硫化钼基加氢脱硫催化剂活性位的研究进展

MoS_2-based hydrodesulphurization catalysts:structure of active phase and mechanism of catalytic reaction

硫化钼基催化剂是加氢脱硫过程的常用催化剂,其活性相结构与加氢脱硫性能的关系一直是催化加氢领域研究的热点问题,该问题对开发更高活性和选择性的催化剂具有十分重要的意义。本文综述了近年来加氢脱硫催化剂的表征和理论计算方面的研究进展,对MoS_2、CoMoS和NiMoS的具体微观结构进行了分析,并对可能的加氢脱硫活性位以及噻吩在活性位上加氢脱硫的反应路径进行了探讨。

MoS2-based catalysts have been used as hydrotreating catalysts for decades. The relationship between the morphology of active phase and its catalysis ability is the key issue in this area because that is quite important to understand the mechanism during the improvement of the catalysts. This paper reviewed the new progresses of the researches about the structure of the active phase and the hydrodesulphurization mechanism of MoS2, CoMoS and NiMoS catalysts.