Multiple stage countercurrent hollow fiber membrane module
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United States of America Patent
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-
Jan 5, 1993
Grant Date -
N/A
app pub date -
Jul 26, 1991
filing date -
Jul 26, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hollow fiber separation module is provided having a single, elongated pressurizable shell and containing multiple separation stages by multiple sections of hollow fiber bundles contained within the shell, with the ends of each bundle section potted within a single tubesheet at each end of the elongated shell. The fibers within each section are aligned so that the permeate within the fiber bores passes along paths traveling generally from one tubesheet to the other and one or more impermeable barriers are provided within the shell to isolate each section and control the passage of feed gas along the shell side of each fiber bundle section in a flow path countercurrent to the passage of permeate in the bores of the fibers.
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