Pervaporation of methanol/dimethyl carbonate using SiO2 membranes with nano-tuned pore sizes and surface chemistry

Pervaporation of methanol/dimethyl carbonate using SiO2 membranes with nano-tuned pore sizes and surface chemistry

Porous silica membranes with different pore sizes (average pore size: 0.3–1.2 nm) and surface chemistry were prepared from SiO2, steam‐treated SiO2, SiO2ZrO2, and SiO2TiO2 by sol‐gel processing, and were applied to the pervaporation (PV) separation of methanol (MeOH) /dimethyl carbonate (DMC) mixt...

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Veröffentlicht in:AIChE journal 2011-08, Vol.57 (8), p.2079-2089
Hauptverfasser: Tsuru, Toshinori, Sasaki, Akifumi, Kanezashi, Masakoto, Yoshioka, Tomohisa
Format: Artikel
Sprache:eng
Schlagworte:
Adsorption
Applied sciences
Chemical engineering
Exact sciences and technology
Membrane separation (reverse osmosis, dialysis...)
methanol/dimethyl carbonate
pervaporation
silica membrane
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Zusammenfassung:Porous silica membranes with different pore sizes (average pore size: 0.3–1.2 nm) and surface chemistry were prepared from SiO2, steam‐treated SiO2, SiO2ZrO2, and SiO2TiO2 by sol‐gel processing, and were applied to the pervaporation (PV) separation of methanol (MeOH) /dimethyl carbonate (DMC) mixtures at 50°C. Although SiO2ZrO2 membranes demonstrated a separation factor of
ISSN:0001-1541
1547-5905
DOI:10.1002/aic.12436