28 شهریور 1400
سيدعبداللطيف هاشمي فرد

سیدعبداللطیف هاشمی فرد

مرتبه علمی: دانشیار
نشانی: دانشکده مهندسی نفت، گاز و پتروشیمی - گروه مهندسی شیمی
تحصیلات: دکترای تخصصی / مهندسی شیمی
تلفن: 09177755574
دانشکده: دانشکده مهندسی نفت، گاز و پتروشیمی

مشخصات پژوهش

عنوان
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نوع پژوهش مقالات در همایش ها
کلیدواژه‌ها
membrane, thickness, asymmetric, plasticization, permeance
پژوهشگران مسعود صابری (نفر اول) ، سیدعبداللطیف هاشمی فرد (نفر دوم) ، علی اکبر دادخواه (نفر سوم)

چکیده

Penetrant induced plasticization of glassy membranes due to CO2has been the subject of a number of recent researches. Plasticization causes decreasing in membrane selectivity. In this work, effect of thickness on plasticization behavior of PEI membrane fabricated by dry/wet phase inversion was investigated. NMP as less volatile solvent, THF as volatile solvent and Ethanol as non-solvent was used for fabrication asymmetric membranes. Thickness of PEI membranes was changed with alteration in residence time of dry phase inversion step. The results show that for thin membranes, CO2permeanceincreased with pressure. For thicker membranes, CO2permeanceis lower than thin films and permeancehad initially decreasing trend, then increasing after a minimum reached. N2permeancesdecreased