarbon with a steamed, acid-leached, molybdenum containing mordenite catalyst |
US6143261A (en) * | 1997-12-15 | 2000-11-07 | Exxon Research And Engineering Company | Catalytic reduction of nitrogen oxide emissions with MCM-49 and MCM-56 |
US6033461A (en) * | 1998-01-02 | 2000-03-07 | Gas Research Institute | Selective nitrogen oxides adsorption from hot gas mixtures and thermal release by adsorbent |
US6143681A (en) * | 1998-07-10 | 2000-11-07 | Northwestern University | NOx reduction catalyst |
ES2160497B1 (es) * | 1999-06-17 | 2002-07-01 | Univ Valencia Politecnica | Catalizador para la eliminacion de oxidos de nitrogeno en presencia de oxigeno. |
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 |
ES2221531B1 (es) * | 2002-07-19 | 2006-02-16 | Consejo Superior De Investigaciones Cientificas | Monolitos zeoliticos estabilizados hidrotermalmente para la depuracion de fluidos. |
JP2011056347A (ja) * | 2009-09-07 | 2011-03-24 | Toshiba Corp | 触媒フィルタ及び触媒装置 |
EP2308596B1 (en) | 2009-10-07 | 2016-09-21 | Ford Global Technologies, LLC | Cu/zeolite SCR catalyst for NOx reduction in exhaust gases and manufacture method thereof |
US9221015B2 (en) | 2010-07-15 | 2015-12-29 | Basf Se | Copper containing ZSM-34, OFF and/or ERI zeolitic material for selective reduction of NOx |
WO2012007873A1 (en) * | 2010-07-15 | 2012-01-19 | Basf Se | Copper containing zsm-34, off and/or eri zeolitic material for selective reduction of nox |
JP2013533804A (ja) * | 2010-07-15 | 2013-08-29 | ビーエーエスエフ ソシエタス・ヨーロピア | NOxの選択的還元用の銅含有ZSM−34、OFF及び/又はERIゼオライト系材料 |
EP2811983B1 (en) | 2012-09-17 | 2019-05-01 | W.R. Grace & CO. - CONN. | Functionalized particulate support material and methods of making and using the same |
RU2015114330A (ru) | 2012-09-17 | 2016-11-10 | У.Р. Грейс Энд Ко.-Конн. | Хроматографические среды и устройства |
US9717930B2 (en) | 2013-03-12 | 2017-08-01 | The Procter & Gamble Company | Antiperspirant compositions |
DE102013015117A1 (de) * | 2013-09-12 | 2015-03-12 | Johnson Matthey Catalysts (Germany) Gmbh | Katalysator sowie Verfahren zur Stickoxidminderung in einem Abgas |
WO2015109068A1 (en) | 2014-01-16 | 2015-07-23 | W. R. Grace & Co.-Conn. | Affinity chromatography media and chromatography devices |
PL3137209T3 (pl) | 2014-05-02 | 2023-01-02 | W.R. Grace & Co. - Conn. | Funkcjonalizowany materiał nośnikowy i sposoby wytwarzania oraz stosowania funkcjonalizowanego materiału nośnikowego |
SG10201911134QA (en) | 2015-06-05 | 2020-01-30 | Grace W R & Co | Adsorbent bioprocessing clarification agents and methods of making and using the same |
DE102016212855A1 (de) | 2015-08-27 | 2017-03-02 | Ford Global Technologies, Llc | SCR Katalysator für Stickoxidreduktion bei hohen Temperaturen |
CN112110457B (zh) * | 2020-09-23 | 2022-02-11 | 中国海洋石油集团有限公司 | 一种定向堆砌生长的zsm-5纳米薄片团聚体的制备方法 |
CN116351462B (zh) * | 2023-06-02 | 2023-09-15 | 潍坊正轩稀土催化材料有限公司 | 一种甲醇制丙烯催化剂及其制备方法 |
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US4091007A (en) * | 1972-12-01 | 1978-05-23 | Mobil Oil Corporation | Preparation of zeolites |
JPS5374467A (en) * | 1976-12-15 | 1978-07-01 | Toshiba Corp | Electronic watch |
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US4522705A (en) * | 1984-06-13 | 1985-06-11 | Mobil Oil Corporation | Octane enhancement and total liquid product yield improvements in catalytic cracking using in-situ crystallized ZSM-5 clay aggregates |
JPH0611381B2 (ja) * | 1986-10-17 | 1994-02-16 | 株式会社豊田中央研究所 | 排ガス浄化方法 |
US4800187A (en) * | 1987-10-28 | 1989-01-24 | Corning Glass Works | Method of crystallizing a zeolite on the surface of a monolithic ceramic substrate |
DE68916186T2 (de) * | 1988-11-18 | 1995-01-26 | Corning Inc | Molekularsieb-Palladium-Platinum-Katalysator auf einem Substrat. |
US5223236A (en) * | 1988-12-16 | 1993-06-29 | Tosoh Corporation | Method for exhaust gas cleaning |
JPH07106300B2 (ja) * | 1989-12-08 | 1995-11-15 | 財団法人産業創造研究所 | 燃焼排ガス中の窒素酸化物除去法 |
US5149511A (en) * | 1991-10-07 | 1992-09-22 | Ford Motor Company | Method of selectively reducing NOx |
-
1992
- 1992-08-10 US US07/927,108 patent/US5254322A/en not_active Expired - Fee Related
-
1993
- 1993-07-20 EP EP93917281A patent/EP0653962A1/en not_active Withdrawn
- 1993-07-20 KR KR1019950700467A patent/KR950702866A/ko not_active Application Discontinuation
- 1993-07-20 WO PCT/US1993/006781 patent/WO1994003268A1/en not_active Application Discontinuation
- 1993-07-20 AU AU46844/93A patent/AU665453B2/en not_active Ceased
- 1993-07-20 JP JP6505340A patent/JPH07509657A/ja active Pending
- 1993-07-20 CA CA002141564A patent/CA2141564A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU665453B2 (en) | 1996-01-04 |
JPH07509657A (ja) | 1995-10-26 |
CA2141564A1 (en) | 1994-02-17 |
EP0653962A1 (en) | 1995-05-24 |
AU4684493A (en) | 1994-03-03 |
US5254322A (en) | 1993-10-19 |
WO1994003268A1 (en) | 1994-02-17 |
EP0653962A4 (en) | 1995-03-27 |
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