Process for removing and recovering acidic gases from gaseous mixtures containing them
US4069117A · kind A · utility
26Cited by
4References
5Claims
0Family size
Inventor
Key dates
| Filing date | Jan 28, 1976 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | Jan 28, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the removal and recovery of acidic gas(es) from a gaseous mixture comprising electrolysis of a chloride salt to produce an aqueous metal hydroxide solution, hydrogen and chlorine. The metal hydroxide solution is used to absorb acidic gas from the gaseous mixture and to form an aqueous metal salt. The hydrogen and chlorine are reacted to produce hydrochloric acid, which is used to decompose the aqueous metal salt to produce an aqueous chloride salt and acidic gas. Following separation, the aqueous chloride salt may be electrolyzed again.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.