Separation of olefin/paraffin mixtures using multifunctional zwitterionic compounds as carriers

I&EC 63

Hyun Woo Bae, altair1024@hotmail.com1, Dae Ki Choi, dkchoi@kist.re.kr2, Hoon Sik Kim, khs2004@khu.ac.kr1, Je Seung Lee, leejs70@khu.ac.kr1, Minserk Cheong, mcheong@khu.ac.kr1, and Sang Deuk Lee, sdlee@kist.re.kr2. (1) Department of Chemistry, Kyung Hee University, 1 Hoegi-dong, Dongdaemoon-gu, Seoul 130-701, South Korea, (2) Division of Environment and Process, Korea Institute of Science and Technology, 39-1 hawolgok-dong, Seongbuk-gu, 136-791, South Korea
Various types of multi-functional zwitterionic compounds containing both an ester and a sulfonate group were prepared and their silver nitrate salts were tested as carriers for facilitated olefin transport membranes in the separation of ethylene/ethane and propylene/propane mixtures. Ester group-containing multi-functional zwitterionic silver compounds exhibited much higher performances in comparison with methyl group-containing zwitterionic compounds. FT-IR study showed that ester-containing zwitterionic compounds interact with silver ions through both sulfonate and ester functional groups.
 

IEC Poster Session
8:00 PM-10:00 PM, Tuesday, August 21, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Industrial & Engineering Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007