ATE85032T1 - Ermaessigung stickstoffhaltiger schadstoffe durch verwendung von sauerstoffhaltiges kohlenwasserstoffloesungsmittel aufweisendem harnstoffloesungen. - Google Patents
Ermaessigung stickstoffhaltiger schadstoffe durch verwendung von sauerstoffhaltiges kohlenwasserstoffloesungsmittel aufweisendem harnstoffloesungen.Info
- Publication number
- ATE85032T1 ATE85032T1 AT86906556T AT86906556T ATE85032T1 AT E85032 T1 ATE85032 T1 AT E85032T1 AT 86906556 T AT86906556 T AT 86906556T AT 86906556 T AT86906556 T AT 86906556T AT E85032 T1 ATE85032 T1 AT E85032T1
- Authority
- AT
- Austria
- Prior art keywords
- effluent
- oxygenated hydrocarbon
- reduction
- hydrocarbon solvent
- contents
- 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
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/784,828 US4719092A (en) | 1985-10-04 | 1985-10-04 | Reduction of nitrogen-based pollutants through the use of urea solutions containing oxygenated hydrocarbon solvents |
EP86906556A EP0242394B1 (de) | 1985-10-04 | 1986-10-03 | Ermässigung stickstoffhaltiger schadstoffe durch verwendung von sauerstoffhaltiges kohlenwasserstofflösungsmittel aufweisendem harnstofflösungen |
PCT/US1986/002098 WO1987002024A1 (en) | 1985-10-04 | 1986-10-03 | Reduction of nitrogen-based pollutants through the use of urea solutions containing oxygenated hydrocarbon solvents |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE85032T1 true ATE85032T1 (de) | 1993-02-15 |
Family
ID=25133654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT86906556T ATE85032T1 (de) | 1985-10-04 | 1986-10-03 | Ermaessigung stickstoffhaltiger schadstoffe durch verwendung von sauerstoffhaltiges kohlenwasserstoffloesungsmittel aufweisendem harnstoffloesungen. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4719092A (de) |
EP (1) | EP0242394B1 (de) |
JP (1) | JPH07100131B2 (de) |
AT (1) | ATE85032T1 (de) |
AU (1) | AU592386B2 (de) |
CA (1) | CA1255475A (de) |
DD (1) | DD275620A5 (de) |
DE (2) | DE3687656T2 (de) |
WO (1) | WO1987002024A1 (de) |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4844878A (en) * | 1985-10-04 | 1989-07-04 | Fuel Tech, Inc. | Process for the reduction of nitrogen oxides in an effluent |
US4927612A (en) * | 1985-10-04 | 1990-05-22 | Fuel Tech, Inc. | Reduction of nitrogen- and carbon-based pollutants |
AU585670B2 (en) * | 1985-10-04 | 1989-06-22 | Fuel Tech. Inc. | Reduction of nitrogen- and carbon-based pollutants through the use of urea solutions |
US4830839A (en) * | 1987-02-13 | 1989-05-16 | Fuel Tech, Inc. | Ammonia scrubbing |
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 |
US5192338A (en) * | 1987-09-03 | 1993-03-09 | Commonwealth Scientific And Industrial Research Organisation | Coal ash modification and reduction |
ZA886518B (en) * | 1987-09-03 | 1989-05-30 | Commw Scient Ind Res Org | Coal ash modification and reduction |
JPH03503735A (ja) * | 1988-02-02 | 1991-08-22 | ジョーンズ,デイル ゴードン | 窒素酸化物の還元を目的とする2段ボイラー注入方法と装置 |
AU3282389A (en) * | 1988-02-26 | 1989-09-22 | Fuel Tech. Inc. | Process and injector for reducing the concentration of pollutants in an effluent |
AT390208B (de) * | 1988-05-09 | 1990-04-10 | Waagner Biro Ag | Verfahren zur entfernung von stickoxiden |
US4985218A (en) * | 1989-03-03 | 1991-01-15 | Fuel Tech, Inc. | Process and injector for reducing the concentration of pollutants in an effluent |
US5240689A (en) * | 1989-06-19 | 1993-08-31 | Noell, Inc. | Process using two-stage boiler injection for reduction of nitrogen |
