کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9610371 | 47172 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of the viscosity on the liquid hold-up in trickle-bed reactors with structured packings
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
The influence of liquid viscosity on liquid hold-up in structured packings under co-current gas-liquid downward flow operation has been investigated for liquid viscosity from 1 to 20Â cP. The liquid hold-up has been determined on a 400Â mm internal diameter column by gamma tomographic cross-sectional measurements. An important influence of the viscosity on the liquid hold-up is observed. It is shown that, the widely used model supported by Bravo et al. [J.L. Bravo, J.A. Rocha, J.R. Fair, Hydrocarbon Process. January (1985) 91] assuming 1D fully established vertical liquid film flow does not agree with the experimental data. From experiments, the different assumptions used in the 1D model are discussed. On the basis of these results, a new correlation is proposed, which enables to calculate the hold-up from the viscosity, the liquid flow rate and the geometry of the packing. A comparison with data of literature is done.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 105, Issues 3â4, 15 August 2005, Pages 673-679
Journal: Catalysis Today - Volume 105, Issues 3â4, 15 August 2005, Pages 673-679
نویسندگان
Réda Sidi-Boumedine, Ludovic Raynal,