Production and recovery of hydrogen and carbon monoxide
US4836833A · kind A · utility
53Cited by
19References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1988 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Feb 17, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/156
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Separation and individual recovery of high purity hydrogen and carbon monoxide from a mixed gas stream containing these compounds in association with carbon dioxide and one or more minor components such as particularly methane, is achieved by pressure swing adsorption to remove contained carbon dioxide from the charged gas, and further treatment of the CO.sub.2 -freed gas product by a sequence of steps utilizing (a) pressure swing adsorption and (b) selective permeation through a series of semi-permeable membranes, which steps (a) and (b) are carried out in either order of sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.