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在铂重整催化剂上五员环烷转化成芳烃是一个复杂的反应,其中包括脱氢和异构化。研究这种转化的机理,指出最难的阶段是很重要的,这样能帮助改进铂重整催化剂。在文献中五员环烷的异构脱氢反应是依次变换进行的,时而在脱氢中心上(这样的中心称为铂中心),时而在异构化中心上(这样的中心为氟中心)。然而,事实上转化的机理要复杂得多。为了研究这一个问题,我们进行了甲基环戊烷及其各种可能的异构脱氢中间产品在 Pt—Al_2O_3,HF—Al_2O_3和Pt—HF—Al_2O_3三种催化剂上的铂重整试验。反应
The conversion of five-membered cycloalkanes to aromatics on platinum-reforming catalysts is a complex reaction that includes dehydrogenation and isomerization. To study the mechanism of this transformation, it is important to point out the hardest stages that can help to improve the Pt reforming catalyst. In the literature, the isomerization dehydrogenation of 5-membered cycloalkanes proceeds sequentially, sometimes at the dehydrogenation center (such a center is called the platinum center) and sometimes at the isomerization center (such a center is the fluorine center) . However, in fact the mechanism of conversion is much more complex. In order to study this problem, we carried out the platinum reforming experiment of methylcyclopentane and its various possible isomeric dehydrogenation intermediates on Pt-Al 2 O 3, HF-Al 2 O 3 and Pt-HF-Al 2 O 3 catalysts. reaction