ZA917323B - Process and apparatus for removing nox from gas streams - Google Patents
Process and apparatus for removing nox from gas streamsInfo
- Publication number
- ZA917323B ZA917323B ZA917323A ZA917323A ZA917323B ZA 917323 B ZA917323 B ZA 917323B ZA 917323 A ZA917323 A ZA 917323A ZA 917323 A ZA917323 A ZA 917323A ZA 917323 B ZA917323 B ZA 917323B
- Authority
- ZA
- South Africa
- Prior art keywords
- gas streams
- removing nox
- nox
- streams
- gas
- Prior art date
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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Treating Waste Gases (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58247790A | 1990-09-14 | 1990-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA917323B true ZA917323B (en) | 1992-05-27 |
Family
ID=24329309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA917323A ZA917323B (en) | 1990-09-14 | 1991-09-13 | Process and apparatus for removing nox from gas streams |
Country Status (9)
Country | Link |
---|---|
US (2) | US5342599A (fr) |
EP (1) | EP0548255B1 (fr) |
JP (1) | JPH06501198A (fr) |
CN (1) | CN1032240C (fr) |
AU (1) | AU659413B2 (fr) |
DE (1) | DE69115495T2 (fr) |
MX (1) | MX9101084A (fr) |
WO (1) | WO1992004962A1 (fr) |
ZA (1) | ZA917323B (fr) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04305226A (ja) * | 1991-01-25 | 1992-10-28 | Senichi Masuda | ガス中窒素酸化物の低減方法 |
US5707596A (en) * | 1995-11-08 | 1998-01-13 | Process Combustion Corporation | Method to minimize chemically bound nox in a combustion process |
US5992141A (en) * | 1996-04-02 | 1999-11-30 | Kleen Air Systems, Inc. | Ammonia injection in NOx control |
US6071481A (en) * | 1996-08-08 | 2000-06-06 | Mathews; Loren T. | Zero grade air generating system |
US5809775A (en) * | 1997-04-02 | 1998-09-22 | Clean Diesel Technologies, Inc. | Reducing NOx emissions from an engine by selective catalytic reduction utilizing solid reagents |
DE19728343C5 (de) * | 1997-07-03 | 2013-02-21 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur selektiven katalytischen NOx-Reduktion |
JP2001523165A (ja) * | 1997-12-12 | 2001-11-20 | エフエーファウ・モトーレンテヒニク・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディトゲゼルシャフト | 酸素を含む排ガス特に内燃機関の排ガス内の窒素酸化物を還元する方法 |
WO1999056858A2 (fr) * | 1998-04-30 | 1999-11-11 | Siemens Aktiengesellschaft | Procede et dispositif pour la reduction catalytique des oxydes d'azote |
US7070746B1 (en) | 1999-05-26 | 2006-07-04 | Solutia Inc. | Process for nitrous oxide purification |
US6152053A (en) * | 1999-07-30 | 2000-11-28 | Abb Alstom Power Inc. | Method and assembly for converting waste water accumulated in a fossil fuel-fired power generation system |
GB2414692B (en) * | 2003-03-01 | 2006-09-13 | Imi Vision Ltd | Improvements in engine emissions |
FR2867808B1 (fr) * | 2004-03-17 | 2006-04-28 | Peugeot Citroen Automobiles Sa | Dispositif de generation d'ammoniac et vehicule comportant un tel dispositif |
US8495869B2 (en) | 2010-11-02 | 2013-07-30 | Girtz Industries Inc. | Power systems with internally integrated aftertreatment and modular features |
