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Comparison of fibrous catalysts and monolithic catalysts for catalytic methane partial oxidation
Renewable Energy ( IF 9.0 ) Pub Date : 2019-08-01 , DOI: 10.1016/j.renene.2019.02.027
Yuyao Ma , Yuxia Ma , Zhibo Zhao , Xun Hu , Zhengmao Ye , Jianfeng Yao , C.E. Buckley , Dehua Dong

Abstract Fibrous Ni/Al2O3 catalysts prepared by one-step electrospinning have been recently developed for methane reforming. The purpose of this study is to investigate the merits of the fibrous catalysts via comparing with conventional monolithic Ni/Al2O3 catalysts prepared by impregnation. The fibrous catalysts exhibited the smaller and more uniform Ni nanoparticles, the stronger catalyst/support interaction and the higher catalyst loadings compared with supported spherical catalysts. In addition, fibrous catalysts demonstrate the faster mass transfer and the higher resistance to carbon deposition during methane partial oxidation, resulting in the higher syngas yields. Therefore, the fibrous catalysts have the advantages of the higher catalyst loading with the higher dispersion and the faster mass transfer for achieving the higher catalytic reaction rates over conventional impregnated catalysts.

中文翻译:

用于催化甲烷部分氧化的纤维催化剂和整体催化剂的比较

摘要 通过一步静电纺丝制备的纤维状 Ni/Al2O3 催化剂最近被开发用于甲烷重整。本研究的目的是通过与传统的浸渍制备的整体 Ni/Al2O3 催化剂进行比较来研究纤维状催化剂的优点。与负载型球形催化剂相比,纤维状催化剂表现出更小、更均匀的 Ni 纳米颗粒、更强的催化剂/载体相互作用和更高的催化剂负载量。此外,纤维状催化剂在甲烷部分氧化过程中表现出更快的传质和更高的抗碳沉积能力,从而导致更高的合成气产率。所以,
更新日期:2019-08-01
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