Method and apparatus for hydrogen sulphide removal
US7144555B1 · kind B1 · utility
36Cited by
24References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2001 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Mar 16, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2251/2062
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for removing hydrogen sulphide and carbon dioxide from a gas stream includes the step of contacting the gas stream with aqueous and gaseous ammonia in a closed vessel in the presence of solid iron. An apparatus for removing hydrogen sulphide and carbon dioxide from a gas stream includes a closed vessel for containing aqueous and gaseous ammonia and an iron source. The vessel is partitioned into inlet and outlet chambers and may itself serve as the iron source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.