Synthesis and characterization of SAPO-11 molecular sieves from alcoholic systems |
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| Authors: | Zheming Wang Zhijian Tian Guodong Wen Fei Teng Yunpeng Xu Zhusheng Xu and Liwu Lin |
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| Institution: | (1) Laboratory of Natural Gas Utilization and Applied Catalysis, Chinese Academy of Sciences, P.O. Box 110, Dalian 116023, P.R. China;(2) Laboratory of Natural Gas Utilization and Applied Catalysis, Chinese Academy of Sciences, P.O. Box 110, Dalian 116023, P.R. China;(3) Laboratory of Natural Gas Utilization and Applied Catalysis, Chinese Academy of Sciences, P.O. Box 110, Dalian 116023, P.R. China;(4) Laboratory of Natural Gas Utilization and Applied Catalysis, Chinese Academy of Sciences, P.O. Box 110, Dalian 116023, P.R. China;(5) Laboratory of Natural Gas Utilization and Applied Catalysis, Chinese Academy of Sciences, P.O. Box 110, Dalian 116023, P.R. China;(6) Laboratory of Natural Gas Utilization and Applied Catalysis, Chinese Academy of Sciences, P.O. Box 110, Dalian 116023, P.R. China;(7) State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, P.O. Box 110, Dalian 116023, P.R. China |
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| Abstract: | Summary SAPO-11 molecular sieves were synthesized from aqueous and nonaqueous systems by using different alcoholic solvents and their
physicochemical properties were compared. The SAPO-11 samples synthesized from alcoholic systems had larger external surface
area, higher Si contents and higher acidity than those of the sample synthesized from the aqueous system. Thereby, loaded
with 0.5 wt.%Pt, the resulting Pt/SAPO-11 catalysts synthesized from alcoholic systems exhibited higher catalytic activities
and selectivity for n-dodecane hydyroisomerization. Among the catalysts synthesized from alcoholic systems, the Pt/SAPO-11
catalyst synthesized from polybasic alcohol systems possessed the highest catalytic activities. |
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| Keywords: | hydroisomerization Aqueous system alcoholic system Pt/SAPO-11 |
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