کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
638933 883729 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement of sorption and diffusion in nonporous membranes by transient permeation experiments
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Measurement of sorption and diffusion in nonporous membranes by transient permeation experiments
چکیده انگلیسی

The knowledge of sorption and diffusion of liquids or vapors and their mixtures in nonporous membranes facilitates systematic membrane selection and process design. A novel experimental technique for the measurement of sorption and diffusion in nonporous membranes is described. An experimental apparatus has been designed for carrying out the transient permeation experiments. A general time-lag analysis procedure has also been developed in order to obtain the sorption and diffusion parameters from the transient permeation data. The effects of concentration dependent diffusivities, polymer swelling and a thermodynamic correction factor have been included in the analysis. Transient permeation experiments have been carried out to determine the sorption and diffusion of acetone in polydimethylsiloxane (PDMS). The results obtained are in good agreement with data from the literature, indicating that the proposed technique is suitable for the measurement of sorption and diffusion in nonporous membranes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 287, Issue 1, 5 January 2007, Pages 111–118
نویسندگان
, , ,