کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5498011 1532076 2017 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of holdup and axial dispersion of liquid phase in a catalytic exchange column using radiotracer technique
ترجمه فارسی عنوان
بررسی پراکندگی محوری و محوری فاز مایع در یک ستون تبادل کاتالیزوری با استفاده از روش رادیوتراپی
کلمات کلیدی
ستون تبادل کاتالیستی، کنتاکتور تختخواب، توزیع زمان اقامت، آبگریز، آب دوست، رادیوتراپی، بروم 82، میانگین زمان اقامت، نگه دارید مدل پراکندگی محوری پراکندگی محوری با مدل مبادله، شماره پکله، تعداد بوتنشتاین،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
چکیده انگلیسی
Holdup and axial dispersion of liquid phase in a catalytic exchange column were investigated by measuring residence time distributions (RTD) using a radiotracer technique. RTD experiments were independently carried out with two different types of packings i.e. hydrophobic water-repellent supported platinum catalyst and a mixture (50% (v/v)) of hydrophobic catalyst and a hydrophillic wettable packing were used in the column. Mean residence times and hold-ups of the liquid phase were estimated at different operating conditions. Axial dispersion model (ADM) and axial dispersion with exchange model (ADEM) were used to simulate the measured RTD data. Both the models were found equally suitable to describe the measured data. The degree of axial mixing was estimated in terms of Peclet number (Pe) and Bodenstein number (Bo). Based on the obtained parameters of the ADM, correlations for total liquid hold-up (HT) and axial mixing in terms of Bo were proposed for design and scale up of the full-scale catalytic exchange column.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 121, March 2017, Pages 51-60
نویسندگان
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