Reaction of methanol to olefin using a membrane contactor on a silica substrate

Shusei Tanizume, Sota Maehara, Katsunori Ishii, Takamasa Onoki, Takuya Okuno, Hiromasa Tawarayama, Shinji Ishikawa, Mikihiro Nomura

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A MFI zeolite membrane was synthesized on a porous silica substrate. The defect-free MFI zeolite membrane was synthesized via a secondary growth method using seed crystals (Si/Al = 20) on a silica substrate in a parent gel of Si/Al = 100. The silica substrate prevented the dissolution of the seed crystals during the synthesis to promote the MFI zeolite membrane synthesis. The MFI zeolite membranes were employed for a contactor-type reactor for methanol-to-olefins (MTO) reactions to produce olefins, such as propylene. The methanol conversion was 99.9% with the selectivity of ethylene - pentene at 91.5% for the permeate side of the membrane contactor. The propylene selectivity was high at 48.5% with the C3H6/C3H8 ratio at 236.

Original languageEnglish
Article number117647
JournalSeparation and Purification Technology
Volume254
DOIs
Publication statusPublished - 2021 Jan 1

Keywords

  • MFI
  • MTO reaction
  • Membrane contactor
  • Silica substrate
  • Zeolite

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation

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