Method for partially oxidizing a gas stream comprising hydrogen sulphide and ammonia
US6902713B1 · kind B1 · utility
6Cited by
15References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2001 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/346
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for partially oxidizing, in a Claus furnace, at least one gas containing hydrogen sulfide and ammonia with at least one gas rich in oxygen. The residual ammonia content at the outlet of the furnace is measured with a laser diode. Based upon this measurement, the flow rates of the ammonia containing gases and the oxygen rich gases may be modified to obtain the desired residual ammonia content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.