کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7088309 | 1460047 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pervaporative separation and intensification of downstream recovery of acetone-butanol-ethanol (ABE)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The feasibility of pervaporative concentration of organic compounds from an ABE mixture to reduce the energy consumption of a downstream recovery unit was investigated. Firstly, an experimental investigation was done, using a polydimethylsiloxane (PDMS) membrane and a model solution of ABE as the feed. Different operating temperatures where investigated, with 40â¯Â°C showing the most favourable results. Secondly, the experimental results were utilised as the input for process simulations using Aspen Plus. Two ABE separation schemes were studied, one consisting of only distillation (conventional process) and one with an upstream pervaporation unit followed by an alternative distillation scheme. For the proposed pervaporative scheme, the butanol concentration after pervaporation was high enough so that it could be concentrated further at the beginning of the separation train through a liquid-liquid separation. The results of the simulations indicated that the conventional scheme was the most energy intensive and that the integration with an upstream pervaporation unit decreased energy consumption with 53%. The energy requirement for the distillation scheme was 33.3â¯MJâ¯kgâ1 butanol, while that of the pervaporation-distillation scheme was 15.7â¯MJâ¯kg-1 butanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering and Processing - Process Intensification - Volume 130, August 2018, Pages 148-159
Journal: Chemical Engineering and Processing - Process Intensification - Volume 130, August 2018, Pages 148-159
نویسندگان
S. van Wyk, A.G.J. van der Ham, S.R.A. Kersten,