WO2012129815A1 (fr) * | 2011-04-01 | 2012-10-04 | 深圳市泓耀环境科技发展股份有限公司 | Procédé et équipement pour la dénitrification d'un déchet gazeux produit par un système de combustion |
CN102553412A (zh) * | 2012-02-10 | 2012-07-11 | 山东大学 | 一种利用高反应活性氨基还原剂进行烟气脱硝的方法 |
FI123812B (fi) * | 2012-02-17 | 2013-11-15 | Ecocat Oy | Pinnoite typen oksidien pelkistämiseksi |
CN103506109B (zh) * | 2013-09-24 | 2015-07-08 | 上海纳米技术及应用国家工程研究中心有限公司 | 一种碱液表面处理的氧化铬催化剂及其制备和应用 |
CN104971605A (zh) * | 2015-06-24 | 2015-10-14 | 方耀 | 一种燃煤烟气处理方法 |
CN105771583A (zh) * | 2016-03-21 | 2016-07-20 | 孙若浩 | 一种脱硝剂以及使用该脱硝剂对烟气进行净化的方法 |
CN105727713A (zh) * | 2016-03-21 | 2016-07-06 | 孙若浩 | 一种使用脱硫脱硝剂对烟气进行净化的方法 |
US10267196B1 (en) * | 2016-09-14 | 2019-04-23 | Southwest Research Institute | Treatment of reductant urea solutions with catalyst precursors to assist selective catalytic reduction |
CN106268221B (zh) * | 2016-09-21 | 2019-10-18 | 山东大学 | 一种利用三聚氰胺废弃物进行烟气脱硝的方法 |
JP6817060B2 (ja) * | 2016-12-28 | 2021-01-20 | アース製薬株式会社 | 除菌剤 |
US10378411B1 (en) | 2018-01-03 | 2019-08-13 | Southwest Research Institute | Dosing method and apparatus for reductant urea solutions with catalyst precursors to assist selective catalytic reduction |
US10774715B1 (en) | 2018-03-27 | 2020-09-15 | Southwest Research Institute | Stabilization of aqueous urea solutions containing organometallic catalyst precursors |
KR102590297B1 (ko) * | 2018-05-16 | 2023-10-18 | 가부시키가이샤 닛폰 쇼쿠바이 | 흡수성 수지 분말, 및 그의 제조 방법 |
CN110898647A (zh) * | 2019-11-19 | 2020-03-24 | 上海众仕环境科技股份有限公司 | 一种热控释氨的疏水性粉末脱硝剂、制备方法及应用 |
Family Cites Families (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA654427A (en) * | 1962-12-18 | Veb Farbenfabrik Wolfen | Process for the removal of nitrogen oxides from so2 and/or so3-containing gases | |
CA639883A (en) * | 1962-04-17 | Dr. C. Otto And Comp. Ges. Mit Beschrankter Haftung | Extraction of hydrocyanic acid from gases | |
US3746498A (en) * | 1972-01-24 | 1973-07-17 | Combustion Eng | Reducing no{11 {11 emissions by additive injection |
JPS5141026B2 (fr) * | 1972-09-20 | 1976-11-08 | ||
US4028275A (en) * | 1973-01-24 | 1977-06-07 | Mitsui Mining & Smelting Co., Ltd. | Process for preparing catalytic materials for purifying exhaust gas and catalytic materials prepared thereby |
US3900554A (en) * | 1973-03-16 | 1975-08-19 | Exxon Research Engineering Co | Method for the reduction of the concentration of no in combustion effluents using ammonia |
JPS568652B2 (fr) * | 1973-09-07 | 1981-02-25 | ||
JPS51137670A (en) * | 1975-05-26 | 1976-11-27 | Asahi Chem Ind Co Ltd | Method for decreasing nitrogen oxides in exhaust gas |
JPS5291776A (en) * | 1976-01-30 | 1977-08-02 | Mitsubishi Heavy Ind Ltd | Treatment of nitrogen oxides in exhaust gas |
US4208386A (en) * | 1976-03-03 | 1980-06-17 | Electric Power Research Institute, Inc. | Urea reduction of NOx in combustion effluents |
JPS52113363A (en) * | 1976-03-19 | 1977-09-22 | Hitachi Ltd | Method and apparatus of hydrazine injection at denitration plant |
US4199554A (en) * | 1977-01-21 | 1980-04-22 | Kureha Kagaku Kogyo Kabushiki Kaisha | Method of and apparatus for removing nitrogen oxides from the gases containing nitrogen oxides |
