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This content will become publicly available on September 22, 2018

Title: Ionic cross-linked polyether and silica gel mixed matrix membranes for CO 2 separation from flue gas

Mixed matrix membranes (MMMs) were prepared by incorporating 10 wt%, 20 wt% and 30 wt% silica gel filler particles into novel ionic cross-linked polyether (IXPE) polymers. Porous silica gel has the advantage of high surface area that can increase the free volume and permeability in a polymer film while also being commercially available and low cost. The MMMs featured high chemical and thermal stability as well as a modest improvement in storage modulus. These features are due to the excellent interfacial interaction between silica gel filler particles and the polymer matrix. Increasing the loading of silica gel particles in MMMs resulted in higher permeability up to 120 Barrer for CO 2, which is about 40% higher than the neat polymer matrix. Finally, most importantly, the MMMs maintained a very high CO 2/N 2 selectivity performance of around 41 for all particle loadings that were tested.
Authors:
 [1] ;  [2] ;  [2] ;  [3] ;  [4]
  1. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States); Oak Ridge Inst. for Science and Education (ORISE), Oak Ridge, TN (United States)
  2. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States); Liquid Ion Solutions, LLC, Pittsburgh, PA (United States)
  3. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)
  4. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States); AECOM, Pittsburgh, PA (United States)
Publication Date:
Type:
Accepted Manuscript
Journal Name:
Separation and Purification Technology
Additional Journal Information:
Journal Volume: 191; Journal Issue: C; Journal ID: ISSN 1383-5866
Publisher:
Elsevier
Research Org:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1455425