کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9610147 | 47194 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modelling of hydrodesulfurization catalysts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A mathematical model, previously developed to describe deactivation by metal deposition, has been applied to catalyst with macro-, micro- and random pore structures. Simulation results showed that effectiveness factor reduces progressively with the increasing age of the catalyst. For the macropore system, catalyst lifetime was found to be over 1 year and it is the highest in comparison with both micropore and random pore models. It was revealed that a pore structure in which the pore diameter is enlarged increases hydrodemetallization activity and will be very effective for improving metal resistance because pore-mouth plugging can be curtailed. Predicted catalyst lifetimes matched plant data very closely. The need to develop catalysts of optimum pore structure to achieve desirable goals has been validated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 109, Issues 1â4, 30 November 2005, Pages 128-134
Journal: Catalysis Today - Volume 109, Issues 1â4, 30 November 2005, Pages 128-134
نویسندگان
L.O. Oyekunle, O.B. Ikpekri, A. Jaiyeola,