化學銅觸媒應用於環已醇脫氫反應之研究

The Study of Dehydrogenation of Cyclohexanol on the Electroless Plated Copper Catalysts

張新福(Hsin-Fu Chang) ； 沙克亞伯(Mohammed Abu Saleque)

《化學》 52卷1期 (1994/03) Pp. 15-24

https://doi.org/10.6623/chem.1994003

摘要

本研究以伽瑪氧化鋁為載體，利用化學鍍銅法製備七種不同銅含量(9.95~24.37wt %)的銅觸媒，用來對環己醇的脫氫反應進行分析與探討。結果顯示觸媒活性隨銅含量增加而增高，至銅含量的19 wt % 達到最高值，繼續增加銅含量，反而使活性降低。而對環己銅的選擇率隨銅含量增加至某一值後，即保持約定值。据實驗結果，化學鍍銅法製備的觸媒，其活性點均勻，對環己醇之脫氫反應具有高活性及高選擇率。

關鍵字

化學銅觸煤 ； 環己醇脫氫反應

並列摘要

A systematic study was made of the variables involved in the seven Cu/γ-alumina catalysts with different copper loading (9.95~24.37 wt%) prepared by the newly developed electroless plating method for the dehydrogenation reaction of cyclobexanol. The results showed that the dehydrogenation activity increased with the copper loading upto about 19 wt% and then declined with further deposition. The selectivity to cyclohexanone significantly increased as the copper loading increased upto a certain value and then remained almost constant with further copper loading. According to the experimental results, catalysts prepare d by the electroless method have homogeneous dispersed active sites, which provide high activity and selectivity in the dehydroge nation of cyclohexanol.

並列關鍵字

Electroless copper catalyst ； Dehydrogenation of cyclohexanol