کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9684951 | 1456218 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pervaporation of water from aqueous HI using Nafion®-117 membranes for the sulfur-iodine thermochemical water splitting process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Pervaporation of water from aqueous HI using Nafion®-117 membranes for the sulfur-iodine thermochemical water splitting process Pervaporation of water from aqueous HI using Nafion®-117 membranes for the sulfur-iodine thermochemical water splitting process](/preview/png/9684951.png)
چکیده انگلیسی
Nafion®-117 membranes have been successfully used to remove water from aqueous hydriodic acid (HI) by pervaporation. HI feeds were concentrated from approximately 1.7 to 5 M, and permeate concentrations ranged from 10â3 to 10â4 M, regardless of the feed HI concentration. Temperatures examined were 22, 50, 70, and 100 °C. Using 180 μm thick films, fluxes at 22 °C were 0.43 kg/m2 h, and increased with increasing system temperature to a maximum of 1.5 kg/m2 h at 100 °C. Durability studies over a period of 3 months operation revealed little membrane degradation and, in all cases, the membranes retained their bulk physical properties in that they remained flexible and plastic. More intensive thermomechanical testing revealed changes in the membrane morphology upon pervaporation of the HI feed at 100 °C, however, these changes were not reflected in the observed water transport behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 252, Issues 1â2, 15 April 2005, Pages 245-252
Journal: Journal of Membrane Science - Volume 252, Issues 1â2, 15 April 2005, Pages 245-252
نویسندگان
Christopher J. Orme, Michael G. Jones, Frederick F. Stewart,