Mechanistic study of methanol/water/hydrogen separation through ZSM-5 membrane

Masahiko Matsukata, Kenichi Sawamura, Teruaki Izumi, Mitsuko Takada, Yasushi Sekine, Tetsu Osuna, Eiichi Kikuchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this communication, we will report our recent results on the mechanism of selective permeation of steam and methanol from gas mixtures through ZSM-5 membrane. ZSM-5 membrane was prepared on the outer surface of a porous alpha-alumina tubular support by a secondary-growth method. Based on the results of structural characterization using FE-SEM, TEM, etc., ZSM-5 crystals tightly connected with each other in the absence of amorphous phase. ZSM-5 membrane was highly selective to steam and methanol, and hydrogen was retained in the permeation side at temperatures ranging from 150 to 300°C. Permeation and adsorption experimental results suggested that strong adsorption of water and methanol on Na cation occluded in the micropore of ZSM-5 contributed to the appearance of selective permeation. Such separation properties would be promising for membrane extractor in reactions such as Fischer-Tropsch synthesis and methanol synthesis.

Original languageEnglish
Title of host publication234th ACS National Meeting, Abstracts of Scientific Papers
Publication statusPublished - 2007 Dec 31
Event234th ACS National Meeting - Boston, MA, United States
Duration: 2007 Aug 192007 Aug 23

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Conference

Conference234th ACS National Meeting
CountryUnited States
CityBoston, MA
Period07/8/1907/8/23

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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