ATE300501T1 - Verfahren zur entfernung von verunreinigungen in harnstoffhydrolysereaktoren - Google Patents
Verfahren zur entfernung von verunreinigungen in harnstoffhydrolysereaktorenInfo
- Publication number
- ATE300501T1 ATE300501T1 AT01964632T AT01964632T ATE300501T1 AT E300501 T1 ATE300501 T1 AT E300501T1 AT 01964632 T AT01964632 T AT 01964632T AT 01964632 T AT01964632 T AT 01964632T AT E300501 T1 ATE300501 T1 AT E300501T1
- Authority
- AT
- Austria
- Prior art keywords
- reactors
- impurities
- removal
- urea hydrolyzer
- hydrolyzer
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 1
- 239000004202 carbamide Substances 0.000 title 1
- 239000012535 impurity Substances 0.000 title 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2433—Discharge mechanisms for floating particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
-
- 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
- B01J7/00—Apparatus for generating gases
- B01J7/02—Apparatus for generating gases by wet methods
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/20—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium
-
- 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
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/262—Separation of sediment aided by centrifugal force or centripetal force by using a centrifuge
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00026—Controlling or regulating the heat exchange system
- B01J2208/00035—Controlling or regulating the heat exchange system involving measured parameters
- B01J2208/00044—Temperature measurement
- B01J2208/00061—Temperature measurement of the reactants
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00026—Controlling or regulating the heat exchange system
- B01J2208/00035—Controlling or regulating the heat exchange system involving measured parameters
- B01J2208/00079—Fluid level measurement
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00182—Controlling or regulating processes controlling the level of reactants in the reactor vessel
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Extraction Or Liquid Replacement (AREA)
- Detergent Compositions (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Cephalosporin Compounds (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22853900P | 2000-08-28 | 2000-08-28 | |
| US09/708,897 US6511644B1 (en) | 2000-08-28 | 2000-11-08 | Method for removing contaminants in reactors |
| PCT/US2001/041817 WO2002018273A2 (en) | 2000-08-28 | 2001-08-22 | Method for removing contaminants in urea hydrolysis reactors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE300501T1 true ATE300501T1 (de) | 2005-08-15 |
Family
ID=26922453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT01964632T ATE300501T1 (de) | 2000-08-28 | 2001-08-22 | Verfahren zur entfernung von verunreinigungen in harnstoffhydrolysereaktoren |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6511644B1 (de) |
| EP (1) | EP1322553B1 (de) |
| JP (1) | JP5415659B2 (de) |
| AT (1) | ATE300501T1 (de) |
| AU (1) | AU2001285469A1 (de) |
| DE (1) | DE60112315T2 (de) |
| WO (1) | WO2002018273A2 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6761868B2 (en) * | 2001-05-16 | 2004-07-13 | The Chemithon Corporation | Process for quantitatively converting urea to ammonia on demand |
