ES2196805T3 - Proceso para el tratamiento de gases de combustion. - Google Patents
Proceso para el tratamiento de gases de combustion.Info
- Publication number
- ES2196805T3 ES2196805T3 ES99921144T ES99921144T ES2196805T3 ES 2196805 T3 ES2196805 T3 ES 2196805T3 ES 99921144 T ES99921144 T ES 99921144T ES 99921144 T ES99921144 T ES 99921144T ES 2196805 T3 ES2196805 T3 ES 2196805T3
- Authority
- ES
- Spain
- Prior art keywords
- urea
- dissolved
- ammonia
- flue gas
- combustion flue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/08—Preparation of ammonia from nitrogenous organic substances
- C01C1/086—Preparation of ammonia from nitrogenous organic substances from urea
-
- 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
- B01D2251/2067—Urea
Abstract
En un proceso para el tratamiento de gas de la combustión, en el que se inyecta amoniaco en una corriente de dichos gases de combustión, la mejora consiste en: disolver la urea en agua, formando una solución de urea disuelta; calentar y presurizar dicha solución de urea disuelta, formando una solución de urea disuelta, calentada y presurizada; hidrolizar la urea disuelta en dicha solución de urea disuelta, calentada y presurizada, formando una solución hidrolizada, que contiene amoniaco y dióxido de carbono; extraer dicho amoniaco y dióxido de carbono de la citada solución hidrolizada, poniendo en contacto dicha solución hidrolizada con vapor, lo cual deja tras de si una solución hidrolizada extraída; inyectar dicho amoniaco y dióxido de carbono en una corriente de dicho gas de combustión, y reciclar dicha solución hidrolizada extraída para disolver la citada urea tras haber llevado la presión y la temperatura a valores compatibles con la preparación de disolución de la urea.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT98MI001155A ITMI981155A1 (it) | 1998-05-25 | 1998-05-25 | Processo per la produzione di ammoniaca mediante idrolisi dell'urea |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2196805T3 true ES2196805T3 (es) | 2003-12-16 |
Family
ID=11380095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES99921144T Expired - Lifetime ES2196805T3 (es) | 1998-05-25 | 1999-05-14 | Proceso para el tratamiento de gases de combustion. |
Country Status (17)
Country | Link |
---|---|
US (1) | US5985224A (es) |
EP (1) | EP1089804B1 (es) |
JP (1) | JP2002516169A (es) |
KR (1) | KR100580930B1 (es) |
CN (1) | CN1168527C (es) |
AT (1) | ATE235300T1 (es) |
AU (1) | AU755072B2 (es) |
CA (1) | CA2331268C (es) |
CZ (1) | CZ294281B6 (es) |
DE (1) | DE69906291D1 (es) |
ES (1) | ES2196805T3 (es) |
HK (1) | HK1037986A1 (es) |
IT (1) | ITMI981155A1 (es) |
PL (1) | PL194720B1 (es) |
RU (1) | RU2193442C2 (es) |
TR (1) | TR200003469T2 (es) |
WO (1) | WO1999061136A1 (es) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5985222A (en) | 1996-11-01 | 1999-11-16 | Noxtech, Inc. | Apparatus and method for reducing NOx from exhaust gases produced by industrial processes |
US6077491A (en) | 1997-03-21 | 2000-06-20 | Ec&C Technologies | Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal |
