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Title: Mechanism of gas permeation through polymer membranes. Progress report, June 1, 1979-March 31, 1980

Abstract

The objective is to assess the validity of a free-volume model of gas permeation through nonporous polymeric membranes (5-7). During the past report period, diffusion and solubility coefficients for CO/sub 2/, C/sub 2/H/sub 4/, and C/sub 3/H/sub 8/ in polyethylene rods have been measured at temperatures from 5/sup 0/ to 35/sup 0/C and at pressures of up to 30 atm. Characteristic free-volume parameters were determined from these data by means of an improved computational technique. The parameters were used to predict permeability coefficients for the transport of the above gases through polyethylene membranes. The theoretical permeability coefficients were found to be in very satisfactory agreement with experimental values obtained from independent permeability measurements. Rates of permeation have also been measured for 50% CO/sub 2/-50% C/sub 2/H/sub 4/, 74.9% CO/sub 2/-25.1% C/sub 2/H/sub 4/, and 50% CO/sub 2/-50% C/sub 3/H/sub 8/ mixtures between 20 and 50/sup 0/C and at pressures of up to 28 atm. The permeability coefficients for the components of the mixtures were found to be higher than those of the pure gases, as predicted by the free-volume model.

Authors:
; ;
Publication Date:
Research Org.:
Syracuse Univ., NY (USA). Dept. of Chemical Engineering and Materials Science
OSTI Identifier:
5214230
Report Number(s):
DOE/ER/05015-2
DOE Contract Number:  
AS02-78ER05015
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 04 OIL SHALES AND TAR SANDS; 36 MATERIALS SCIENCE; GASES; PERMEABILITY; MEMBRANES; CARBON DIOXIDE; ETHYLENE; MEMBRANE TRANSPORT; OSMOSIS; POLYMERS; PROPANE; SOLUBILITY; ALKANES; ALKENES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; DIFFUSION; FLUIDS; HYDROCARBONS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; 500200* - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989); 040201 - Oil Shales & Tar Sands- Site Geology- (-1989); 360400 - Polymers & Plastics- (-1987)

Citation Formats

Stern, S. A., Kulkarni, S. S., and Mauze, G. R. Mechanism of gas permeation through polymer membranes. Progress report, June 1, 1979-March 31, 1980. United States: N. p., 1980. Web. doi:10.2172/5214230.
Stern, S. A., Kulkarni, S. S., & Mauze, G. R. Mechanism of gas permeation through polymer membranes. Progress report, June 1, 1979-March 31, 1980. United States. https://doi.org/10.2172/5214230
Stern, S. A., Kulkarni, S. S., and Mauze, G. R. 1980. "Mechanism of gas permeation through polymer membranes. Progress report, June 1, 1979-March 31, 1980". United States. https://doi.org/10.2172/5214230. https://www.osti.gov/servlets/purl/5214230.
@article{osti_5214230,
title = {Mechanism of gas permeation through polymer membranes. Progress report, June 1, 1979-March 31, 1980},
author = {Stern, S. A. and Kulkarni, S. S. and Mauze, G. R.},
abstractNote = {The objective is to assess the validity of a free-volume model of gas permeation through nonporous polymeric membranes (5-7). During the past report period, diffusion and solubility coefficients for CO/sub 2/, C/sub 2/H/sub 4/, and C/sub 3/H/sub 8/ in polyethylene rods have been measured at temperatures from 5/sup 0/ to 35/sup 0/C and at pressures of up to 30 atm. Characteristic free-volume parameters were determined from these data by means of an improved computational technique. The parameters were used to predict permeability coefficients for the transport of the above gases through polyethylene membranes. The theoretical permeability coefficients were found to be in very satisfactory agreement with experimental values obtained from independent permeability measurements. Rates of permeation have also been measured for 50% CO/sub 2/-50% C/sub 2/H/sub 4/, 74.9% CO/sub 2/-25.1% C/sub 2/H/sub 4/, and 50% CO/sub 2/-50% C/sub 3/H/sub 8/ mixtures between 20 and 50/sup 0/C and at pressures of up to 28 atm. The permeability coefficients for the components of the mixtures were found to be higher than those of the pure gases, as predicted by the free-volume model.},
doi = {10.2172/5214230},
url = {https://www.osti.gov/biblio/5214230}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {4}
}