EP0432166A1 (de) * | 1989-07-04 | 1991-06-19 | Fuel Tech Europe Limited | Lanzartiges injektionsgerät zum einbringen von chemikalien in abgase |
US5262138A (en) * | 1989-08-31 | 1993-11-16 | Union Oil Company Of California | Process for NOx abatement |
US4978514A (en) * | 1989-09-12 | 1990-12-18 | Fuel Tech, Inc. | Combined catalytic/non-catalytic process for nitrogen oxides reduction |
US4997631A (en) * | 1990-03-07 | 1991-03-05 | Fuel Tech, Inc. | Process for reducing nitrogen oxides without generating nitrous oxide |
US5543123A (en) * | 1990-08-01 | 1996-08-06 | Nalco Fuel Tech | Low pressure formation of a urea hydrolysate for nitrogen oxides reduction |
US5342599A (en) * | 1990-09-14 | 1994-08-30 | Cummins Power Generation, Inc. | Surface stabilized sources of isocyanic acid |
US5192515A (en) * | 1990-09-20 | 1993-03-09 | Molecular Technology Corporation | Reduction of nitrogen oxide and carbon monoxide in effluent gases |
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 |
US5078982A (en) * | 1990-09-20 | 1992-01-07 | Molecular Technology Corporation | Reduction of nitrogen oxide in effluent gases using formaldehyde |
US5171554A (en) * | 1990-09-20 | 1992-12-15 | Molecular Technology Corporation | Conversion of formaldehyde and nitrogen to a gaseous product and use of gaseous product in reduction of nitrogen oxide in effluent gases |
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 |
US5234671A (en) * | 1990-09-20 | 1993-08-10 | Molecular Technology Corporation | Reduction of nitrogen oxide in effluent gases using formaldehyde and/or formaldehyde-derived free radicals |
US5048432B1 (en) * | 1990-12-27 | 1996-07-02 | Nalco Fuel Tech | Process and apparatus for the thermal decomposition of nitrous oxide |
US5229090A (en) * | 1991-07-03 | 1993-07-20 | Nalco Fuel Tech | Process for nitrogen oxides reduction to lowest achievable level |
US5457223A (en) * | 1992-10-09 | 1995-10-10 | The Standard Oil Company | Process for elimination of waste material during manufacture of acrylonitrile |
US5536482A (en) * | 1992-10-13 | 1996-07-16 | Nalco Fuel Tech | Process for pollution control |
US5489419A (en) * | 1992-10-13 | 1996-02-06 | Nalco Fuel Tech | Process for pollution control |
US5478542A (en) * | 1992-11-23 | 1995-12-26 | Nalco Fuel Tech | Process for minimizing pollutant concentrations in combustion gases |
DE69416137T2 (de) * | 1993-05-07 | 1999-07-22 | Nalco Fuel Tech | VERFAHREN UND VORRICHTUNG ZUR VERBESSERUNG DER VERTEILUNG VON NOx-REDUZIERENDEN CHEMIKALIEN IN EINEM MEDIUM MIT HOHEM FESTSTOFFGEHALT |
US5404841A (en) * | 1993-08-30 | 1995-04-11 | Valentine; James M. | Reduction of nitrogen oxides emissions from diesel engines |
US5462718A (en) * | 1994-06-13 | 1995-10-31 | Foster Wheeler Energy Corporation | System for decreasing NOx emissions from a fluidized bed reactor |
US5658547A (en) * | 1994-06-30 | 1997-08-19 | Nalco Fuel Tech | Simplified efficient process for reducing NOx, SOx, and particulates |
CA2141734C (en) * | 1995-01-25 | 2000-06-06 | Raj Narain Pandey | Selective catalytic reduction of nitrogen oxides |
US6258336B1 (en) | 1995-06-09 | 2001-07-10 | Gas Research Institute | Method and apparatus for NOx reduction in flue gases |
US5728357A (en) * | 1996-04-10 | 1998-03-17 | Nalco Fuel Tech | Reduction of NOx emissions from rotary cement kilns by selective noncatalytic reduction |
US5681536A (en) * | 1996-05-07 | 1997-10-28 | Nebraska Public Power District | Injection lance for uniformly injecting anhydrous ammonia and air into a boiler cavity |
