RU92004374A - Способ гидролиза мочевины, содержащейся в отработанной воде из установок синтеза, и установка для его осуществления - Google Patents
Способ гидролиза мочевины, содержащейся в отработанной воде из установок синтеза, и установка для его осуществленияInfo
- Publication number
- RU92004374A RU92004374A RU92004374/04A RU92004374A RU92004374A RU 92004374 A RU92004374 A RU 92004374A RU 92004374/04 A RU92004374/04 A RU 92004374/04A RU 92004374 A RU92004374 A RU 92004374A RU 92004374 A RU92004374 A RU 92004374A
- Authority
- RU
- Russia
- Prior art keywords
- urea
- hydrolysis
- installation
- contained
- implementation
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims 10
- 239000004202 carbamide Substances 0.000 title claims 5
- 230000015572 biosynthetic process Effects 0.000 title claims 2
- 238000006460 hydrolysis reaction Methods 0.000 title claims 2
- 238000009434 installation Methods 0.000 title claims 2
- 238000003786 synthesis reaction Methods 0.000 title claims 2
- 230000002194 synthesizing Effects 0.000 title claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims 2
- 239000002131 composite material Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002351 wastewater Substances 0.000 claims 1
Claims (1)
- Способ гидролиза мочевины, содержащейся в отработанной воде из установок для синтеза мочевины, состоит из термической обработки воды, содержащей мочевину, и удаления при помощи отпаривания соединений из разложения мочевины (CO2 и NH3) в несколько стадий, последовательно соединенных перекрывающимся потоком. Установка для осуществления способа является вертикальной колонной с составными модулями со сливами, которые проходят через два последовательных модуля и дают раствору возможность двигаться вверх.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3087/91 | 1991-10-23 | ||
| CH308791 | 1991-10-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU92004374A true RU92004374A (ru) | 1996-03-10 |
| RU2056408C1 RU2056408C1 (ru) | 1996-03-20 |
Family
ID=4248336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU9292004374A RU2056408C1 (ru) | 1991-10-23 | 1992-10-22 | Способ гидролиза мочевины, содержащейся в отработанной воде с установок синтеза мочевины, и колонный аппарат для его осуществления |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5399755A (ru) |
| EP (1) | EP0538848A1 (ru) |
| CN (1) | CN1073152A (ru) |
| CA (1) | CA2081294A1 (ru) |
| MX (1) | MX9206142A (ru) |
| RU (1) | RU2056408C1 (ru) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2168993C (en) * | 1995-10-27 | 2007-01-02 | Giorgio Pagani | Hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution |
| AU2598797A (en) * | 1996-04-01 | 1997-10-22 | United States Filter Corporation | Two-stage separation process |
| 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 |
| 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 |
| ITMI20072206A1 (it) * | 2007-11-21 | 2009-05-22 | Snam Progetti | Metodo per il recupero di ammoniaca da una corrente gassosa in un processo di sintesi di urea |
| JP6634342B2 (ja) * | 2016-05-24 | 2020-01-22 | 東洋エンジニアリング株式会社 | 尿素水溶液の処理方法および装置 |
| EP3665152A1 (en) * | 2017-08-11 | 2020-06-17 | Nouryon Chemicals International B.V. | Process for converting cyclic alkylene ureas into their corresponding alkylene amines |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4341640A (en) * | 1976-09-27 | 1982-07-27 | Standard Oil Company | Urea hydrolysis |
| NL8006477A (nl) * | 1980-11-28 | 1982-06-16 | Unie Van Kunstmestfab Bv | Werkwijze voor het verwijderen van ureum, ammoniak en kooldioxide uit verdunde waterige oplossing. |
| 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. |
| US4552979A (en) * | 1984-08-27 | 1985-11-12 | James Chemical Engineering Inc. | Process for treatment of urea plant process condensate |
| US5223238A (en) * | 1992-01-16 | 1993-06-29 | The M. W. Kellogg Company | Method for treating ammonia and urea condensates |
-
1992
- 1992-10-22 RU RU9292004374A patent/RU2056408C1/ru active
- 1992-10-22 EP EP92118068A patent/EP0538848A1/en not_active Withdrawn
- 1992-10-23 CN CN92113060.0A patent/CN1073152A/zh active Pending
- 1992-10-23 US US07/965,741 patent/US5399755A/en not_active Expired - Fee Related
- 1992-10-23 MX MX9206142A patent/MX9206142A/es unknown
- 1992-10-23 CA CA002081294A patent/CA2081294A1/en not_active Abandoned
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