US6093380A (en) * | 1998-10-16 | 2000-07-25 | Siirtec Nigi, S.P.A. | Method and apparatus for pollution control in exhaust gas streams from fossil fuel burning facilities |
US6511644B1 (en) | 2000-08-28 | 2003-01-28 | The Chemithon Corporation | Method for removing contaminants in reactors |
US6436359B1 (en) * | 2000-10-25 | 2002-08-20 | Ec&C Technologies, Inc. | Method for controlling the production of ammonia from urea for NOx scrubbing |
WO2002043837A1 (en) * | 2000-12-01 | 2002-06-06 | Fuel Tech, Inc. | Selective catalytic reduction of no, enabled by side stream urea decomposition |
US7615200B2 (en) * | 2000-12-01 | 2009-11-10 | Fuel Tech, Inc. | Selective catalytic reduction of NOx enabled by urea decomposition in heat-exchanger bypass |
US7829033B2 (en) * | 2003-07-03 | 2010-11-09 | Fuel Tech, Inc. | Selective catalytic reduction of NOx enabled by sidestream urea decomposition |
US6761868B2 (en) * | 2001-05-16 | 2004-07-13 | The Chemithon Corporation | Process for quantitatively converting urea to ammonia on demand |
JP3820163B2 (ja) | 2002-02-22 | 2006-09-13 | 三井化学株式会社 | 尿素濃度測定方法および装置 |
US7140187B2 (en) * | 2002-04-15 | 2006-11-28 | Amendola Steven C | Urea based composition and system for same |
US20030211024A1 (en) * | 2002-05-10 | 2003-11-13 | Wojichowski David Lee | Methods of converting urea to ammonia for SCR, SNCR and flue gas conditioning |
US6887449B2 (en) * | 2002-11-21 | 2005-05-03 | The Chemithon Corporation | Method of quantitatively producing ammonia from urea |
EP1533018A1 (en) * | 2003-11-05 | 2005-05-25 | Urea Casale S.A. | Method for the treatment of combustion flue gas |
CN101583412A (zh) * | 2006-08-22 | 2009-11-18 | 巴布科克能源公司 | 使用再生式热交换器在燃烧烟道气侧流中热分解尿素 |
US20080267837A1 (en) * | 2007-04-27 | 2008-10-30 | Phelps Calvin E | Conversion of urea to reactants for NOx reduction |
CA2697369A1 (en) * | 2007-08-24 | 2009-03-05 | Powerspan Corp | Method and apparatus for producing ammonium carbonate from urea |
CN100588613C (zh) * | 2007-08-24 | 2010-02-10 | 中电投远达环保工程有限公司 | 热解法尿素制氨工艺 |
US20090148370A1 (en) * | 2007-12-06 | 2009-06-11 | Spencer Iii Herbert W | Process to produce ammonia from urea |
SE532906C2 (sv) * | 2008-09-23 | 2010-05-04 | Scania Cv Abp | Hydrolyskatalysator med större kanaltvärsnitt i den perifera delen än i den centrala delen samt sätt för hydrolys av ett urinämne |
DE102009005677A1 (de) | 2009-01-22 | 2010-08-05 | Kruse Gmbh & Co. Kg | Verfahren und Vorrichtung zur Herstellung hochreiner Harnstofflösung |
US9428449B2 (en) | 2013-01-16 | 2016-08-30 | Alstom Technology Ltd | Method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
US9586831B2 (en) | 2014-06-09 | 2017-03-07 | Wahlco, Inc. | Urea to ammonia process |
CN104192862B (zh) * | 2014-09-23 | 2016-05-11 | 东方电气集团东方锅炉股份有限公司 | 一种利用锅炉气体的尿素水解制氨方法和装置 |
CN104474892A (zh) * | 2014-12-09 | 2015-04-01 | 邹英奎 | 一种脱硝粉的生产方法 |
CN105116719B (zh) * | 2015-07-17 | 2017-08-25 | 中国华能集团公司 | 基于热量前馈信号的尿素水解反应器控制系统和方法 |
CN105921014A (zh) * | 2016-05-10 | 2016-09-07 | 南宁市夏阳化工科技有限责任公司 | 一种车用尿素溶液的制备方法 |
CN113401921B (zh) * | 2021-05-17 | 2024-03-22 | 许昌龙岗发电有限责任公司 | 一种尿素水解制氨系统及其控制方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4087513A (en) * | 1977-08-12 | 1978-05-02 | Olin Corporation | Method of hydrolyzing urea contained in waste water streams |
