کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
638551 | 1456173 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study on the reproducibility of mordenite tubular membranes used in the dehydration of ethanol
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The reproducibility of the preparation of mordenite membranes by seeded hydrothermal synthesis and of subsequent alkaline post-synthetic treatments has been studied in terms of the weight (zeolite) gained or lost in the process, and of the pervaporation performance regarding water/ethanol separation factor and water flux. To attain statistically significant results, a total of 71 membranes were prepared under the same synthesis conditions. Of these, 52 (selected in view of their pervaporation performance) were subjected to hydrothermal postreatment (at 180 °C and pH 10) by immersion into different volumes (in the 31-124 mL range) of alkaline solution. Statistical analysis indicated that the post-synthetic treatment increased the dispersion of membrane performance results, especially when the membranes were treated with a higher volume of alkaline solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 299, Issues 1â2, 1 August 2007, Pages 166-173
Journal: Journal of Membrane Science - Volume 299, Issues 1â2, 1 August 2007, Pages 166-173
نویسندگان
Alberto Navajas, Reyes Mallada, Carlos Téllez, JoaquÃn Coronas, Miguel Menéndez, Jesús SantamarÃa,