Segregation of streams for the production of ammonia
US7947168B2 · kind B2 · utility
10Cited by
15References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 5, 2008 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Feb 1, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/002
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for recovering NH3 present in a sour water stream containing odiferous compounds such as pyridines, indoles, ketones and mercaptans produced during an upgrading process for upgrading bitumen from oil sands into synthetic crude comprising treating the sour water stream in a sour water treatment unit to produce a NH3-rich stream and a H2S-rich stream; and hydrotreating the NH3-rich stream in a hydrotreater in the presence of hydrogen to remove the odiferous compounds such as pyridines, indoles, ketones and mercaptans and produce a treated NH3-rich stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.