Method for the modernization of a urea production plant
US8158823B2 · kind B2 · utility
1Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Oct 29, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00024
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for revamping a conventional self-stripping urea plant is disclosed, where a minor portion (18a) of the carbon dioxide feed is fed to the stripper (7) and used as a stripping agent. In further embodiments, another carbamate condenser is installed, or the conventional horizontal shell-and-tube carbamate condenser (6) is replaced with a vertical submerged unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.