US5985222A (en) * | 1996-11-01 | 1999-11-16 | Noxtech, Inc. | Apparatus and method for reducing NOx from exhaust gases produced by industrial processes |
US6001152A (en) * | 1997-05-29 | 1999-12-14 | Sinha; Rabindra K. | Flue gas conditioning for the removal of particulates, hazardous substances, NOx, and SOx |
DE10021517C1 (de) * | 2000-05-03 | 2002-01-10 | Kuelps Heinz Juergen | Zurückdrängung und Verminderung der Hochtemperatur-Halogen-Korrosion in Verbrennungsanlagen durch den Einsatz von Wirkstoffen sowie Wirkstoff-Mischungen |
US6280695B1 (en) | 2000-07-10 | 2001-08-28 | Ge Energy & Environmental Research Corp. | Method of reducing NOx in a combustion flue gas |
US6436359B1 (en) | 2000-10-25 | 2002-08-20 | Ec&C Technologies, Inc. | Method for controlling the production of ammonia from urea for NOx scrubbing |
WO2003039737A1 (en) * | 2001-11-09 | 2003-05-15 | Clean Diesel Technologies, Inc. | Continuously-variable control of pollution reducing chemicals for combustion sources |
WO2008143962A1 (en) * | 2007-05-18 | 2008-11-27 | Enviormental Energy Services, Inc. | Method for measuring ash/slag deposition in a utility boiler |
US20090148370A1 (en) * | 2007-12-06 | 2009-06-11 | Spencer Iii Herbert W | Process to produce ammonia from urea |
ES2573638T3 (es) * | 2008-06-23 | 2016-06-09 | Hitachi Zosen Inova Ag | Procedimiento para inyectar una sustancia en una caldera de una planta de incineración de basuras |
FR2941869B1 (fr) * | 2009-02-10 | 2013-03-29 | Novergie | Procede de reduction des oxydes d'azote issus de la combustion des combustibles solides |
JP5812630B2 (ja) * | 2011-03-02 | 2015-11-17 | 三菱重工環境・化学エンジニアリング株式会社 | 廃棄物焼却プラント |
CN102721797B (zh) * | 2011-09-22 | 2014-11-05 | 辽宁省电力有限公司 | 无烟煤在热解中生成HCN/NH3与在锅炉中燃烧生成NOx的关联性的分析方法 |
US9586831B2 (en) | 2014-06-09 | 2017-03-07 | Wahlco, Inc. | Urea to ammonia process |
KR102104050B1 (ko) * | 2019-05-21 | 2020-04-24 | 오미혜 | 질소산화물 저감용 조성물 및 질소산화물을 저감시키는 방법 |
US11027237B2 (en) | 2019-07-19 | 2021-06-08 | American Electric Power Company, Inc. | Direct injection of aqueous urea |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JPS514588A (ja) * | 1974-07-01 | 1976-01-14 | Hitachi Ltd | Dohakanjitsusohoho |
US4208386A (en) * | 1976-03-03 | 1980-06-17 | Electric Power Research Institute, Inc. | Urea reduction of NOx in combustion effluents |
US4325924A (en) * | 1977-10-25 | 1982-04-20 | Electric Power Research Institute, Inc. | Urea reduction of NOx in fuel rich combustion effluents |
US4507269A (en) * | 1983-11-10 | 1985-03-26 | Exxon Research & Engineering Co. | Non-catalytic method for reducing the concentration of NO in combustion effluents by injection of ammonia at temperatures greater than about 1300 degree K |
US4624840A (en) * | 1983-11-10 | 1986-11-25 | Exxon Research & Engineering Company | Non-catalytic method for reducing the concentration of NO in combustion effluents by injection of ammonia at temperatures greater than about 1300° K. |
EP0237568A4 (de) * | 1985-10-04 | 1989-01-24 | Fuel Tech Inc | Verminderung der stickstoff- und kohlenstoffhaltigen schadstoffe. |
-
1985
- 1985-10-04 US US06/784,828 patent/US4719092A/en not_active Expired - Lifetime
-
1986
- 1986-10-03 AU AU65249/86A patent/AU592386B2/en not_active Ceased
- 1986-10-03 DE DE8686906556T patent/DE3687656T2/de not_active Revoked
- 1986-10-03 WO PCT/US1986/002098 patent/WO1987002024A1/en not_active Application Discontinuation
