Sage Journals: Discover world-class research

Abstract

Fiber and textile scientists have made great strides in the formation of single and multihole hollow fibers which are of significant practical value to separation science. Pervaporation through bicomponent/composite hollow fibers represents a major potential for the separation of organic and aqueous-organic mixtures. By appropriate selection of the exposed membrane, high throughputs at high selectivities with good chemical and physical stability may be achieved. The article analyzes the transport of isopentane through a composite of silicone rubber and polysulfone asymmetrical hollow fiber membrane. A one parameter mathematical model of the pervaporation process is developed. The parameter is related to the sorption and transport properties of the penetrant through the membrane layers. Pervaporation parameter is a useful tool for membrane characterization and process design.

Keywords

hollow fibers pervaporation bicomponent/composite membranes isopentane pervaporation parameter

References

Aneja, A. (1994). Spinneret for the Production of Hollow Filaments, US Patent 5-5,330-330,348-348, (July 19).

Aneja, A. (1996). Continuous Hollow Filaments, Yarns, and Tows, US Patent 5,532,060, (July 2).

Smitha, B. , Subanya, D. , Sridhar, S. and Ramakrishna, M. (2004). Separation of Organic–Organic Mixtures by Pervaporation – A Review , J. of Membrane Science, 241(1): 1–21 .

Satyanarayana, S. , Sharma, A. and Bhattacharya, P. (2004). Composite Membrane for Hydrophobic Pervaporation, Study with the Toluene-Water System , Chemical Engineering Journal, 102(2): 171–184 .

Wood, M. , Matruura, T. and Duvnjak, Z. (1994). Effect of the Addition of Fructose on the Pervaporation of Ethanol-water Mixtures by Silicone-rubber Coated Polyethersulfone Membranes , Separation Science and Technology, 29(12): 1609–1619 .

Heintz, A. and Stephen, W. (1994). A Generalized Solution Diffusion Model of the Pervaporation Process through Composite Membranes, Part I. Prediction of Mixtures Solubilities in the Dense Active Layer using the UNIQUAC Model , J. of Membrane Science, 89(2): 143–151 .

Aptel, P. , Jozefowicz, J. , Morel, G. and Neel, J. (1972). Liquid Transport through Membranes Prepared by Grafting of Polar Monomers onto Poly(tetrafluoroethylene) Films. I. Some Fractionations of Liquid Mixtures by Pervaporation , J. of Applied Poly. Sci., 16: 1061–1076 .

Aptel, P. , Cuny, J. , Jozefowicz, J. , Morel, G. and Neel, J. (1974). Liquid Transport through Membranes Prepared by Grafting of Polar Monomers onto Poly(tetrafluoroethylene) Films. III Steady-state Distribution in Membrane during Pervaporation , J. of Applied Poly. Sci., 18: 365–378 .

Hoover, K. and Hwang, Sun-Tak (1982). Pervaporation by a Continuous Membrane Column , J. of Membrane Science, 10: 253–271 .

10.

Featherstone, W. and Cox, T. (1971). Separation of Aqueous-organic Mixtures by Pervaporation , BCE and Process Technology, 16(9): 817–819 .

11.

Rautenbach, R. and Albrecht, R. (1980). Separation of Organic Binary Mixtures by Pervaporation , J. of Membrane Sci., 7: 203–223 .

12.

Henis, J.M. and Tripodi, M.K. (1981) Composite Hollow Fiber Membranes for Gas Separation: The Resistance Model Approach , J. of Membrane Sci., 8: 233–246 .

13.

Kucharski, M. and Stelmasrek, J. (1967). Separation of Liquid Mixtures by Permeation , International Chemical Engineering, 7(4): 618–622 .

14.

Yamada, S. (1981). Evaluation of Pervaporation Membrane for Separation of Liquid–Liquid Mixture , Membrane, 613: 168–184 .

15.

Yamada, S. and Hamaya, T. (l979). Liquid Permeation and Separation by Surface Modified Membranes , Polymer Preprints, 20(1).

16.

Hilderbrand, J. and Scott, R.L. (1964). Solubility of Non-electrolytes, Dover Publications, New York .

17.

Koros, W. (2004). Evolving Beyond the Thermal Age of Separation Processes: Membranes can Lead the Way , AIChE Journal, 50(10): 2326–2334 .

18.

Greenlaw, F. , Shelden, R.A. and Thompson, E.V. (1977). Dependence of Diffusive Permeation Rates on Upstream and Downstream Pressures. II. Two Component Permeant , J. Membrane Sci., 2: 333–348 .

19.

Shelden, R.A. and Thompson, E.V. (1978). Dependence of Diffusive Permeation Rates on Upstream and Downstream Pressures. III. Membrane Selectivity and Implications for Separation Processes , J. of Membrane Sci., 4: 115–127 .

20.

Misra, A. , Kroesser, F.W. and Shelden, R.A. (1973). The Effects of Solutes on the Pervaporation of Water-methanol Mixtures through Cellophane , J. of Polymer Sci. Symp., 41: 145–153 .

21.

Aptel, P. , Challard, N. , Cuny, J. and Neel, J. (1976). Application of the Pervaporation Process to Separate Azeotropic Mixtures , J. Membrane Sci., 1: 271–287 .

22.

Shantora, V. and Huang, R.Y.M. (1981). Separation of Liquid Mixtures by using Polymer Membranes. III. Grafted Poly (vinyl alcohol) Membranes in Vacuum Permeation and Dialysis , J. Applied Poly. Sci., 26: 3223–3243 .

23.

Hanbury, W. , Yuceer, A. , Tzimopoulos, M. and Byabagambi, C. (1981). Pressure Drop along the Bores of Hollow Fiber Membranes – Their Measurement, Prediction and Effect on Fiber Bundle Performance , Desalination, 38: 301–318 .

24.

Hermans, J.J. (1978). Physical Aspects Governing the Design of Hollow Fiber Modules , Desalination, 26: 45–62 .

Bicomponent Hollow Fibers for Pervaporation

Abstract

Keywords

References