کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
643941 | 884399 | 2008 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of inner-side tubular zeolite NaA membranes in a continuous flow system
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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: Preparation of inner-side tubular zeolite NaA membranes in a continuous flow system Preparation of inner-side tubular zeolite NaA membranes in a continuous flow system](/preview/png/643941.png)
چکیده انگلیسی
Zeolite NaA membranes were synthesized on the inner side of porous titania (rutile) asymmetric tubular supports in a flow system where the synthesis gel was circulated through the support with flow rates in the range 1.5–4 mL min−1 by the action of gravity. The syntheses were carried out hydrothermally at 358 K for 6–7 h either with or without previous brush-seeding of the supports. The membranes (10–20 μm in thickness) showed great ability to dehydrate ethanol/water mixtures (92:8, w/w) by pervaporation with selectivities and fluxes, respectively, up to 8500 and 1.2 kg m−2 h−1 at 323 K. The role of intercrystalline defects in the pervaporation performance of the synthesized membranes was also investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 59, Issue 2, 15 February 2008, Pages 141–150
Journal: Separation and Purification Technology - Volume 59, Issue 2, 15 February 2008, Pages 141–150
نویسندگان
Marc Pera-Titus, Marta Bausach, Joan Llorens, Fidel Cunill,