萘、四氢萘和十氢萘的加氢或脱氢反应与催化剂的研究进展

Progresses in Hydrogenation or Dehydrogenation of Naphthalene,Tetralin and Decalin,and the Catalysts

概述了萘、四氢萘和十氢萘的加氢或脱氢反应的机理和动力学,这3种物质在临氢条件下发生的反应主要包括加氢饱和、加氢开环和积碳结焦等。详细论述了萘或四氢萘加氢催化剂(包括贵金属催化剂和非贵金属催化剂两类)的制备方法及其性能:贵金属催化剂的加氢活性高,但成本高、抗中毒能力差、易失活;非贵金属催化剂的成本低、失活速率慢,但加氢性能低。同时介绍了十氢萘和四氢萘在储氢材料方面的应用,并对其发展前景进行了展望。

Mechanism and kinetics for the Hydrogenation or dehydrogenation of naphthalene,tetralin and decalin were summarized. The reactions of the three compounds mainly contain hydrogenation saturation,hydrogenation ring-opening and carbon deposition in the presence of hydrogen. The hydrogenation catalysts of naphthalene and tetralin were divided into noble metal catalysts and non-noble metal catalysts. The preparation methods and performances of the catalysts were discussed in detail. Although the activity of the noble metal catalysts is high in the hydrogenation,they had the disadvantages of high cost,poor poison-tolerance and easy inactivation. The non-noble metal catalysts had lower cost and slower deactivation but lower activity in the hydrogenation than the noble metal catalysts. In addition,the dehydrogenation of decalin and tetralin to naphthalene shows a good development prospect in their application as hydrogen storage materials.