| 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 |
| US20080267837A1 (en) * | 2007-04-27 | 2008-10-30 | Phelps Calvin E | Conversion of urea to reactants for NOx reduction |
| US20090148370A1 (en) | 2007-12-06 | 2009-06-11 | Spencer Iii Herbert W | Process to produce ammonia from urea |
| US9677817B1 (en) * | 2012-02-29 | 2017-06-13 | The United States Of America As Represented By The Secretary Of The Air Force | Method for thermal management through use of ammonium carbamate |
| US8961818B2 (en) | 2013-06-17 | 2015-02-24 | Deere & Company | Diesel exhaust fluid formulation that reduces urea deposits in exhaust systems |
| US8999277B2 (en) | 2013-06-17 | 2015-04-07 | Deere & Company | Diesel exhaust fluid formulation that reduces urea deposits in exhaust systems |
| US9586831B2 (en) | 2014-06-09 | 2017-03-07 | Wahlco, Inc. | Urea to ammonia process |
| CN104474892A (zh) * | 2014-12-09 | 2015-04-01 | 邹英奎 | 一种脱硝粉的生产方法 |
| KR102234371B1 (ko) * | 2019-11-11 | 2021-03-31 | 한국지역난방공사 | 요소수 기화챔버내 스케일 누적 방지 장치 |
Family Cites Families (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758572A (en) | 1971-04-26 | 1973-09-11 | Dow Chemical Co | Process for recovering urea from pyrolysis systems |
| US3826815A (en) | 1972-06-21 | 1974-07-30 | I Mavrovic | Recovery of residual ammonia from weak aqueous solutions thereof |
| US3922222A (en) | 1973-02-20 | 1975-11-25 | Cf Ind | Method for treatment of urea crystallizer condensate |
| IT1014987B (it) * | 1974-06-12 | 1977-04-30 | Snam Progetti | Procedimento integrato urea am moniaca |
| IT1034674B (it) * | 1975-03-28 | 1979-10-10 | Snam Progetti | Processo flessibile intergrato per la produzione di ammoniaca edurea |
| IT1068268B (it) | 1976-09-09 | 1985-03-21 | Snam Progetti | Procedimento per la produzione di urea e purificazione delle acque |
| US4341640A (en) | 1976-09-27 | 1982-07-27 | Standard Oil Company | Urea hydrolysis |
| JPS5352274A (en) | 1976-10-25 | 1978-05-12 | Mitsui Toatsu Chem Inc | Treating method for aqueous solution containing urea, ammonia and carbondioxide |
| NL168196C (nl) * | 1976-11-03 | 1982-03-16 | Stamicarbon | Werkwijze voor het afscheiden van nh&013 en co&012 uit een mengsel van nh&013, co&012 en h&012o. |
| AT351135B (de) | 1977-06-08 | 1979-07-10 | Oemv Ag | Verfahren und vorrichtung zur reinigung von harnstoffloesungen |
| JPS5951481B2 (ja) | 1977-06-08 | 1984-12-14 | クロリン エンジニアズ株式会社 | 二酸化塩素の製造方法 |
| US4087513A (en) | 1977-08-12 | 1978-05-02 | Olin Corporation | Method of hydrolyzing urea contained in waste water streams |
| US4220635A (en) | 1978-03-20 | 1980-09-02 | Olin Corporation | Catalytic method for hydrolyzing urea |
| US4168299A (en) | 1978-03-20 | 1979-09-18 | Olin Corporation | Catalytic method for hydrolyzing urea |
| NL7903623A (nl) | 1979-05-09 | 1980-11-11 | Stamicarbon | Werkwijze voor het zuiveren van ureumhoudend afvalwater en werkwijze voor het bereiden van melamine. |
| 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. |
| NL8102391A (nl) | 1981-05-15 | 1982-12-01 | Unie Van Kunstmestfab Bv | Werkwijze voor het winnen van waardevolle bestanddelen uit de afvalstromen verkregen bij de ureumbereiding. |
| FR2512813A1 (fr) | 1981-09-16 | 1983-03-18 | Rhone Poulenc Chim Base | Procede de carbonylation des dienes conjugues en presence d'un catalyseur au palladium avec recyclage dudit catalyseur |
