Al2O3 microrods supported Pd catalysts for semi-hydrogenation of acetylene: Acidic properties tuned reaction kinetics behaviors

•Pd catalysts supported on Al2O3 microrods with different acidic properties.•Acidic properties affected kinetics of Pd-catalyzed acetylene semi-hydrogenation.•ΔS* as the descriptor for acidic-property dependent C2H2 hydrogenation kinetics. The acidic properties of the support show remarkable effects...

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Veröffentlicht in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2022-10, Vol.445, p.136681, Article 136681
Hauptverfasser: Yang, Zhirong, Li, Yurou, Cao, Yueqiang, Zhao, Xingqiang, Chen, Wenyao, Zhang, Jing, Qian, Gang, Peng, Chong, Gong, Xueqing, Duan, Xuezhi
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Sprache:eng
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Zusammenfassung:•Pd catalysts supported on Al2O3 microrods with different acidic properties.•Acidic properties affected kinetics of Pd-catalyzed acetylene semi-hydrogenation.•ΔS* as the descriptor for acidic-property dependent C2H2 hydrogenation kinetics. The acidic properties of the support show remarkable effects on Pd-catalyzed reactions including the semi-hydrogenation of acetylene. Herein, Al2O3 microrods with distinct acidic properties are synthesized as the supports for Pd catalysts to address the acidic properties dominated kinetics behavior of acetylene hydrogenation. The acidic properties of Al2O3 microrods decrease with the calcination temperature, in the order of Al2O3-1400 
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2022.136681