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An in situ reactivation study reveals the supreme stability of γ-alumina for the oxidative dehydrogenation of ethylbenzene to styrene†
Catalysis Science & Technology ( IF 5 ) Pub Date : 2018-06-22 00:00:00 , DOI: 10.1039/c8cy00748a
Ignacio Melián-Cabrera 1, 2, 3, 4, 5 , Valeriya Zarubina 1, 2, 3, 4, 5 , Christiaan Nederlof 6, 7, 8, 9, 10 , Freek Kapteijn 6, 7, 8, 9, 10 , Michiel Makkee 6, 7, 8, 9, 10
Affiliation  

Ethylbenzene oxidative dehydrogenation over γ-alumina under in situ conditions has revealed that the catalyst recovers fully the original conversion and selectivity under steady state conditions. In the transition state, the reactivated catalyst achieved the steady state conditions faster. This was supported by the physico-chemical characterisation that revealed pore widening due to crystallite sintering during the reactivation, which has a beneficial effect. The excellent stability after the reactivation recycle, as well as along the run, shows the great promise of this catalyst.

中文翻译:

一个在原地复活的研究揭示γ氧化铝乙苯氧化脱氢制苯乙烯的最高稳定性

在原位条件下 γ-氧化铝上的乙苯氧化脱氢表明,催化剂在稳态条件下可完全恢复原始转化率和选择性。在过渡态下,再活化的催化剂更快地达到稳态条件。物理化学特征支持了这一点,该化学特征揭示了在再活化过程中由于微晶烧结引起的孔变宽,这具有有益的作用。再活化循环后以及运行过程中优异的稳定性表明了该催化剂的巨大前景。
更新日期:2018-06-22
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