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Pervaporation via silicon‐based membranes: Correlation and prediction of performance in pervaporation and gas permeation
Author(s) -
Moriyama Norihiro,
Kawano Yuta,
Wang Qing,
Inoue Ryota,
Guo Meng,
Yokoji Makoto,
Nagasawa Hiroki,
Kanezashi Masakoto,
Tsuru Toshinori
Publication year - 2021
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.17223
Subject(s) - permeance , pervaporation , permeation , membrane , chemical engineering , chemistry , acetone , aqueous solution , organic chemistry , materials science , biochemistry , engineering
Pervaporation (PV) is a membrane technology that holds great promise for industrial applications. To better understand the PV mechanism, PV dehydrations of various types of organic solvents (methanol, ethanol, iso‐propanol, tert‐butanol, and acetone) were performed on five types of organosilica and two types of silicon carbide‐based membranes, all with different pore sizes. Water permeance was dependent on the types of organic aqueous solutions, which suggested that organic solvents penetrated the pores and hindered the permeation of water. In addition, water permeance of various types of membranes in PV was well correlated with hydrogen permeance in single‐gas permeation. Furthermore, a clear correlation was obtained between the permeance ratio in PV and that in single‐gas permeation, which was confirmed via the modified‐gas translation model. These correlations make it possible to use single‐gas permeation properties to predict PV performance.