Hydrogen production from in situ partial burning of H.sub.2 S
US4481181A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1983 |
| Grant date | Nov 6, 1984 |
| Priority date | — |
| Expiry date | Sep 29, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Hydrogen is produced from hydrogen sulfide by coupling, in a single reaction zone, the partial oxidation of hydrogen sulfide to water and sulfur with the thermal decomposition of hydrogen sulfide to hydrogen and sulfur. When one mole of hydrogen sulfide is burned with a stoichiometric deficiency of oxygen, enough thermal energy is generated by the exothermic partial oxidation to effect the thermal dissociation of about two moles of hydrogen sulfide. The gas mixture exiting from the reaction zone is substantially instantaneously cooled by quenching with cooler gas of substantially the same composition to prevent significant recombination of hydrogen and sulfur. The thermal energy in the gas following the quench step is used to preheat the H.sub.2 S and to cause some dissociation before entry into the reaction zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.