KR970005369A - NOx를 무해물질로 전환시키는 방법 - Google Patents

NOx를 무해물질로 전환시키는 방법 Download PDF

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Publication number
KR970005369A
KR970005369A KR1019960030310A KR19960030310A KR970005369A KR 970005369 A KR970005369 A KR 970005369A KR 1019960030310 A KR1019960030310 A KR 1019960030310A KR 19960030310 A KR19960030310 A KR 19960030310A KR 970005369 A KR970005369 A KR 970005369A
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South Korea
Prior art keywords
iron
zeolite
zsm
monolithic structure
powder
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KR1019960030310A
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English (en)
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호스더그 스와루프 스리니바스
라오 위시리카 라자
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알프레드 엘. 미첼슨
코닝 인코오포레이티드
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Publication of KR970005369A publication Critical patent/KR970005369A/ko

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    • 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
    • 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • 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
    • B01D2255/20738—Iron
    • 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
    • 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
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths

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

Abstract

본 발명은 NOx를 무해물질로 전환시키는 방법으로서, 상기 방법은 철 함량이 약 1중량％ 내지 5 중량％인 적어도 약 10 :1의 실리카와 알루미나의 몰비율을 갖는 철- ZSM-5 모노리딕 구조의 제올라이트를 제공하는 단계 및 적어도 약 200℃의 온도 범위에서 암모니아 존재하에 상기 제올라이트를 NOx- 함유 워크스트림과 접촉시키는 단계를 포함한다.

Description

NOx를 무해물질로 전환시키는 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (7)

  1. 철 함량이 약 1중량％ 내지 5 중량％인 적어도 약 10 :1의 실리카와 알루미나의 몰비율을 갖는 철- ZSM-5 모노리딕 구조의 제올라이트를 제공하는 단계 및 적어도 약 200℃의 온도 범위에서 암모니아 존재하에 상기 제올라이트를 NOx- 함유 워크스트림과 접촉시키는 단계로 이루어진 것을 특징으로 하는 NOx를 무해물질로 전환시키는 방법.
  2. 제1항에 있어서, 상기 온도가 약 250℃ 내지 600℃ 이며, 상기 NOx의 적어도 약 70 중량％가 무해물질로 전환되는 것을 특징으로 하는 방법.
  3. 제2항에 있어서, 상기 온도가 약 300℃ 내지 600℃ 이며, 상기 NOx의 적어도 약 90 중량％가 무해물질로 전환되는 것을 특징으로 하는 방법.
  4. 제1항에 있어서, 제올라이트 내의 상기 철 함량이 약 1.5％ 내지 3％인 것을 특징으로 하는 방법.
  5. 제1항에 있어서, 상기 모노리딕 구조가 허니컴으로서 제공되는 것을 특징으로 하는 방법.
  6. 제1항에 있어서, 상기 철- ZSM-5 제올라이트가 제올라이트 분말에 철 화합물을 주입한 다음 상기 제올라이트 모노리딕 구조로 성형시켜서 된 것임을 특징으로 하는 방법.
  7. 제1항에 있어서, 상기 철- ZSM-5 제올라이트의 철함량이 약 1.5％ 내지 3％가 될만한 양으로, 질산 제2철, 초산철, 황산 암모늄 제1철, 구연산 암모늄 제2철, 및 이의 결합물로 이루어진 군으로 부터 선택된 철염 용액을 ZSM-5 제올라이트 분말에 주입시키는 단계; 상기 철- ZSM-5 제올라이트 분말을 하소시킨후, 상기 철- ZSM-5 분말, 일시적인 바인더 및 실리콘 수지 바인더 혼합물을 형성시키는 단계; 상기 혼합물을 허티컴으로 압출시키는 단계; 및 상기 허니컴을 하소시켜 사기 철- ZSM-5 모노리딕 구조를 형성시키는 단계에 의해 상기 철- ZSM-5 제올라이트 모노리드가 제공되는 것을 특징으로 하는 방법
KR1019960030310A 1995-07-26 1996-07-25 NOx를 무해물질로 전환시키는 방법 KR970005369A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50671595A 1995-07-26 1995-07-26
US08/506,715 1995-07-26

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KR970005369A true KR970005369A (ko) 1997-02-19

