Application of MFI Zeolite Membrane Prepared with Fluoride Ions to Hydrogen/Toluene Separation

Izumi Kumakiri; Lingfang Qiu; Bo Liu; Kazuhiro Tanaka; Hidetoshi Kita; Takashi Saito; Ryoichi Nishida

doi:10.1252/jcej.16we020

Separation Engineering

Application of MFI Zeolite Membrane Prepared with Fluoride Ions to Hydrogen/Toluene Separation

Izumi Kumakiri , Lingfang Qiu, Bo Liu, Kazuhiro Tanaka, Hidetoshi Kita, Takashi Saito, Ryoichi Nishida

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Keywords: Zeolite Membrane, Silicalite, Fluoride Ion, Hydrogen, Toluene

JOURNAL RESTRICTED ACCESS

2016 Volume 49 Issue 8 Pages 753-755

DOI https://doi.org/10.1252/jcej.16we020

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Abstract

MFI zeolite membranes were prepared by a secondary growth method on symmetric tubular supports. Adding fluoride ions to the synthesis gel significantly shortened the hydrothermal synthesis time. In addition, membranes prepared with fluoride ions showed more than ten-times higher hydrogen permeation rate than membranes prepared from conventional gel. MFI zeolite membrane showed hydrogen selectivity in hydrogen/toluene separation.

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