Hydrodesulfurization (HDS) of thiophene, as a gasoline model oil, over an industrial Ni-Mo/Al₂O₃ catalyst was investigated in a continuous system under microwave irradiation. The HDS efficiency was much higher (5%–14%) under microwave irradiation than conventional heating. It was proved that the reaction was enhanced by both microwave thermal and non-thermal effects. Microwave selective heating caused hot spots inside the catalyst, thus improved the reaction rate. From the analysis of the non-thermal effect, the molecular collisions were significantly increased under microwave irradiation. However, instead of being reduced, the apparent activation energy increased. This may be due to the microwave treatment hindering the adsorption though upright S-bind (η¹) and enhancing the parallel adsorption (η⁵), both adsorptions were considered to favor to the direct desulfurization route and the hydrogenation route respectively. Therefore, the HDS process was considered to proceed along the hydrogenation route under microwave irradiation.

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在微波辐射下，在连续系统中研究了噻吩作为汽油模型油在工业Ni-Mo / Al ₂ O ₃催化剂上的加氢脱硫（HDS）。在微波辐射下，HDS效率比传统加热要高得多（5％–14％）。事实证明，微波的热效应和非热效应都可以促进反应的进行。微波选择性加热在催化剂内部引起热点，从而提高了反应速度。从非热效应的分析，在微波辐射下分子碰撞显着增加。但是，表观活化能没有降低，反而增加了。这可能是由于在微波处理妨碍吸附虽然直立S-绑定（η ¹）和增强并行吸附（η ⁵），这两个吸附被认为分别以有利于到直接脱硫途径和氢化路线。因此，HDS工艺被认为是在微波辐射下沿着加氢路线进行的。

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