Development of hydrogen permselective membranes for propylene production

Katsunori Ishii, Yuhei Nagataki, Junko Yoshiura, Yuta Saito, Takaya Nagataki, Mikihiro Nomura

Research output: Contribution to journalArticlepeer-review

Abstract

Silica hybrid membranes were developed for a membrane reactor for propane dehydrogenation reaction using a counter diffusion chemical vapor deposition (CVD) method. The effects of the alkyl chains in the silica precursor were investigated to control the membrane properties. Additionally, a membrane reactor test using a CVD silica membrane for the membrane reactor was performed and compared with only using a catalytic bed reactor. An ethyltrimethoxysilane-derived membrane deposited at 500°C exhibited a high H2/C3H8 selectivity of 650. The C3H8 conversion was 53% with C3H6 selectivity of 69% for the 600°C reaction in the membrane reactor. The conversion was slightly higher than that at equilibrium.

Original languageEnglish
Pages (from-to)260-265
Number of pages6
JournalJournal of Chemical Engineering of Japan
Volume54
Issue number5
DOIs
Publication statusPublished - 2021 May 20

Keywords

  • Counter diffusion CVD method
  • Propane dehydrogenation
  • Silica hybrid membrane

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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