Influence of CaO on Naphthalene Conversion in Nickel-Based Catalyst
LI Zeng-xi~1,JIAO Ming-shu~(2,3),DUAN Hua-chao~1,WEN Xue-bing~1,LIU Yuan~1 (1.School of Chemical Engineering, Tianjin University, Tianjin 300072, China; 2.Graduate School of Chinese Academic Science, Beijing 100039, China; 3.Oil Gas Exploration Development Technology Research Center, Dagang Oilfield Company CNPC, Tianjin 300280, China)
(2,3),DUAN Hua-chao~1,WEN Xue-bing~1,LIU Yuan~1 (1.School of Chemical Engineering, Tianjin University, Tianjin 300072, China; 2.Graduate School of Chinese Academic Science, Beijing 100039, China; 3.Oil Gas Exploration Development Technology Research Center, Dagang Oilfield Company CNPC, Tianjin 300280, China
Abstract：
The catalysts of Ni/Al_2O_3 and Ni-Ca/Al_2O_3 were prepared respectively by impregnation and co-impregnation. The effect of CaO incorporation on the conversion of naphthalene, yields and selectivities of H_2,CO, had been investigated. The difference of the ratio of H_2/CO, the carbon deposit and the amount of the organic by-products between the catalysts Ni-Ca/Al_2O_3 and Ni/Al_2O_3 had been compared. It had been confirmed that adding the CaO not only improve the conversion of naphthalene and the yields of H_2, CO, but also increase the selectivities of H_2,CO_2, nevertheless decrease the selectivity of CO. It is also found that the catalyst with CaO can improve the ratio of H_2/CO and decrease the carbon deposit, but do not affect the sort of the by-products and the content of the benzene.
LI Zeng-xi~1,JIAO Ming-shu~.Influence of CaO on Naphthalene Conversion in Nickel-Based Catalyst[J]. Chemcial Industry and Engineering, 2004,21(4): 239-243
2004, Vol. 21 
