Development of pure silica cha membranes for co2 separation

Daishi Takayama, Katsunori Ishii, Mikihiro Nomura, Takamasa Onoki, Takuya Okuno, Hiromasa Tawarayama, Shinji Ishikawa

研究成果: Article査読

抄録

Thin pure-silica chabazite (Si-CHA) membranes have been synthesized by using a secondary growth method on a porous silica substrate. A CO2 permeance of 2.62 × 10−6 mol m−2 s−1 Pa−1 with a CO2/CH4 permeance ratio of 62 was obtained through a Si-CHA membrane crystallized for 8 h using a parent gel of H2O/SiO2 ratio of 4.6. The CO2 permeance through the Si-CHA membrane on a porous silica substrate was twice as high as that through the membrane synthesized on a porous alumina substrate, which displayed a similar zeolite layer thickness.

本文言語English
論文番号926
ジャーナルMembranes
11
12
DOI
出版ステータスPublished - 2021 12月

ASJC Scopus subject areas

  • 化学工学(その他)
  • プロセス化学およびプロセス工学
  • ろ過および分離

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