- 1986-10-03 AT AT86906556T patent/ATE85032T1/de not_active IP Right Cessation
- 1986-10-03 EP EP86906556A patent/EP0242394B1/de not_active Revoked
- 1986-10-03 JP JP61505543A patent/JPH07100131B2/ja not_active Expired - Lifetime
- 1986-10-03 DE DE198686906556T patent/DE242394T1/de active Pending
- 1986-10-06 CA CA000519895A patent/CA1255475A/en not_active Expired
-
1988
- 1988-10-14 DD DD88320784A patent/DD275620A5/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA1255475A (en) | 1989-06-13 |
EP0242394B1 (de) | 1993-01-27 |
WO1987002024A1 (en) | 1987-04-09 |
US4719092A (en) | 1988-01-12 |
DE242394T1 (de) | 1988-02-25 |
DE3687656D1 (de) | 1993-03-11 |
AU6524986A (en) | 1987-04-24 |
EP0242394A4 (de) | 1988-10-27 |
EP0242394A1 (de) | 1987-10-28 |
JPS63502087A (ja) | 1988-08-18 |
JPH07100131B2 (ja) | 1995-11-01 |
DD275620A5 (de) | 1990-01-31 |
DE3687656T2 (de) | 1993-05-19 |
AU592386B2 (en) | 1990-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE85032T1 (de) | Ermaessigung stickstoffhaltiger schadstoffe durch verwendung von sauerstoffhaltiges kohlenwasserstoffloesungsmittel aufweisendem harnstoffloesungen. | |
ATE91672T1 (de) | Verminderung der stickstoff- und kohlenstoffhaltigen schadstoffe mittels harnstoffloesungen. | |
DE69213728D1 (de) | FORTGESCHRITTENE WIEDERVERBRENNUNG ZUR ERNIEDRIGUNG VON NOx-EMISSIONEN IN VERBRENNUNGSSYSTEMEN | |
DE69329464D1 (de) | Methode zur herabsetzung des schadstoffausstosses aus einem mit einer partikelfalle versehenem dieselmotor | |
DE59101183D1 (de) | Verfahren zur Entstickung von Abgasen unter Gewinnung von HNO3. | |
DE69411931D1 (de) | Reduktion von säuren emissionen | |
ATE129220T1 (de) | Mehrstufenverfahren zur minderung der konzentration an schadstoffen in einem abgas unter verwendung von ammoniumsalzen. | |
ATE51953T1 (de) | Verfahren und vorrichtung zum reduzieren der schadstoffemission von feuerungsanlagen. | |
HU907010D0 (en) | Process for producing sulfur dioxide from flue gases | |
JPS531682A (en) | Decreasing method of no# in combustion exhaust gas from hydrocarbon | |
GLASS | Fuel nitrogen conversion during fuel rich combustion of pulverized coal and char[Ph. D. Thesis] | |
JPS52129667A (en) | Lowering concentration of nitrogen oxides contained in combustion exhaust gas | |
JPS529675A (en) | A process of decomposing and reducing nitrogen oxides in exhaust combu stion gases | |
JPS55121826A (en) | Method of disposing exhaust gas | |
JPS5771624A (en) | Reduction of nox present in waste gas | |
JPS53135880A (en) | Desulfurizing method for exhaust gas | |
Castaldini et al. | Environmental Assessment of NH 3 Injection for an Industrial Package Boiler. Volume 1. Technical Results | |
GB1459378A (en) | Metal cyanide complex compound disposal | |
JPS5490064A (en) | Method of removing nitrogen oxide contained in exhaust gas | |
JPS5362772A (en) | Decreasing method for nitrogen oxides in combustion gas | |
Fritz et al. | Application of an aqueous ammonia solution in catalytic DENOX plants | |
RICHTER et al. | Laboratory research for desulfurizing and NO-reduction by addition of ammonia under the conditions of the Bergbau-Forschung flue gas desulfurizing process[Final Report, Dec. 1980] | |
JPS53147670A (en) | Catalyst-free denitration method | |
JPS57187519A (en) | Multistage type sludge incinerator | |
JPS53108671A (en) | Reducing nox and uncombusted matters in combustion treatment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee | ||
RZN | Patent revoked |