Separation of mtbe-methanol mixtures by pervaporation

H.C. Park, N.E. Ramaker, M.H.V. Mulder, C.A. Smolders

Research output: Contribution to journalArticleAcademicpeer-review

68 Citations (Scopus)


Membranes made of a polymer blend of poly(acrylic acid) and poly(vinyl alcohol) were evaluated for the separation of methanol from methyl tert-butyl ether (MTBE) by pervaporation. The influence of the blend composition and the feed composition on the pervaporation performance were investigated. Methanol permeates preferentially through all tested blend membranes, and the selectivity increases with increasing poly(vinyl alcohol) content in the blends. However, a flux decrease is observed with increasing poly(vinyl alcohol) content. With increasing feed temperature the flux increases, and the selectivity remains constant. In addition, the influence of crosslinking on the permselectivity was investigated. The pervaporation flux decreases with increasing crosslinking density, but the selectivity is enhanced. This is due to a more rapid decrease in the component flux of MTBE compared to that of methanol.
Original languageEnglish
Pages (from-to)419-433
Number of pages15
JournalSeparation Science and Technology (Philadelphia)
Issue number3
Publication statusPublished - 1995


Dive into the research topics of 'Separation of mtbe-methanol mixtures by pervaporation'. Together they form a unique fingerprint.

Cite this