针对若干失活的W-Ni加氢催化剂，研究了其再生条件及再生催化剂的活性效果。利用TG、TPD、IR、XRD、TPR、TEM等技术考察了再生温度、升温速率、再生时间等因素对失活催化剂再生效果的影响。结果表明，对于W-Ni型催化剂，以2℃/min的速率升温至330℃，恒温2 h，再以1℃/min的速率升温至480℃，恒温2 h，可以使催化剂得到良好的再生效果，大部分积炭得以脱除，活性金属得以恢复，催化剂酸性和孔结构恢复较好。继续升高温度容易破坏催化剂的结构与酸性，活性金属也将发生聚集现象。

The regeneration conditions for several kinds of deactivated W-Ni catalysts for hydrogenation are studied and the activity effects of the concerning catalysts regenerated are investigated.was prepared under various conditions by ex-situ method.The regenerated catalysts are characterized by means of TG,TPD,IR,XRD,TPR and TEM techniques in order to investigate the effects of regeneration temperature,heating rate and regeneration time on the regeneration efficiency.Results show that the deactivated W-Ni catalysts can be regenerated with excellent efficiency under the following optimum conditions:the deactivated catalysts are heated to 330℃ by a rate of 2℃/min,maintained at the temperature for 2 hours,heated again till 480℃ at a rate of 1℃/min,maintained at 480℃ for 2 hours.After regeneration,most of coke and sulfur on the catalysts have been removed,active metals have recovered effectively,and the pore structure and the acid amount of the catalysts gets the maximum restoration at the same time.And the conclusion also indicates that active metals will sinter gradually and the acid amount will descend if the temperature exceeds 480℃.In summary,regeneration of W-Ni hydrogenation catalyst can get the optimum effect only under suitable conditions.

刘速(1985-),男,硕士,讲师,主要研究方向为分子筛催化剂的改性,liusu8513@163.com