NL8100989A (nl) * | 1981-02-28 | 1982-09-16 | Unie Van Kunstmestfab Bv | Werkwijze voor het verwijderen van ureum, ammoniak en kooldioxide uit verdunde waterige oplossingen. |
JPH02191528A (ja) * | 1989-01-20 | 1990-07-27 | Babcock Hitachi Kk | 固体還元剤を用いた脱硝装置 |
US5240688A (en) * | 1990-08-01 | 1993-08-31 | Fuel Tech Gmbh | Process for the in-line hydrolysis of urea |
JP3100191B2 (ja) * | 1991-09-02 | 2000-10-16 | 三菱重工業株式会社 | 排煙脱硝装置 |
US5279108A (en) * | 1992-02-28 | 1994-01-18 | Union Oil Company Of California | System for reduction of NOx in jet engine exhaust |
WO1994013391A1 (en) * | 1992-12-08 | 1994-06-23 | Nalco Fuel Tech | Process for improving the performance of an electrostatic precipitator |
JP3638638B2 (ja) * | 1994-08-24 | 2005-04-13 | バブコック日立株式会社 | 固体還元剤を用いた脱硝装置 |
US6077491A (en) * | 1997-03-21 | 2000-06-20 | Ec&C Technologies | Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal |
-
1998
- 1998-05-25 IT IT98MI001155A patent/ITMI981155A1/it unknown
- 1998-09-24 US US09/160,429 patent/US5985224A/en not_active Expired - Lifetime
-
1999
- 1999-05-14 ES ES99921144T patent/ES2196805T3/es not_active Expired - Lifetime
- 1999-05-14 CZ CZ20004394A patent/CZ294281B6/cs not_active IP Right Cessation
- 1999-05-14 RU RU2000132737/12A patent/RU2193442C2/ru not_active IP Right Cessation
- 1999-05-14 KR KR1020007013107A patent/KR100580930B1/ko not_active IP Right Cessation
- 1999-05-14 CA CA002331268A patent/CA2331268C/en not_active Expired - Fee Related
- 1999-05-14 WO PCT/IT1999/000135 patent/WO1999061136A1/en active IP Right Grant
- 1999-05-14 AU AU38481/99A patent/AU755072B2/en not_active Ceased
- 1999-05-14 CN CNB998065722A patent/CN1168527C/zh not_active Expired - Fee Related
- 1999-05-14 DE DE69906291T patent/DE69906291D1/de not_active Expired - Lifetime
- 1999-05-14 JP JP2000550584A patent/JP2002516169A/ja active Pending
- 1999-05-14 EP EP99921144A patent/EP1089804B1/en not_active Expired - Lifetime
- 1999-05-14 TR TR2000/03469T patent/TR200003469T2/xx unknown
- 1999-05-14 PL PL99344405A patent/PL194720B1/pl not_active IP Right Cessation
- 1999-05-14 AT AT99921144T patent/ATE235300T1/de not_active IP Right Cessation
-
2001
- 2001-12-06 HK HK01108571A patent/HK1037986A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TR200003469T2 (tr) | 2001-04-20 |
HK1037986A1 (en) | 2002-03-01 |
CZ20004394A3 (en) | 2001-05-16 |
CA2331268C (en) | 2005-01-11 |
KR20010043750A (ko) | 2001-05-25 |
PL344405A1 (en) | 2001-11-05 |
ATE235300T1 (de) | 2003-04-15 |
CN1168527C (zh) | 2004-09-29 |
CN1303315A (zh) | 2001-07-11 |
DE69906291D1 (de) | 2003-04-30 |
CA2331268A1 (en) | 1999-12-02 |
CZ294281B6 (cs) | 2004-11-10 |
PL194720B1 (pl) | 2007-06-29 |
WO1999061136A1 (en) | 1999-12-02 |
AU755072B2 (en) | 2002-12-05 |
US5985224A (en) | 1999-11-16 |
JP2002516169A (ja) | 2002-06-04 |
AU3848199A (en) | 1999-12-13 |
KR100580930B1 (ko) | 2006-05-17 |
RU2193442C2 (ru) | 2002-11-27 |
ITMI981155A1 (it) | 1999-11-25 |
EP1089804A1 (en) | 2001-04-11 |
EP1089804B1 (en) | 2003-03-26 |
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