Hydrogen production from gasification of sour gas
US12415723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2023 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Jan 18, 2044 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10K1/101
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sour gas stream is sub-stoichiometrically combusted to produce soot and a sour syngas stream. At least 10% of the carbon in the sour gas stream is converted into the soot. At least a portion of the hydrogen sulfide of the sour syngas stream is reacted with sulfur dioxide to produce a syngas stream comprising the carbon dioxide, the carbon monoxide, the hydrogen, water, elemental sulfur vapor, a residual portion of the hydrogen sulfide, and a residual portion of the sulfur dioxide. The syngas stream is reacted with steam to produce a shifted sour gas stream including more carbon dioxide, more hydrogen, more hydrogen sulfide, and less carbon monoxide in comparison to the syngas stream. Water and hydrogen sulfide is separated from the shifted sour gas stream to produce a sweet gas stream. The sweet gas stream is separated into a hydrogen product stream and an exhaust stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.