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Title: Apparatus for diffusion separation

Abstract

1. The method of testing the separation efficiency of porous permeable membranes which comprises causing a stream of a gaseous mixture to flow into contact with one face of a finely porous permeable membrane under such conditions that a major fraction of the mixture diffuses through the membrane, maintaining a rectangular cross section of the gaseous stream so flowing past said membrane, continuously recirculating the gas that diffuses through said membrane and continuously withdrawing the gas that does not diffuse through said membrane and maintaining the volume of said recirculating gas constant by continuously introducing into said continuously recirculating gas stream a mass of gas equivalent to that which is continuously withdrawn from said gas stream and comparing the concentrations of the light component in the entering gas, the withdrawn gas and the recirculated gas in order to determine the efficiency of said membrane.

Inventors:
 [1];  [2]
  1. Ann Arbor, MI
  2. Rochester, NY
Issue Date:
Research Org.:
UNION CARBIDE CORP
OSTI Identifier:
862613
Patent Number(s):
3973928
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; diffusion; separation; method; testing; efficiency; porous; permeable; membranes; comprises; causing; stream; gaseous; mixture; flow; contact; finely; membrane; conditions; major; fraction; diffuses; maintaining; rectangular; section; flowing; past; continuously; recirculating; gas; withdrawing; diffuse; volume; constant; introducing; mass; equivalent; withdrawn; comparing; concentrations; light; component; entering; recirculated; determine; separation efficiency; major fraction; permeable membrane; gaseous stream; gaseous mixture; gas stream; recirculating gas; flowing past; diffusion separation; permeable membranes; comprises causing; circulating gas; finely porous; continuously withdrawn; porous permeable; /95/

Citation Formats

Nierenberg, William A, and Pontius, Rex B. Apparatus for diffusion separation. United States: N. p., 1976. Web.
Nierenberg, William A, & Pontius, Rex B. Apparatus for diffusion separation. United States.
Nierenberg, William A, and Pontius, Rex B. Tue . "Apparatus for diffusion separation". United States. https://www.osti.gov/servlets/purl/862613.
@article{osti_862613,
title = {Apparatus for diffusion separation},
author = {Nierenberg, William A and Pontius, Rex B},
abstractNote = {1. The method of testing the separation efficiency of porous permeable membranes which comprises causing a stream of a gaseous mixture to flow into contact with one face of a finely porous permeable membrane under such conditions that a major fraction of the mixture diffuses through the membrane, maintaining a rectangular cross section of the gaseous stream so flowing past said membrane, continuously recirculating the gas that diffuses through said membrane and continuously withdrawing the gas that does not diffuse through said membrane and maintaining the volume of said recirculating gas constant by continuously introducing into said continuously recirculating gas stream a mass of gas equivalent to that which is continuously withdrawn from said gas stream and comparing the concentrations of the light component in the entering gas, the withdrawn gas and the recirculated gas in order to determine the efficiency of said membrane.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {8}
}

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