TY - JOUR
T1 - Comparative study on the influence of toluene and methylcyclohexane on the performance of dimethoxydiphenylsilane-derived silica membranes prepared by chemical vapor deposition
AU - Seshimo, Masahiro
AU - Akamatsu, Kazuki
AU - Furuta, Satoshi
AU - Nakao, Shin Ichi
PY - 2015/1/22
Y1 - 2015/1/22
N2 - The influence of toluene (TOL) and methylcyclohexane (MCH) on the performance of dimethoxydiphenylsilane-derived silica membranes prepared by chemical vapor deposition was investigated. The presence of TOL decreased the H2 and N2 permeances. These decreases were more pronounced at higher TOL concentration and lower temperature. This was attributed to the adsorption of TOL, and permeance was largely recovered by regeneration in H2. The recovery of N2 permeance was less satisfactory than that of H2 permeance. The presence of MCH had a much smaller effect on membrane performance, though N2 permeance was mildly affected. The difference in the effects of TOL and MCH on membrane performance reflected the differing physical interactions of these molecules with the membrane. The interaction between TOL and silica was stronger and adsorption therefore more favorable, than that between MCH and silica. Thus, TOL was more difficult to remove from the membrane surface and pores.
AB - The influence of toluene (TOL) and methylcyclohexane (MCH) on the performance of dimethoxydiphenylsilane-derived silica membranes prepared by chemical vapor deposition was investigated. The presence of TOL decreased the H2 and N2 permeances. These decreases were more pronounced at higher TOL concentration and lower temperature. This was attributed to the adsorption of TOL, and permeance was largely recovered by regeneration in H2. The recovery of N2 permeance was less satisfactory than that of H2 permeance. The presence of MCH had a much smaller effect on membrane performance, though N2 permeance was mildly affected. The difference in the effects of TOL and MCH on membrane performance reflected the differing physical interactions of these molecules with the membrane. The interaction between TOL and silica was stronger and adsorption therefore more favorable, than that between MCH and silica. Thus, TOL was more difficult to remove from the membrane surface and pores.
KW - Chemical vapor deposition
KW - Dimethoxydiphenylsilane
KW - Methylcyclohexane
KW - Silica membrane
KW - Toluene
UR - http://www.scopus.com/inward/record.url?scp=84918826397&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84918826397&partnerID=8YFLogxK
U2 - 10.1016/j.seppur.2014.11.006
DO - 10.1016/j.seppur.2014.11.006
M3 - Article
AN - SCOPUS:84918826397
SN - 1383-5866
VL - 140
SP - 1
EP - 5
JO - Separation and Purification Technology
JF - Separation and Purification Technology
ER -