Acta Chimica Sinica ›› 2007, Vol. 65 ›› Issue (7): 625-630.
沈伟, 杨新艳, 黄静静, 沈江, 杜俊明, 徐华龙*
SHEN Wei; YANG Xin-Yan; HUANG Jing-Jing; SHEN Jiang; DU Jun-Ming; XU Hua-Long*
The coupling process of dehydrogenation of 1,4-butanediol and hydrogenation of dimethyl maleate over CuO/SiO2 catalysts to produce one important fine chemical γ-butyrolactone was carried out in a continuous fixed bed reactor under atmospheric pressure. Compared to the conventional reaction process, the activities of catalysts for hydrogenation of dimethyl maleate and dehydrogenation of 1,4-butanediol were enhanced through the coupling process. Under optimum reaction conditions, the conversion of 1,4-butanediol and dimethyl maleate reached 100%, and the selectivity of γ-butyrolactone was 98%. The results of XRD and TPR indicated that the optimized loading weight of CuO was about w＝21%, which is in accordance with the monolayer dispersion threshold value. The active sites were Cu0, the proportion of congregated CuO were increased dramatically as CuO loading weight was higher than 21%.
SHEN Wei; YANG Xin-Yan; HUANG Jing-Jing; SHEN Jiang; DU Jun-Ming; XU Hua-Long*. Coupling Process of Dehydrogenation of 1,4-Butanediol and Hydrogenation of Dimethyl Maleate over CuO/SiO2 Catalysts[J]. Acta Chimica Sinica, 2007, 65(7): 625-630.
Export EndNote|Reference Manager|ProCite|BibTeX|RefWorks