سال انتشار: ۱۳۸۶

محل انتشار: پنجمین کنگره بین المللی مهندسی شیمی

تعداد صفحات: ۱۲

نویسنده(ها):

Majid Bahmani – Research Institute of Petroleum Industry (R.I.P.I), Catalyst Research centre, P.O.Box: 18745-4163, Blvd. Khairabad, Old Qom Road, Tehran, Iran.
Sepehr Sedighi – Research Institute of Petroleum Industry (R.I.P.I), Catalyst Research centre, P.O.Box: 18745-4163, Blvd. Khairabad, Old Qom Road, Tehran, Iran.
Seyed reza Seif Mohadecy – Research Institute of Petroleum Industry (R.I.P.I), Catalyst Research centre, P.O.Box: 18745-4163, Blvd. Khairabad, Old Qom Road, Tehran, Iran.

چکیده:

Effect of temperature gradients, for an exothermic reaction, inside a catalyst pellet and the pore size distribution on the value of tortuosity factor is studied. The structure of the catalyst pellet is simulated using a two dimensional pore network. Material and energy balances for the pore network are written and discretised using a finite difference scheme. Tortuosity factors obtained for the isothermal and non-isothermal pellets are compared. Significant variation of the estimated tortuosity factor with internal particle temperature gradient and pore size is obtained.