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  4. Carbon membrane gas separation of binary CO2 mixtures at high pressure
 
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2016
Journal Article
Title

Carbon membrane gas separation of binary CO2 mixtures at high pressure

Abstract
The key feature of inorganic membranes is the ability to operate at high temperature and pressure. Even supercritical solvents can be processed by these membranes, whereas polymer membranes tend to swell and consequently suffer from reduced selectivity and mechanical strength. The combination of chemical and mechanical stability of ceramic membranes opens completely new fields of applications, e.g. in membrane reactors for chemical reactions like H2-synthesis by dehydrogenation. This work investigates the selectivity and permeance of carbon membranes for binary mixtures composed of Helium, Nitrogen, Oxygen or Carbon dioxide in a pressure region up to 20 MPa and a temperature range from 300 to 450 K. A Maxwell-Stefan diffusion approach has been applied to study the gas to gas and gas to membrane interactions under high pressure condition.
Author(s)
Kruse, N.
TH Köln
Schießer, Y.
TH Köln
Kämnitz, Susanne
Fraunhofer IKTS-HD
Richter, Hannes R.
Fraunhofer IKTS-HD
Voigt, Ingolf
Fraunhofer IKTS-HD
Braun, G.
TH Köln
Repke, Jens Uwe
TU Bergakademie Freiberg
Journal
Separation and purification technology  
DOI
10.1016/j.seppur.2016.03.035
Language
English
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Keyword(s)
  • carbon membrane

  • CO2 / CH4 separation

  • gas separation

  • high pressure

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