کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9610354 | 47172 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Imposing dynamic structures on fluidised beds
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Structuring fluidised beds can increase the conversion and selectivity, and facilitate control and scale-up. Two methods for introducing a dynamic structure into gas-solid fluidised beds are compared based on their overall hydrodynamics: electric field enhanced fluidisation and distributed secondary gas injection by a fractal injector. It is shown that, under various conditions, these systems lead to significant decreases in bubble size and bubble hold-up and to an increase in the number of bubbles. It was found that the electric field enhancement can lead to homogeneous fluidisation at lower flow rates, and the distributed secondary flow leads to smaller bubbles at higher flow rates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 105, Issues 3â4, 15 August 2005, Pages 560-568
Journal: Catalysis Today - Volume 105, Issues 3â4, 15 August 2005, Pages 560-568
نویسندگان
F. Kleijn van Willigen, D. Christensen, J.R. van Ommen, M.-O. Coppens,