Countercurrent dehydration by hollow fibers
US5108464A · kind A · utility
45Cited by
24References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1991 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Mar 20, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2313/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas dehydration method and apparatus are disclosed which utilize lumen-side feed, hydrophilic polymer-inside-coated, thin-film composite hollow fiber membranes, the support fiber of which is highly permeable, such composite membranes being used in a module wherein the permeate flows countercurrent to the flow of the feed, and in which dried raffinate gas is mixed with water-containing permeate at a point opposite the feed end of the module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.