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Title: SEPARATION OF GASES BY DIFFUSIION

Abstract

A method and apparatus are given for the separation of mixtures of gaseous or vaporous media by diffusion through a permeable membrane. The apparatus consists principally of a housing member having an elongated internal chamber dissected longitudinally by a permeable membrane. Means are provided for producing a pressure difference between opposite sides of the membrane to cause a flow of the media in the chamber therethrough. This pressure difference is alternated between opposite sides of the membrane to produce an oscillating flow through the membrane. Additional means is provided for producing flow parallel to the membrane in opposite directions on the two sides thereof and of the same frequency and in phase with the alternating pressure difference. The lighter molecules diffuse through the membrane more readily than the heavier molecules and the parallel flow effects a net transport of the lighter molecules in one direction and the heavier molecules in the opposite direction within the chamber. By these means a concentration gradient along the chamber is established.

Inventors:
; ;
Issue Date:
OSTI Identifier:
4108361
Patent Number(s):
2964124
Assignee:
U.S. Atomic Energy Commission
NSA Number:
NSA-15-007935
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-61
Country of Publication:
United States
Language:
English
Subject:
PHYSICS; DIFFUSION; FREQUENCY; GAS FLOW; GASES; INSTRUMENTS; MEMBRANES; MIXING; MOLECULES; OSCILLATIONS; PRESSURE; SEPARATION PROCESSES; VAPORS; WEIGHT

Citation Formats

Peierls, R E, Simon, F E, and Arms, H S. SEPARATION OF GASES BY DIFFUSIION. United States: N. p., 1960. Web.
Peierls, R E, Simon, F E, & Arms, H S. SEPARATION OF GASES BY DIFFUSIION. United States.
Peierls, R E, Simon, F E, and Arms, H S. Tue . "SEPARATION OF GASES BY DIFFUSIION". United States.
@article{osti_4108361,
title = {SEPARATION OF GASES BY DIFFUSIION},
author = {Peierls, R E and Simon, F E and Arms, H S},
abstractNote = {A method and apparatus are given for the separation of mixtures of gaseous or vaporous media by diffusion through a permeable membrane. The apparatus consists principally of a housing member having an elongated internal chamber dissected longitudinally by a permeable membrane. Means are provided for producing a pressure difference between opposite sides of the membrane to cause a flow of the media in the chamber therethrough. This pressure difference is alternated between opposite sides of the membrane to produce an oscillating flow through the membrane. Additional means is provided for producing flow parallel to the membrane in opposite directions on the two sides thereof and of the same frequency and in phase with the alternating pressure difference. The lighter molecules diffuse through the membrane more readily than the heavier molecules and the parallel flow effects a net transport of the lighter molecules in one direction and the heavier molecules in the opposite direction within the chamber. By these means a concentration gradient along the chamber is established.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {12}
}