Pervaporation membrane 1.Ethanol Dewatering 2.Methanol dehydration 3.Isopropanol dehydration
1.Pervaporation is an energy efficient combination of membrane permeation and evaporation.
2.It's considered an attractive alternative to other separation methods for a variety of processes.
3.For example, with the low temperatures and pressures involved in pervaporation, it often has cost and performance advantages for the separation of constant-boiling azeotropes.
4.Pervaporation is also used for the dehydration of organic solvents and the removal of organics from aqueous streams.
5.Additionally, pervaporation has emerged as a good choice for separation heat sensitive products.
6.Characteristics of the pervaporation process include:a.Low energy consumptionb.No entrainer required, no contaminationc.Permeate must be volatile at operating conditionsd.Functions independent of vapor/liquid equilibrium 7.Pervaporation technology can be used for the following products:MethanolEthanolPropanol & IPAButanol & IBAPentanol Cyclohexanol Benzyl alcohol Benzene Toluene PhenolAcetone Butanone Methyl isobutyl ketone (MIBK) Triethylamine Pyridine Aniline Chlorinated hydrocarbons Dichloro methane Perchloroethylene Methyl tert-butyl ether (MTBE) Ethyl tert-butyl ether (ETBE) Di-isopropyl ether (DIPE) Tetrahydro furan (THF)
inorganic and hydrophile Pervaporation membrane