Abstract: With modified Y molecular sieve and alumina as supports,Ni-W as active component,the catalysts are prepared by the incipient wetness impregnation method,and then thermally treated at different temperatures.The influence of thermal treatment conditions on the performance of the catalysts for hydrocracking are investigated by XPS,HRTEM,EDS analysis and other characterization methods.The results show that the active components in the catalysts get the maximum vulcanization degree,and distribute uniformly on the surface of the support when the catalyst has been thermally treated at 500℃.At the same time,WS2 lamellar crystals in the catalyst has higher layer number and shorter average length,and generates more hydrogenation active sites.It is revealed that the catalyst that has been thermally treated at 500℃ delivers the best performance for hydrocracking.
唐兆吉, 杜艳泽, 王继锋, 陈阳. 不同热处理条件对加氢裂化催化剂性能的影响[J]. 现代化工, 2022, 42(3): 138-143.
TANG Zhao-ji, DU Yan-ze, WANG Ji-feng, CHEN Yang. Effect of different heat treatment conditions on performance of hydrocracking catalysts. Modern Chemical Industry, 2022, 42(3): 138-143.
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