31 شهریور 1400

علی ایزدبخش

مرتبه علمی:
نشانی: دانشکده مهندسی نفت، گاز و پتروشیمی - گروه مهندسی شیمی
تحصیلات: مهندسی شیمی
تلفن:
دانشکده: دانشکده مهندسی نفت، گاز و پتروشیمی

مشخصات پژوهش

عنوان Effect of Copper and Cerium on the Performance of Ni-SBA-16 in the Partial Oxidation of Methane
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
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مجله Reaction Kinetics Mechanisms and Catalysis
شناسه DOI
پژوهشگران زهرا شکوهی شولی (نفر اول) ، علی ایزدبخش (نفر دوم) ، علی محمد صنعتی (نفر سوم)

چکیده

In this research, the effect of Ce, Cu and Ce-Cu promoters on the performance of Ni/SBA-16 catalyst in partial oxidation of methane reaction was investigated. The Ni/SBA-16 catalyst with 9.1 wt% Ni content without promoter and Ni/SBA-16 catalyst promoted with cerium, copper, copper-cerium with equimolar to nickel content were prepared and their performance in methane partial oxidation reaction were evaluated. The prepared catalysts were characterized by XRD, N2 adsorption and EDX-FESEM analysis techniques. The N2 adsorption isotherms of catalyst samples showed that adding promoters to the Ni/SBA-16 catalyst partly decreased the surface area of catalysts. Furthermore, the results using XRD analysis partly demonstrated dispersion of nickel particle for catalyst Cu-promoted. Also, SEM analysis showed a similar size of nano crystallites in the range of 8-20 nm for all catalyst samples. The results of evaluation of catalytic activities of the catalysts showed high activity of unpromoted and Ce-promoted nickel catalyst in methane conversion (? 93%) remained stable for 3 h. The effects of other reaction parameters such as temperature, gas hourly space velocity (GHSV) and molar ratio of the feed were also evaluated and reported.