System and Process for Hybrid Membrane Distillation-Pervaporation
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United States of America Patent
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Jun 9, 2022
app pub date -
Dec 6, 2021
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Dec 6, 2021
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Abstract
A membrane distillation (MD) system consisting of a membrane module and carbon nanotube immobilized membrane for organic solvent separation is disclosed. The MD module includes a feed inlet and outlet, a sweep gas inlet, and a sweep gas outlet. Thermostats are positioned at the feed inlet and outlet to measure the change in temperature. Preferential sorption of the organic on carbon nanotube immobilized membrane contributes to enhanced solvent removal of the MD system. A pervaporation (PV) system consisting of a membrane module and polyvinyl alcohol (PVA) mixed matrix membranes with graphene oxide (GO)—carbon nanotubes (CNTs) for enhanced purification of the alcohol solution after membrane distillation to remove trace amount of water is disclosed.
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