Method for revamping a self-stripping urea plant
US9770699B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Mar 5, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Mar 5, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00024
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for revamping a self-stripping urea plant comprising the installation of a new CO2-stripping synthesis section (6), wherein at least part of the aqueous urea solution (10) leaving said new section (6) is directed to the existing low pressure recovery section (4) of the self-stripping plant, by-passing the existing self-stripping high-pressure section (2) and medium pressure treatment section (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.