Multi-leaf membrane module

Details Multi-leaf membrane module Multi-leaf membrane module

1987-06-22

1988-08-02

Spear, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Noncoiled nonannular cross section tube

210450, B01D 1300

Patent

active

047612290

ABSTRACT:
Described is a membrane apparatus having particular application in hydrocarbon processes, such as separating ketone dewaxing solvent from a hydrocarbon process stream. The apparatus contains a pressure resistant compartment containing flattened tubular membranes in a parallel stack arrangement separated by retentate spacers. Internally each tube contains permeate spacers for solvent outflow which permeate spacers extend the full length of the tubular membrane. The end of the tubes are not separated by retentate spacers and are clamped together such that solvent exits via the permeate spacers, while the clamping assembly design prevents the cocurrent exit of solution from the high pressure compartment at the solvent inlet location.

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