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Facilitated olefin transport through room temperature ionic liquids for separation of olefin/paraffin mixtures

Title
Facilitated olefin transport through room temperature ionic liquids for separation of olefin/paraffin mixtures
Other Titles
paraffin mixtures
Author
강용수
Keywords
Ionic liquid; Interaction; Propylene; Facilitated transport
Issue Date
2012-08
Publisher
ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Citation
JOURNAL OF MEMBRANE SCIENCE, 권: 423, 페이지: 159-164
Abstract
The ideal separation factor for propylene over propane approached 3.2 through the use of room temperature ionic liquids (ILs) such as 1-methyl-3-octyl imidazolium nitrate (MOIM+NO3-, 98%) and 1-butyl-3-methyl imidazolium tetrafluoroborate (BMIM+BF4-, 98%), which may be attributable to facilitated olefin transport via specific and reversible interactions between ILs and propylene, but not propane. Specific and reversible interactions were verified experimentally from transient sorption/desorption data and FT-IR spectroscopy and theoretically by quantum mechanical calculations. The mixed gas selectivity for propylene/propane mixtures (50/50 vol%) was 2.8 through ILs whereas with PEG 400 (Mw=400), which has nearly the same viscosity, the selectivity was only 1.2. This study demonstrated for the first time facilitated olefin transport through ILs. (C) 2012 Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0376738812006047?via%3Dihubhttp://hdl.handle.net/20.500.11754/41253
ISSN
0376-7388; 1873-3123
DOI
10.1016/j.memsci.2012.08.007
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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