Method for removing carbon oxides from a hydrogen stream
US5942200A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1998 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Feb 12, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2203/047
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for removing carbon oxides from a hydrogen stream containing more than 0.1 ppmv of carbon monoxide, carbon dioxide or a mixture thereof, by charging the hydrogen with a hydrocarbonaceous stream containing a minor amount of aromatics to an aromatics saturation zone; saturating at least a portion of the aromatics and methanating at least a major portion of the carbon oxide to produce a reduced aromatics content hydrocarbonaceous stream and a reduced carbon oxide content hydrogen stream; and recovering the reduced aromatics content hydrocarbonaceous stream and the reduced carbon oxide content hydrogen stream. The hydrogen may optionally be dried or further purified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.