JPS5428771A (en) * | 1977-08-08 | 1979-03-03 | Asahi Fibreglass Co | Waste gas treatment |
JPS5446172A (en) * | 1977-09-21 | 1979-04-11 | Hitachi Ltd | Reducing method for nitrogen oxides in combustion gas |
US4325924A (en) * | 1977-10-25 | 1982-04-20 | Electric Power Research Institute, Inc. | Urea reduction of NOx in fuel rich combustion effluents |
US4395223A (en) * | 1978-06-09 | 1983-07-26 | Hitachi Shipbuilding & Engineering Co., Ltd. | Multi-stage combustion method for inhibiting formation of nitrogen oxides |
US4216191A (en) * | 1979-05-01 | 1980-08-05 | Exxon Research & Engineering Co. | Method of preparing inorganic-alkali metal salts |
US4335084A (en) * | 1980-01-24 | 1982-06-15 | Roldiva, Inc. | Method for reducing NOx emissions from combustion processes |
US4368057A (en) * | 1980-10-14 | 1983-01-11 | Matthews Ronald D | Method for reducing ammonia concentration in pre-combusted fuel gas using nitric oxide |
US4372933A (en) * | 1982-04-29 | 1983-02-08 | Ashland Oil, Inc. | Production of isocyanic acid |
US4372934A (en) * | 1982-06-07 | 1983-02-08 | Ashland Oil, Inc. | Production of isocyanic acid |
DE3224766A1 (de) * | 1982-07-02 | 1984-01-05 | Henkel KGaA, 4000 Düsseldorf | Verfahren zur herstellung von blei- und zinkcyanuraten |
US4432959A (en) * | 1982-08-03 | 1984-02-21 | Shikoku Chemicals Corporation | Process of producing sodium cyanuarate |
DE3428231A1 (de) * | 1983-12-16 | 1985-07-04 | Süd-Chemie AG, 8000 München | Verfahren zur entfernung von stickoxiden aus abgasen |
DE3409859A1 (de) * | 1984-03-17 | 1985-09-19 | Brown, Boveri & Cie Ag, 6800 Mannheim | Denitrierung von abgasen |
US4649038A (en) * | 1984-10-02 | 1987-03-10 | Temple University | Cyanogen polymers and pyropolymers and fibers thereof |
US4719092A (en) * | 1985-10-04 | 1988-01-12 | Fuel Tech, Inc. | Reduction of nitrogen-based pollutants through the use of urea solutions containing oxygenated hydrocarbon solvents |
US4645652A (en) * | 1985-11-29 | 1987-02-24 | General Electric Company | Method for scrubbing sulfur oxides and nitrogen oxides in a flue gas duct |
US4731233A (en) * | 1986-01-09 | 1988-03-15 | Thompson Richard E | Method and composition for utilizing lime-urea hydrates to simultaneously reduce NOx and SOx in combustion effluents |
US4800068A (en) * | 1986-05-05 | 1989-01-24 | Perry Robert A | System for NO reduction using sublimation of cyanuric acid |
US4731231A (en) * | 1986-05-05 | 1988-03-15 | Robert A. Perry | NO reduction using sublimation of cyanuric acid |
US4908193A (en) * | 1986-05-05 | 1990-03-13 | Perry Robert A | No reduction using sublimation of cyanuric acid |
US4886650A (en) * | 1986-05-05 | 1989-12-12 | Robert Perry | No reduction using sublimation of cyanuric acid |
US4861567A (en) * | 1987-04-16 | 1989-08-29 | Energy And Environmental Research Corporation | Methods of reducing NOx and SOx emissions from combustion systems |
US4851201A (en) * | 1987-04-16 | 1989-07-25 | Energy And Environmental Research Corporation | Methods of removing NOx and SOx emissions from combustion systems using nitrogenous compounds |
