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Pervaporation Membranes Highly Selective For Volatile Solvents Present In Fermentation Broths
Pervaporation Membranes Highly Selective For Volatile Solvents Present In Fermentation Broths
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机译:渗透汽化膜对发酵液中存在的挥发性溶剂具有高度选择性
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摘要
Liquid membrane systems are provided for use in pervaporation techniques that achieves high selectivity, ensure stability and prevent contamination of the fermentation broth. Tri-n-octylamine (TOA), tri-laurlyamine or tri-decylamine as a liquid membrane is immobilized in the pores of a hydrophobic hollow fiber substrate having a nanoporous hydrophobic coating on the broth side. The liquid membrane in the coated hollow fibers demonstrate high selectivity and reasonable mass fluxes of solvents in pervaporation. The mass fluxes were substantially increased with the same selectivity of solvents when an ultrathin liquid membrane was used. The addition of butanol into the feed solution increases membrane selectivity.
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