Membrane dehydration of vaporous feeds by countercurrent condensable sweep
US5681433A · kind A · utility
39Cited by
10References
1Claims
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Assignee
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Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/17
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the dehydration of a vaporous mixture. The basic process involves directing a predominantly condensable water vapor-containing vaporous mixture against the feed side of a membrane while maintaining the feed near saturation without condensing it, directing a condensable vapor sweep stream past the permeate side of the membrane in a countercurrent flow, thereby transporting water vapor in the vaporous mixture from the feed side to the permeate side of the membrane to form a noncondensed combined permeate side mixture of condensable vapor and transported water vapor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.