US4966817A (en) * | 1987-09-23 | 1990-10-30 | Temple University | Transition-metal-carbon composites and methods for making |
JP2607548B2 (ja) * | 1987-10-09 | 1997-05-07 | 三菱重工業株式会社 | 排ガスの処理方法 |
WO1989007004A1 (fr) * | 1988-02-02 | 1989-08-10 | Dale Gordon Jones | Procede et appareil mettant en oeuvre une injection dans une chaudiere a deux etages pour la reduction des oxydes d'azote |
DE3839199A1 (de) * | 1988-11-19 | 1990-05-31 | Karl Heinz Dipl Phys Krieb | Verfahren zur minderung des stickoxidgehaltes von verbrennungsgasen |
US4980040A (en) * | 1989-06-26 | 1990-12-25 | Trustees Of Boston University | Photopromoted method for decomposing oxides of nitrogen into environmentally compatible products |
US5137703A (en) * | 1989-06-26 | 1992-08-11 | Trustees Of Boston University | Thermal catalytic methods for converting oxides of nitrogen into environmentally compatible products |
ATE129987T1 (de) * | 1989-07-28 | 1995-11-15 | Chemie Linz Gmbh | Verfahren zur abtrennung von isocyansäure aus einem gemisch von isocyansäure und ammoniak. |
US5020457A (en) * | 1990-06-22 | 1991-06-04 | The United States Of America As Represented By The United States Department Of Energy | Destruction of acid gas emissions |
US5240688A (en) * | 1990-08-01 | 1993-08-31 | Fuel Tech Gmbh | Process for the in-line hydrolysis of urea |
US5087431A (en) * | 1990-09-20 | 1992-02-11 | Molecular Technology Corporation | Catalytic decomposition of cyanuric acid and use of product to reduce nitrogen oxide emissions |
US5234670A (en) * | 1990-09-20 | 1993-08-10 | Molecular Technology Corporation | Reduction of nitrogen oxide in effluent gases using NCO radicals |
US5171558A (en) * | 1990-09-20 | 1992-12-15 | Molecular Technology Corporation | Catalytic decomposition of cyanuric acid and use of product to reduce nitrogen oxide emissions |
-
1990
- 1990-12-11 US US07/626,059 patent/US5342599A/en not_active Expired - Fee Related
-
1991
- 1991-09-13 MX MX9101084A patent/MX9101084A/es unknown
- 1991-09-13 AU AU86553/91A patent/AU659413B2/en not_active Ceased
- 1991-09-13 JP JP3516277A patent/JPH06501198A/ja active Pending
- 1991-09-13 EP EP91917577A patent/EP0548255B1/fr not_active Expired - Lifetime
- 1991-09-13 ZA ZA917323A patent/ZA917323B/xx unknown
- 1991-09-13 WO PCT/US1991/006638 patent/WO1992004962A1/fr active IP Right Grant
- 1991-09-13 DE DE69115495T patent/DE69115495T2/de not_active Expired - Fee Related
- 1991-09-14 CN CN91109772A patent/CN1032240C/zh not_active Expired - Fee Related
-
1993
- 1993-12-13 US US08/166,253 patent/US5693300A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1060613A (zh) | 1992-04-29 |
US5342599A (en) | 1994-08-30 |
EP0548255B1 (fr) | 1995-12-13 |
JPH06501198A (ja) | 1994-02-10 |
CN1032240C (zh) | 1996-07-10 |
AU659413B2 (en) | 1995-05-18 |
DE69115495T2 (de) | 1996-05-09 |
AU8655391A (en) | 1992-04-15 |
WO1992004962A1 (fr) | 1992-04-02 |
US5693300A (en) | 1997-12-02 |
DE69115495D1 (de) | 1996-01-25 |
MX9101084A (es) | 1992-05-04 |
EP0548255A1 (fr) | 1993-06-30 |
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