Enhanced ethylene productivity by the promotion of lattice oxygen in NiNbO/CexZr1 − xO2 composite for oxidative dehydrogenation of ethane
Enhanced ethylene productivity by the promotion of lattice oxygen in NiNbO/CexZr1 − xO2 composite for oxidative dehydrogenation of ethane
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DOI：
10.1016/j.catcom.2017.03.002
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发表时间：
2017-05
影响因子：
3.7
通讯作者：
Minzae Lee;Yang Sik Yun;Jong-Chan Sung;Joongwon Lee;Y. Seo;I. Song;J. Yi
中科院分区：
文献类型：
--
作者：
Minzae Lee;Yang Sik Yun;Jong-Chan Sung;Joongwon Lee;Y. Seo;I. Song;J. Yi
Nisingle bond Nb single bond O/CexZr 1 − xO2催化剂是为提高乙烷氧化脱氢（ODHE）反应的乙烯产率而开发的。与仅使用Nisingle键Nb单键O的常规方式相比，在Nisingle键Nb单键O活性催化剂中引入CexZr1-xO2有助于在相对高的反应温度（450 ° C）下抑制副产物（CO、CO2和CH4）的形成。与传统的Nisingle键Nb单键O催化剂（1.5 μ mol gactive cat − 1s − 1）相比，提高的反应温度也导致乙烷转化率的提高（~55%）和随后乙烯产量的增加（6.3 μ mol gactive cat − 1s − 1）。并讨论了CexZr 1 − xO2添加剂的促进作用。
Nisingle bondNbsingle bondO/CexZr1 − xO2catalysts are developed for the enhancement in the ethylene productivity via oxidative dehydrogenation of ethane (ODHE) reaction. Compared with the conventional manner of using Nisingle bondNbsingle bondO alone, the introduction of CexZr1 − xO2to the Nisingle bondNbsingle bondO active catalyst contributes on suppressing the formation of byproducts (CO, CO2, and CH4) at relatively high reaction temperature (450 °C). The increased reaction temperature also leads to an enhancement of ethane conversion (~ 55%) and subsequent increase in the production of ethylene (6.3 μmol gactive cat− 1s− 1), compared to that of conventional Nisingle bondNbsingle bondO catalyst (1.5 μmol gactive cat− 1s− 1). The promotion effect of CexZr1 − xO2additive is also discussed.