1.Ethanol Dewatering 2.Methanol dehydration 3.Isopropanol dehydration 4.solvent recycle 5.zeolite
1.definination
NaA membrane is an energy efficient combination of membrane permeation and evaporation. It's considered an attractive alternative to other separation methods for a variety of processes.
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.
Pervaporation is also used for the dehydration of organic solvents and the removal of organics from aqueous streams.
Additionally, pervaporation has emerged as a good choice for separation heat sensitive products.
2.characteristics
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 3.purpose and function
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 pervaporation NaA membrane