Effect of loading on the Ni_2P/Al_2O_3 catalysts for the hydrotreating reactions  

作　　者：Junen Wang Shaozhong Li Jun Xu Hui Chen Jiangyu Yuan Jianyi Shen 

机构地区：[1]Laboratory of Mesoscopic Chemistry,School of Chemistry and Chemical Engineering,Nanjing University [2]College of Chemistry and Materials Science,Huaibei Normal University

出　　处：《Journal of Energy Chemistry》2015年第4期441-447,共7页能源化学（英文版）

基　　金：supports from NSFC (21273105);MSTC (2013AA031703);NSFJC (BK20140596)

摘　　要：The 80%Ni2P/Al2O3 catalysts were prepared by the phosphidation of corresponding 80%Ni/Al2O3 with triphenylphosphine in liquid phase and compared with the 60%Ni2P/Al2O3 for hydrotreating reactions. Both the60%Ni2P/Al2O3 and 80%Ni2P/Al2O3 in comparison exhibited the small and uniform Ni2 P particles（6.3 and8.4 nm,respectively）,high CO uptakes（305 and 345 μmol/g,respectively） and thus high activities for the hydrotreating reactions. After the hydrotreating reactions,the small and uniform Ni2 P particles were remained,although the CO uptakes on the used 60%Ni2P/Al2O3 and 80%Ni2P/Al2O3 were greatly decreased（to 68 and95 μmol/g,respectively） due to the incorporation of S into the Ni2 P surfaces. The 80%Ni2P/Al2O3 was found to be significantly more active than the 60%Ni2P/Al2O3 due to that the 80%Ni2P/Al2O3 possessed more,and more active Ni2 P sites than the 60%Ni2P/Al2O3,probably due to the less S incorporated in the 80%Ni2P/Al2O3 than in the 60%Ni2P/Al2O3 during the hydrotreating reactions.The 80%Ni2P/Al2O3 catalysts were prepared by the phosphidation of corresponding 80%Ni/Al2O3 with triphenylphosphine in liquid phase and compared with the 60%Ni2P/Al2O3 for hydrotreating reactions. Both the60%Ni2P/Al2O3 and 80%Ni2P/Al2O3 in comparison exhibited the small and uniform Ni2 P particles（6.3 and8.4 nm,respectively）,high CO uptakes（305 and 345 μmol/g,respectively） and thus high activities for the hydrotreating reactions. After the hydrotreating reactions,the small and uniform Ni2 P particles were remained,although the CO uptakes on the used 60%Ni2P/Al2O3 and 80%Ni2P/Al2O3 were greatly decreased（to 68 and95 μmol/g,respectively） due to the incorporation of S into the Ni2 P surfaces. The 80%Ni2P/Al2O3 was found to be significantly more active than the 60%Ni2P/Al2O3 due to that the 80%Ni2P/Al2O3 possessed more,and more active Ni2 P sites than the 60%Ni2P/Al2O3,probably due to the less S incorporated in the 80%Ni2P/Al2O3 than in the 60%Ni2P/Al2O3 during the hydrotreating reactions.

关 键 词：Supported Ni2P Liquid phase phosphidation TRIPHENYLPHOSPHINE Microcalorimetric adsorption of CO Hydrotreating reactions 

分 类 号：TQ426[化学工程]