| JPS5982987A (ja) | 1982-11-05 | 1984-05-14 | Toyo Eng Corp | 尿素を含有する希水溶液の処理方法 |
| US4654442A (en) | 1983-12-30 | 1987-03-31 | Union Oil Company Of California | Methods for removing biuret from urea |
| DE3422175A1 (de) | 1984-06-04 | 1985-12-19 | Julius Dr. 8000 München Kern | Verfahren zur beimischung von ammoniak zu saure schadstoffe enthaltenden abgasen oder luft |
| US4552979A (en) | 1984-08-27 | 1985-11-12 | James Chemical Engineering Inc. | Process for treatment of urea plant process condensate |
| JPS63198713A (ja) | 1987-02-13 | 1988-08-17 | Hino Motors Ltd | デイ−ゼルエンジンの窒素酸化物除去方法 |
| JPH0691987B2 (ja) | 1987-03-13 | 1994-11-16 | 東洋エンジニアリング株式会社 | 尿素の加水分解方法 |
| JPH02191528A (ja) | 1989-01-20 | 1990-07-27 | Babcock Hitachi Kk | 固体還元剤を用いた脱硝装置 |
| JPH02268811A (ja) | 1989-04-10 | 1990-11-02 | Hitachi Zosen Corp | 尿素の加水分解によるアンモニアを用いる脱硝方法 |
| IT1232670B (it) | 1989-09-15 | 1992-03-02 | Snam Progetti | Procedimento per la purificazione delle acque reflue prodotte dagli impianti di produzione dell'urea. |
| US5543123A (en) | 1990-08-01 | 1996-08-06 | Nalco Fuel Tech | Low pressure formation of a urea hydrolysate for nitrogen oxides reduction |
| US5240688A (en) | 1990-08-01 | 1993-08-31 | Fuel Tech Gmbh | Process for the in-line hydrolysis of urea |
| DE4038054A1 (de) | 1990-11-29 | 1992-06-04 | Man Technologie Gmbh | Verfahren und vorrichtung zur selektiven katalytischen no(pfeil abwaerts)x(pfeil abwaerts)-reduktion in sauerstoffhaltigen abgasen |
| US5281403B1 (en) | 1991-09-27 | 1996-06-11 | Noell Inc | Method for converting urea to ammonia |
| EP0538848A1 (de) | 1991-10-23 | 1993-04-28 | Urea Casale S.A. | Verfahren und Einrichtung für die Hydrolyse von Restharnstoff im Wasser aus Harnstoff-Syntheseanlagen |
| US5252308A (en) | 1991-12-31 | 1993-10-12 | Union Oil Company Of California | Transporting urea for quantitative conversion into ammonia |
| US5223238A (en) | 1992-01-16 | 1993-06-29 | The M. W. Kellogg Company | Method for treating ammonia and urea condensates |
| EP0582022A1 (de) | 1992-08-03 | 1994-02-09 | Paul Scherrer Institut | Verfahren zum Herstellen von gasförmigem Ammoniak aus Harnstoff |
| EP0722421A4 (de) | 1993-10-06 | 1997-05-28 | Nalco Fuel Tech | Niederdruckherstellung eines harnstoffhydrolysats für die reduktion von stickstoffoxiden |
| 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 |
| JPH0871372A (ja) | 1994-09-07 | 1996-03-19 | Babcock Hitachi Kk | 尿素を用いた脱硝装置と方法 |
| US5720926A (en) | 1995-11-01 | 1998-02-24 | Environair S.I.P.A. Inc. | Apparatus for removing a contaminant from a gas |
| JP3368371B2 (ja) | 1996-05-07 | 2003-01-20 | 日立造船株式会社 | 排煙脱硝装置 |
| 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 |
| JPH11171535A (ja) | 1997-12-05 | 1999-06-29 | Mitsubishi Heavy Ind Ltd | アンモニア発生方法及び排ガス処理方法 |
| ITMI981155A1 (it) | 1998-05-25 | 1999-11-25 | Siirtec Nigi S P A | Processo per la produzione di ammoniaca mediante idrolisi dell'urea |
| DE19834980A1 (de) | 1998-08-03 | 1999-12-30 | Siemens Ag | Mikrowellen-Hydrolyse-Reaktor |
| 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 |
| JP4975205B2 (ja) * | 2000-04-28 | 2012-07-11 | 日揮株式会社 | ガス状混合物からのアンモニア回収方法 |
-
2000
- 2000-11-08 US US09/708,897 patent/US6511644B1/en not_active Expired - Lifetime
-
2001
