Synthesis of NiAlPO4-5 and activity in hydrodesulfurization
Feng bing*, Sun Huayang, Huang Lingxiang, Wang Yandan, Sun Houxiang, Zhang Deqi, Zhang Zhongguang, Zhang Xinyue, Guo Qiaoxia, Shen Baojian*
State Key Laboratory of Heavy Oil Processing,Key Laboratory of Catalysis of CNPC,College of Chemical Engineering,China University of Petroleum,Beijing 102249,China
Abstract
NiAlPO4-5 zeolites with various NiO contents were synthesized by hydrothermal synthesis method.FT-IR, UV-Vis DRS and H2-TPR characterization showed that metal Ni existed in framework and non-framework in NiAlPO4-5 zeolite. Introduction of Ni did not change the typical crystal structures of AlPO4-5 zeolite.Surface area of NiAlPO4-5 zeolites was lager, crystal size was bigger and acid amount was more than AlPO4-5.When applied in hydrodesulfurization of dibenzolthiophene, NiAlPO4-5 showed higher activity than AlPO4-5 and Ni/AlPO4-5 prepared by incient wetness impregnation. W/A+NiAlPO4-5 showed higher activity in hydrodesulfurization of dibenzolthiophene than traditional WO3supported Al2O3hydrotreating catalysts (W/A).
图10 不同Ni含量NiAlPO4-5分子筛的二苯并噻吩加氢脱硫评价 1.AlPO4-5; 2.NiAlPO4-5(1); 3.NiAlPO4-5(2); 4.Ni/AlPO4-5Figure 10 Activities ofNiAlPO4-5 zeolites with different Ni content in hydrodesulfurization of dibenzolthiophene
图11 负载WO3后催化剂的二苯并噻吩加氢脱硫评价 1.W/A+AlPO4-5; 2.W/A+NiAlPO4-5(1); 3.W/A+NiAlPO4-5(2); 4.W/AFigure 11 Activities of WO3catalysts in hydrodesulfurization of dibenzolthiophene
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