کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7088428 | 1460047 | 2018 | 52 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental evaluation of the separation of aromatic compounds using falling film distillation on a pilot scale
ترجمه فارسی عنوان
ارزیابی تجربی از جداسازی ترکیبات معطر با استفاده از تقطیر فیلم سقوط در مقیاس آزمایشی
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کلمات کلیدی
ترکیبات معطر، تقطیر فیلم سقوط، مقیاس آزمایشی، ذخیره انرژی، فشار جو،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
This study evaluated a new process for separation of aromatic compounds based on falling film distillation at thermosyphon-assisted atmospheric pressure (Destubcal Technology), in order to obtain enriched mass fractions of toluene in the distillate stream. Two compact experimental units were used: single-tube and multi-tubes on a pilot scale. The experimental tests were divided into two groups: isothermal and non-isothermal condition. The optimal feed mass flow rate, evaporator temperature and feed temperature conditions were found to be 25.13â¯kgâ¯hâ1, 102.10â¯Â°C and 132.90â¯Â°C, respectively, starting from a feed concentration of 43% (m/m). The best result was found by using the single-tube unit with about 25.24% (m/m) enrichment of mass fraction of toluene in the distillate stream. There was no relevant difference in results between the isothermal and non-isothermal conditions. The results found in the single-tube and multi-tubes pilot scale units were similar, showing toluene mass flow values at the distillate stream of 2.96â¯kgâ¯hâ1 and 44.76â¯kgâ¯hâ1 respectively; thus, they indicate high productivity. The new alternative for distillation of aromatic compounds proposed in this article shows a satisfactory result when compared to conventional distillation, because the Destubcal Technology had a lower energetic requirement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering and Processing - Process Intensification - Volume 130, August 2018, Pages 296-308
Journal: Chemical Engineering and Processing - Process Intensification - Volume 130, August 2018, Pages 296-308
نویسندگان
Valdemar Francisco da Silva Filho, José Luiz Francisco Alves, Gabriel Francisco Reus, Ricardo Antonio Francisco Machado, Cintia Marangoni, Ariovaldo Bolzan,