- 2001-08-22 AT AT01964632T patent/ATE300501T1/de not_active IP Right Cessation
- 2001-08-22 WO PCT/US2001/041817 patent/WO2002018273A2/en not_active Ceased
- 2001-08-22 DE DE60112315T patent/DE60112315T2/de not_active Expired - Lifetime
- 2001-08-22 EP EP01964632A patent/EP1322553B1/de not_active Expired - Lifetime
- 2001-08-22 AU AU2001285469A patent/AU2001285469A1/en not_active Abandoned
- 2001-08-22 JP JP2002523399A patent/JP5415659B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002018273A2 (en) | 2002-03-07 |
| EP1322553B1 (de) | 2005-07-27 |
| DE60112315D1 (de) | 2005-09-01 |
| WO2002018273A3 (en) | 2002-06-06 |
| JP5415659B2 (ja) | 2014-02-12 |
| DE60112315T2 (de) | 2006-05-24 |
| JP2004507428A (ja) | 2004-03-11 |
| AU2001285469A1 (en) | 2002-03-13 |
| WO2002018273B1 (en) | 2002-09-12 |
| EP1322553A2 (de) | 2003-07-02 |
| US6511644B1 (en) | 2003-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69606186D1 (de) | Verfahren zur entfernung von schwefelwasserstoff aus flüssigem schwefel mittels hochdruckentgasung | |
| DE60137166D1 (de) | Verfahren, Vorrichtung, und System zur Regenerierung von optischen Signalen | |
| DE60026750D1 (de) | Verfahren, Vorrichtung und System zur Übertragung von optischen Überwachungssignalen | |
| DE60112315D1 (de) | Verfahren zur entfernung von verunreinigungen in harnstoffhydrolysereaktoren | |
| DE69002941D1 (de) | Verfahren zur entfernung von quecksilber und gegebenenfalls arsen aus kohlenwasserstoffen. | |
| DE602005001156D1 (de) | Verfahren und vorrichtung zur reinigung von nukleinsäuren | |
| ATE380781T1 (de) | Verfahren und vorrichtung zur wasserbehandlung | |
| ATE449104T1 (de) | Verfahren zur reinigung von fibrinogen | |
| DE59710617D1 (de) | Verfahren zum biologischen reinigen von abwasser | |
| ATE348790T1 (de) | Verfahren zur handhabung und entsorgung vonkatalysatorfeinstoffen | |
| ATE409178T1 (de) | Verfahren zur produktion von iohexol hoher reinheit | |
| DE69612304D1 (de) | Verfahren zur Trennung der Metalle der Platingruppe | |
| DE60125119D1 (de) | Vorrichtung und Verfahren zur Erzeugung und Dekodierung von (n,3) Kodes und (n,4) Kodes unter Verwendung von Simplex Kodes | |
| ATE243168T1 (de) | Verfahren und vorrichtung zur behandlung von abwasser in einem bioreaktor, einer ultrafiltrationseinheit und einer membranfiltrationeinheit | |
| ATE344376T1 (de) | Vorrichtung und verfahren zur behandlung von kontaminierten materialien | |
| ATE491674T1 (de) | Verfahren und vorrichtung zum reinigen von abwässern | |
| ATE289289T1 (de) | Verfahren zur reinigung von alkanolaminen | |
| ATE362896T1 (de) | Verfahren zur reinigung von wasser | |
| ATE494064T1 (de) | Verfahren zur regenerierung eines hydrierkatalysators | |
| ATE239383T1 (de) | Verfahren und vorrichtung zur gewinnung von pflanzen-inhaltsstoffen | |
| DE69933931D1 (de) | Vorrichtung und verfahren zur reinigung von giftgas | |
| DE69906784D1 (de) | Verfahren zur behandlung von laktamen und verfahren zur laktamreinigung | |
| DE60111558D1 (de) | Verfahren und vorrichtung zur abtrennung und zerstörung von gelöstem nitrat | |
| ATE442369T1 (de) | Verfahren zur aufreinigung von riboflavin | |
| DE59712093D1 (de) | Verfahren zur reinigung von thrombinähnlichen proteasen aus schlangengiften |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |