TY - JOUR

T1 - Ethanol purification from methanol via pervaporation using polybеnzoхazinonеimidе membrane

AU - Pulyalina, Alexandra Yu.

AU - Polotskaya, Galina A.

AU - Veremeychik, Kseniya Yu.

AU - Goikhman, Mikhail Ya.

AU - Podeshvo, Irina V.

AU - Toikka, Alexander M.

PY - 2015

Y1 - 2015

N2 - Polybenzoxazinoneimide membrane was prepared in three steps: a dichlorodianhydride (obtained by the reaction of trimellitic anhydride with 4,4′-oxydianiline) was treated with methylene-bis(anthranilic acid). The resulting polyamic acid was dissolved in N-methylpyrrolidone, the solution was cast as a thin film, the solvent was evaporated and the membrane was heated under controlled conditions to convert polyamic acid into polybenzoxazinoneimide. Density, free volume parameters, sorption parameters for methanol and ethanol of the membrane were determined. The membrane was used for the pervaporation of methanol/ethanol mixtures containing 5–20wt.%methanol which aremixturesmodeling bioalcohol. The membrane was preferentially permeated by methanol with high separation factors.

AB - Polybenzoxazinoneimide membrane was prepared in three steps: a dichlorodianhydride (obtained by the reaction of trimellitic anhydride with 4,4′-oxydianiline) was treated with methylene-bis(anthranilic acid). The resulting polyamic acid was dissolved in N-methylpyrrolidone, the solution was cast as a thin film, the solvent was evaporated and the membrane was heated under controlled conditions to convert polyamic acid into polybenzoxazinoneimide. Density, free volume parameters, sorption parameters for methanol and ethanol of the membrane were determined. The membrane was used for the pervaporation of methanol/ethanol mixtures containing 5–20wt.%methanol which aremixturesmodeling bioalcohol. The membrane was preferentially permeated by methanol with high separation factors.

M3 - Article

VL - 139

SP - 178

EP - 185

JO - Fuel Processing Technology

JF - Fuel Processing Technology

SN - 0378-3820

ER -