Catalytic behavior in skeletal isomerization of linear butenes and acidic properties of ani-Pr2NH-templated sapo-11 molecular sieve |
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| Authors: | Huiping Tian Li Shi Jianbing Yuan M. E. Bekheet Chenglie Li |
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| Affiliation: | (1) Division 14, Research Institute of Petroleum Processing, 18 Xueyuan Rd, PO Box 914-14, 100083 Beijing, P.R. China;(2) Petroleum Processing Research Center, East China University of Science and Technology, 130 Meilong Rd., 200237 Shanghai, P.R. China |
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| Abstract: | SAPO-11 samples were synthesized withi-Pr2NH as a novel template, and applied in catalytic skeletal isomerization of linear butenes. More linear butenes were converted with increasing Si content in SAPO-11 samples, while theiso-butene selectivity was proportional to the Si content only in the lower reaction temperature region. The maximum yield ofiso-butene was achieved around 763 K. The acidic properties of SAPO-11 samples were studied by NH3-TPD and IR spectroscopy. The strong acidity was due to the formation of Si domains in the framework lattice. |
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| Keywords: | SAPO-11 i-Pr2NH template skeletal isomerization acidity |
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