کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9684774 | 1456213 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Distillation with nanoporous or coated hollow fibers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Distillation of methanol-ethanol solutions in a small column containing hollow fibers is independent of whether the fibers are nanoporous or covered with a thin, highly permeable coating. The hollow fibers do not provide selectivity but serve as a form of structured packing, so that the fluid mechanics in the column is not constrained by loading and flooding. The overall mass transfer coefficient based on a vapor side driving force and measured across the fibers is around 0.03Â cm/s, the result of roughly equal mass transfer resistances in the condensate, the membrane, and the vapor. Further improvements in this form of distillation will require significant changes in module design, which reduce each of these three resistances.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 257, Issues 1â2, 15 July 2005, Pages 3-10
Journal: Journal of Membrane Science - Volume 257, Issues 1â2, 15 July 2005, Pages 3-10
نویسندگان
Jae Bin Chung, Jonathan P. DeRocher, E.L. Cussler,