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Title: Selective inorganic thin films

Abstract

Separating light gases using membranes is a technology area for which there exists opportunities for significant energy savings. Examples of industrial needs for gas separation include hydrogen recovery, natural gas purification, and dehydration. A membrane capable of separating H{sub 2} from other gases at high temperatures could recover hydrogen from refinery waste streams, and facilitate catalytic dehydrogenation and the water gas shift (CO + H{sub 2}O {yields} H{sub 2} + CO{sub 2}) reaction. Natural gas purification requires separating CH{sub 4} from mixtures with CO{sub 2}, H{sub 2}S, H{sub 2}O, and higher alkanes. A dehydrating membrane would remove water vapor from gas streams in which water is a byproduct or a contaminant, such as refrigeration systems. Molecular sieve films offer the possibility of performing separations involving hydrogen, natural gas constituents, and water vapor at elevated temperatures with very high separation factors. It is in applications such as these that the authors expect inorganic molecular sieve membranes to compete most effectively with current gas separation technologies. Cryogenic separations are very energy intensive. Polymer membranes do not have the thermal stability appropriate for high temperature hydrogen recovery, and tend to swell in the presence of hydrocarbon natural gas constituents. The authors goal ismore » to develop a family of microporous oxide films that offer permeability and selectivity exceeding those of polymer membranes, allowing gas membranes to compete with cryogenic and adsorption technologies for large-scale gas separation applications.« less

Authors:
; ;  [1]
  1. Sandia National Labs., Albuquerque, NM (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
494134
Report Number(s):
ORNL/TM-13399
ON: DE97005392; TRN: 97:003310-0030
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Apr 1997; Related Information: Is Part Of Advanced Industrial Materials (AIM) program. Annual progress report. FY 1996; PB: 292 p.
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; GASES; SEPARATION PROCESSES; THIN FILMS; PERFORMANCE TESTING; MOLECULAR SIEVES; PROGRESS REPORT; INORGANIC COMPOUNDS; ZEOLITES; HYDROGEN; METHANE; WATER VAPOR; TEMPERATURE RANGE 0400-1000 K

Citation Formats

Phillips, M. L.F., Pohl, P. I., and Brinker, C. J. Selective inorganic thin films. United States: N. p., 1997. Web. doi:10.2172/494134.
Phillips, M. L.F., Pohl, P. I., & Brinker, C. J. Selective inorganic thin films. United States. https://doi.org/10.2172/494134
Phillips, M. L.F., Pohl, P. I., and Brinker, C. J. 1997. "Selective inorganic thin films". United States. https://doi.org/10.2172/494134. https://www.osti.gov/servlets/purl/494134.
@article{osti_494134,
title = {Selective inorganic thin films},
author = {Phillips, M. L.F. and Pohl, P. I. and Brinker, C. J.},
abstractNote = {Separating light gases using membranes is a technology area for which there exists opportunities for significant energy savings. Examples of industrial needs for gas separation include hydrogen recovery, natural gas purification, and dehydration. A membrane capable of separating H{sub 2} from other gases at high temperatures could recover hydrogen from refinery waste streams, and facilitate catalytic dehydrogenation and the water gas shift (CO + H{sub 2}O {yields} H{sub 2} + CO{sub 2}) reaction. Natural gas purification requires separating CH{sub 4} from mixtures with CO{sub 2}, H{sub 2}S, H{sub 2}O, and higher alkanes. A dehydrating membrane would remove water vapor from gas streams in which water is a byproduct or a contaminant, such as refrigeration systems. Molecular sieve films offer the possibility of performing separations involving hydrogen, natural gas constituents, and water vapor at elevated temperatures with very high separation factors. It is in applications such as these that the authors expect inorganic molecular sieve membranes to compete most effectively with current gas separation technologies. Cryogenic separations are very energy intensive. Polymer membranes do not have the thermal stability appropriate for high temperature hydrogen recovery, and tend to swell in the presence of hydrocarbon natural gas constituents. The authors goal is to develop a family of microporous oxide films that offer permeability and selectivity exceeding those of polymer membranes, allowing gas membranes to compete with cryogenic and adsorption technologies for large-scale gas separation applications.},
doi = {10.2172/494134},
url = {https://www.osti.gov/biblio/494134}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 01 00:00:00 EST 1997},
month = {Tue Apr 01 00:00:00 EST 1997}
}