▎ 摘　　要

NOVELTY - Membrane distillation and pervaporation system comprises membrane distillation system (10) which further comprises sweep gap membrane distillation module and microwave unit, and pervaporation system (18) which is provided in fluid communication with membrane distillation system, where pervaporation system comprises membrane module and liquid nitrogen trap. USE - Membrane distillation and pervaporation system used for downstream recovery of fermentation product (claimed). ADVANTAGE - The membrane distillation and pervaporation system helps in improving recovery of biofuels and solvents; and reduces energy consumption. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for downstream recovery of fermentation product, which involves: (a) separating alcohol from water alcohol mixture upon introduction of water alcohol mixture to carbon nanotube immobilized membrane to recover alcohol with trace amounts of water; and (b) separating alcohol from alcohol with trace amounts of water upon introduction of alcohol with trace amounts of water to dense membrane to recover substantially pure alcohol. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of membrane distillation and pervaporation hybrid system. Membrane distillation system (10) Feed stream (12) Alcohol recovery with trace amounts of water (16) Pervaporation system (18) Pure/substantially pure alcohol (22)