CO_2共存下における鉄-アルミニウム系複合酸化物触媒によるエチルベンゼンの脱水素反応

概要

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The dehydrogenation of ethylbenzene (EB) in the presence of CO_2 over a binary system oxide catalyst of iron and aluminium has been investigated. The catalytic activity was examined in relation to the different ratios of Fe_2O_3 and Al_2O_3. The yield of styrene of the Fe2O_3 catalyst was higher than that of Al_2O_3. This result means that the active site in the dehydrogenation of EB is mainly derived from the chemical property of Fe_2O_3. The yield of styrene numerically rose with an increase in ratio of Fe_2O_3. The catalyst in the ratio of Fe_2O_3 which is 75wt% showed the highest yield of styrene (16.2%). Moreover, adding alkali metal series (Rb, Sr) to this catalyst suppressed its deactivation. The specific surface areas of all the above mentioned catalysts suggest that the role of Al_2O_3 and alkali metal series is expanding the effective area of catalysts.
旭川工業高等専門学校の論文
2007-03-05