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首页> 外文期刊>Catalysis science & technology >Revealing fundamentals affecting activity and product selectivity in non-oxidative propane dehydrogenation over bare Al2O3
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Revealing fundamentals affecting activity and product selectivity in non-oxidative propane dehydrogenation over bare Al2O3

机译：揭示影响活动和基本面产品在non-oxidative丙烷选择性脱氢在光秃秃的氧化铝

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摘要

A detailed study was carried out to elucidate the factors affecting the activity and, particularly, selectivity of bare Al2O3 in the non-oxidative propane dehydrogenation (PDH) to propene under industrially relevant conditions. A series of samples were synthesized by a precipitation method upon varying the ratio of OH-/Al3+ in the solution. This ratio was established to affect the ability of Al2O3 to form aluminium cations with lower coordination (Al-cus) than regular surface Al3+ sites. Such defective sites show higher activity for propene formation and lower ability for coke formation. In addition to the preparation method, the kind of reducing agent for Al2O3 is decisive for creation of the desired defects, with CO showing higher reactivity owing to its ability to react with surface OH groups.
机译：一个详细的学习进行了阐明影响因素的活动,特别是选择性的光non-oxidative氧化铝丙烷脱氢(PDH)下丙烯工业相关的条件。样本合成沉淀方法在不同的比例哦——/与解决方案。氧化铝形成铝阳离子的能力较低的协调(行业)比一般表面与网站。提高丙烯的形成和较低的活动可口可乐能力的形成。制备方法,还原剂的种类为创建所需的氧化铝是决定性的缺陷,公司显示更高的反应性由于其与表面羟基反应的能力。

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