Method of separation of a gas from a gas mixture
US4239507A · kind A · utility
Inventors
Key dates
| Filing date | Sep 27, 1978 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Sep 27, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D57/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas which is the most readily condensable of the gases of a mixture is separated by passing the mixture in contact with at least one microporous barrier having a permeability of 100.times.10.sup.-7 to 1000.times.10.sup.-7 moles of air/cm.sup.2 /min./cmHg, a pore thickness of 10 to 100 A, by adjusting the partial pressure of the most readily condensable gas and/or the temperature of the gas mixture as a function of the mean pore radius of the barrier in order to ensure capillary condensation of the condensable gas at the pore inlets of the barrier and to induce a flow of condensed gas along the pores and across the barrier, the gas which has thus condensed being then collected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.