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首页> 外文期刊>Journal of industrial and engineering chemistry >Pt-Sn-based catalyst's intensification using Al2O3-SAPO-34 as a support for propane dehydrogenation to propylene
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Pt-Sn-based catalyst's intensification using Al2O3-SAPO-34 as a support for propane dehydrogenation to propylene

机译：使用Al2O3-SAPO-34作为丙烷脱氢制丙烯的Pt-Sn基催化剂的强化

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The addition of A12O3 up to 20% (as cementing agent) in SAPO-34 support significantly integrates metal functions of Pt-Sn-based catalyst, ultimately improves catalytic performance for direct propane dehydrogenation to propylene. Superior propane conversion (initially above 40%) and propylene selectivity (around 95%) is obtained experimentally over Pt-Sn/Al2O3-SAPO-34. The results were found promising and compared with Pt-Sn/SAPO-34 under identical operating conditions. Better platinum dispersion and higher active platinum sites are characterized by TEM and hydrogen-chemisorption analysis. Moreover, the possible metal interactions with different supports were configured. Therefore, light alkane dehydrogenation to alkene was enhanced using surface modified support Al2O3-SAPO-34 for Pt-Sn-based catalysts.
机译：在SAPO-34载体中添加高达20％的Al2O3（作为胶结剂）可显着整合Pt-Sn基催化剂的金属功能，最终提高了将丙烷直接脱氢为丙烯的催化性能。与Pt-Sn / Al2O3-SAPO-34相比，通过实验获得了优异的丙烷转化率（最初高于40％）和丙烯选择性（约95％）。发现结果很有希望，并且在相同的操作条件下与Pt-Sn / SAPO-34进行了比较。通过TEM和氢化学吸附分析表征更好的铂分散性和更高的活性铂位点。而且，配置了与不同载体的可能的金属相互作用。因此，对于Pt-Sn基催化剂，使用表面改性的载体Al2O3-SAPO-34可增强轻质烷烃脱氢成烯烃的能力。

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