Apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide
US6210454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | May 3, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide, comprising a liquid-gas reactor-contactor (2), means (3) for supplying gas to be treated and means (1) for supplying an organic solvent containing a catalyst, means (25) for recovering sulphur an doutlet means (20) for a gaseous effluent containing sulphur in vapour form, the apparatus being characterized in that it comprises at least one means (7) for contacting and cooling the gaseous effluent, delivering a three-phase effluent, having an inlet connected to the effluent outlet means (20) and to means (6, 13) for recycling a cooling solvent, means (30) for separating said three-phase effluent connected to the cooling means, adapted to separate purified gas from sulphur and comprising means (17) for evacuating purified gas, means (15) for extracting sulphur and means (14) for recovering solvent connected to the means (6, 13) for recycling the cooling solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.