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Iranian Journal of Chemical Engineering، جلد ۱۴، شماره ۱، صفحات ۲۶-۳۹
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عنوان انگلیسی Methanol Steam Reforming Catalyzing over Cu/Zn/Fe Mixed Oxide Catalysts
چکیده انگلیسی مقاله Methanol steam reforming plays a pivotal role to produce hydrogen for fuel cell systems in a low temperature range. To accomplish higher methanol conversion and lower CO production, the reaction was catalyzed by CuZnFe mixed oxides. Various ratios of Fe and Cu/Zn were coprecipitated in differential method to optimize the CuZnFe structure. The sample containing 45Cu50Zn5Fe (Wt. %) revealed its maximum methanol conversion of 98.4 % and CO selectivity of 0.78 % with operating conditions of gas hourly space velocity of 18000 h-1 and steam to carbon ratio of 1.3 at 270 °C. The synthesized catalysts were analyzed by powder X-ray diffraction, N2 adsorption/desorption, temperature programmed reduction, scanning electron microscopy techniques. The results revealed that the prepared samples presented mesoporous structure with different pore size depending on the Cu/Zn/Fe ratios. The results showed that increase in Fe loading to 20 Wt. % empowered methanol conversion and decreased CO selectivity. Moreover, the optimized catalyst activity was kept constant during 17 h time on stream. Besides, operating conditions of gas hourly space velocity and steam to carbon ratios were evaluated.
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نویسندگان مقاله مهران جعفری |
hydrogen and fuel cell research laboratory, department of chemical engineering, faculty of engineering, university of kashan
سازمان اصلی تایید شده: دانشگاه کاشان (Kashan university)

عبدالله ایران خواه |
hydrogen and fuel cell research lab., chemical engineering dep., engineering faculty, university of kashan
سازمان اصلی تایید شده: دانشگاه کاشان (Kashan university)

مسعود محمودی زاده |
hydrogen and fuel cell research laboratory, department of chemical engineering, faculty of engineering, university of kashan
سازمان اصلی تایید شده: دانشگاه کاشان (Kashan university)

نشانی اینترنتی http://www.ijche.com/article_43882_00426365e8d8513f073878bd9377b77c.pdf
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