Apparatus and catalytic partial oxidation process for recovering sulfur from an H2S-containing gas stream
US7357908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2005 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Sep 10, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2203/1282
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The disclosed sulfur recovery system and process avoid some of the operational problems of conventional Claus plants and processes by replacing the reaction burner and furnace tube of a conventional Claus plant with a more efficient short contact time catalytic reactor assembly containing a SPOC™ catalyst that operates efficiently at elevated temperatures. Such Claus plant modification also reduces or avoids the negative effects of hydrocarbons, CO2 and ammonia in Claus sulfur plant feeds, and permits efficient processing of dilute to concentrated H2S feeds. The disclosed modification makes possible the expansion of Claus plant capacity at lower cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.