Purification of fuel gases
US4374105A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1979 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Dec 11, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/86
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for substantial removal of nitrogen and sulfur compounds from gas streams, particularly fuel gas mixtures produced from sulfur and nitrogen containing coal or other carbonaceous fuels, by contacting the gas stream with solid zinc oxide at elevated temperatures in a reaction zone. The process provides a continuous method of removal of ammonia and hydrogen sulfide by contacting the gas stream with zinc oxide solids and regenerating the sulfided zinc in a fluidized bed regeneration zone by contact with oxygen containing gas at elevated temperatures. The process provides simultaneous removal of sulfur and nitrogen components of a fuel gas stream without requiring a decrease in the temperature of the fuel gas stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.