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EP (1) EP0756891A1 (ko)
JP (1) JPH09103653A (ko)
KR (1) KR970005369A (ko)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19820515A1 (de) * 1998-05-08 1999-11-11 Alsi Penta Zeolithe Gmbh Verfahren zur Herstellung eines Katalysators für die Reinigung von Abgasen, die Stickstoffoxide in Gegenwart von Sauerstoff und Wasser enthalten
DE10001540B4 (de) * 2000-01-14 2005-06-23 Uhde Gmbh Beseitigung von Lachgas bei der Salpetersäureproduktion
DE10001539B4 (de) 2000-01-14 2006-01-19 Uhde Gmbh Verfahren zur Beseitigung von NOx und 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
DE10215605A1 (de) * 2002-04-09 2003-10-30 Uhde Gmbh Entstickungsverfahren
US7229597B2 (en) 2003-08-05 2007-06-12 Basfd Catalysts Llc Catalyzed SCR filter and emission treatment system
EP1791621A4 (en) * 2004-07-27 2010-09-22 Univ California CATALYSTS AND PROCESS FOR THE REDUCTION OF NITROGEN OXIDES
US7501105B2 (en) 2004-07-29 2009-03-10 N.E. Chemcat Corporation NOx reduction catalyst having excellent low-temperature characteristics
KR101394625B1 (ko) * 2007-06-25 2014-05-13 에스케이이노베이션 주식회사 선택적 촉매 환원 반응용 철 담지 제올라이트 촉매의제조방법
US8575059B1 (en) 2007-10-15 2013-11-05 SDCmaterials, Inc. Method and system for forming plug and play metal compound catalysts
JP2009262098A (ja) * 2008-04-28 2009-11-12 Ne Chemcat Corp 選択還元触媒を用いた排気ガス浄化方法
WO2009141875A1 (ja) 2008-05-20 2009-11-26 イビデン株式会社 ハニカム構造体
CN101679130B (zh) * 2008-05-20 2013-08-28 揖斐电株式会社 蜂窝结构体
JPWO2009141894A1 (ja) 2008-05-20 2011-09-22 イビデン株式会社 ハニカム構造体
WO2009141886A1 (ja) 2008-05-20 2009-11-26 イビデン株式会社 ハニカム構造体
JPWO2009141895A1 (ja) 2008-05-20 2011-09-22 イビデン株式会社 排ガス浄化装置
DE102009040352A1 (de) * 2009-09-05 2011-03-17 Johnson Matthey Catalysts (Germany) Gmbh Verfahren zur Herstellung eines SCR aktiven Zeolith-Katalysators sowie SCR aktiver Zeolith-Katalysator
JP5537350B2 (ja) 2009-11-05 2014-07-02 日本碍子株式会社 ゼオライト構造体及びその製造方法
WO2011061839A1 (ja) 2009-11-19 2011-05-26 イビデン株式会社 ハニカム構造体及び排ガス浄化装置
HUE026104T2 (en) * 2010-02-01 2016-05-30 Johnson Matthey Plc Extruded SCR filter
DE102010022775A1 (de) 2010-06-04 2011-12-08 Uhde Gmbh Verfahren und Vorrichtung zur Beseitigung von NOx und N2O
GB2493449B (en) 2011-08-03 2014-01-15 Johnson Matthey Plc Extruded honeycomb catalyst
DE102011121188A1 (de) 2011-12-16 2013-06-20 Thyssen Krupp Uhde Gmbh Vorrichtung und Verfahren zur Beseitigung von NOx und N20
GB2543166A (en) * 2014-02-28 2017-04-12 Johnson Matthey Plc SCR Catalysts having improved low temperature performance and methods of making and using the same
CN113509924B (zh) * 2021-05-22 2022-05-03 山东博霖环保科技发展有限公司 一种脱硝催化剂及其生产工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631267A (en) * 1985-03-18 1986-12-23 Corning Glass Works Method of producing high-strength high surface area catalyst supports
DE3723072A1 (de) * 1987-07-11 1989-01-19 Basf Ag Verfahren zur entfernung von stickoxiden aus abgasen
US5271913A (en) * 1989-12-28 1993-12-21 Mitsubishi Jukogyo Kabushiki Kaisha Denitration catalyst for high-temperature exhaust gas
US5633217A (en) * 1994-09-12 1997-05-27 Corning Incorporated Method of making a high strength catalyst, catalyst support or adsorber

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JPH09103653A (ja) 1997-04-22

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