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Penetration evaporated liquid mixture separation as a new type of technology , especially in organics separation azeotropic organic mixture separation with outstanding technical advantages and good prospect . The pervaporation process efficiency depends mainly on the penetration of the merits of the evaporated film performance , choose a good separation characteristics of pervaporation membrane material is to penetrate one of the core content of the evaporation studies . A mixture of methanol / MTBE study object, different from the solubility parameter of chemical structure, the physicochemical properties of the molecules of methanol and methyl tert-butyl ether (MTBE) perspective , the choice of a cellulose acetate (CA) as a substrate film material , HZSM5 zeolites and zeolite 4A as a filler , respectively, washed with acetone (AC) , and N , N - two dimethylformamide (DMF) as solvent , was prepared by pervaporation filled membrane has a good separation performance , and explore the film-forming formulations and pervaporation process. The analysis of the morphology and physical and chemical properties of the membrane using Fourier transform infrared spectroscopy ( FT - IR) , X - ray diffraction (XRD), scanning electron microscopy ( SEM ) , thermal gravimetric analysis (TGA) and mechanical properties testing a variety of characterization methods . CA-AC-HZSM5, CA-AC-4A and CA-DMF-HZSM5 fill the separation characteristics of the membrane on a mixture of methanol and MTBE . Zeolite filling quantity of methanol concentration on the membrane pervaporation performance and sorption properties of . A systematic study of the the pervaporation process operating conditions ( feed concentration , temperature , raw materials , liquid flow rate ) on the membrane separation performance . The experimental results show that the filled membrane for the CA-AC-HZSM5 HZSM5 Zeolite content of 0.2wt% , the temperature of the raw material liquid 30oC, the flow rate of 60L / h under operating conditions , separation of the methanol concentration of 20wt% of the methanol and MTBE when a mixture of total permeate flux of 226g / (m ~ 2 · h), the separation factor is 346 . Filled membrane for the CA-AC-4A , when the 4A zeolite content of 1wt% in the temperature of the raw material liquid 30oC, the flow rate of 50L / h under operating conditions , the methanol concentration was separated 20wt% methanol and MTBE, when a mixture of total penetration The flux is 202g / (m ~ 2 · h), the separation factor is 421 . The total mixture of filled membrane CA-DMF-HZSM5 HZSM5 Zeolite content of 1.5wt% , the temperature of the raw material liquid to 30oC, the flow rate of 50L / h under operating conditions , the separation of the methanol concentration of 20wt% of methanol and MTBE permeate flux 227g / (m ~ 2 · h), the separation factor of 806 .
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