سال انتشار: ۱۳۸۶

محل انتشار: پنجمین کنگره بین المللی مهندسی شیمی

تعداد صفحات: ۱۳

نویسنده(ها):

Peyman Moradi – Chemical Engineering College, Iran University of Science and Technology, Tehran, Iran
Matin Parvari – Chemical Engineering College, Iran University of Science and Technology, Tehran, Iran

چکیده:

The process of shaping heterogeneous catalysts is one of the most important steps in the formation of this type of product. Nickel-lanthanum proveskite was synthesized by the sol–gel method and shaped as a cylinder. The effects of several parameters on the shaping process and final mechanical strength of the catalyst, such as the type and amount of binder, the shaping pressure and heat treatment, have been determined. The results showed that the use of polyvinyl alcohol as the binder, with a mass ratio of binder to catalyst of 1:7, a firing temperature of 700°C and a shaping pressure of 800 bar, led to the production of a catalyst with great mechanical strength. The shaped perovskite catalyst has been tested in the methane dry reforming reaction to produce synthesis gas at atmospheric pressure, and the results have shown that conversion of CH4 and yield of CO are 0.95 and 0.7 respectively.