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Catalytic Hydrogenation of Octanoic Acid in the Gaseous Phase on Ni Catalysts: The Effect of Support Species and Structure
Industrial & Engineering Chemistry Research ( IF 4.2 ) Pub Date : 2018-11-13 , DOI: 10.1021/acs.iecr.8b04141
Hao Chen 1 , Wenjie Bai 1 , Yulian He 2 , Lisa D. Pfefferle 2 , Suitao Qi 1 , Yulong Wu 3, 4
Affiliation  

Octanoic acid was chosen as the biomass model for studying the catalytic hydrogenation reaction. The effect of support species and structure on catalytic activity was studied in this work. Ni nanoparticles supported on metal oxide supports (ZrO2, SiO2, Al2O3, and TiO2) were characterized and examined for their catalytic properties. Ni/ZrO2 exhibited high catalytic activity with 68.7% octanoic acid conversion owing to favorable hydrogen dissociation and spillover on Ni/ZrO2. Upon further study, Ni/ZrO2 with a three-dimensional ordered microporous structure (3DOM-ZrO2) and a hollow spherical structure (HS-ZrO2) has been prepared for octanoic acid catalytic hydrogenation. Compared to traditional structures, a catalyst with the 3DOM structure is beneficial for efficient contact of reactants and catalysts in heterogeneous catalysis. The reactant fluids efficiently contacted with the catalytic active center in the 3DOM structure catalyst promoting the catalytic activity, which was simulated by computational fluid dynamics (CFD).

中文翻译:

Ni催化剂在气相中催化辛酸的加氢反应:载体种类和结构的影响

选择辛酸作为研究催化加氢反应的生物质模型。在这项工作中研究了载体种类和结构对催化活性的影响。表征了负载在金属氧化物载体(ZrO 2,SiO 2,Al 2 O 3和TiO 2)上的Ni纳米颗粒,并研究了它们的催化性能。的Ni /的ZrO 2表现出高的催化活性与68.7%辛酸转化由于有利氢解离和溢出对Ni /的ZrO 2。经进一步研究,Ni / ZrO 2具有三维有序微孔结构(3DOM-ZrO 2)和中空球形结构(HS-ZrO 2)已制备用于辛酸催化加氢。与传统结构相比,具有3DOM结构的催化剂有利于多相催化中反应物和催化剂的有效接触。反应流体与3DOM结构催化剂中的催化活性中心有效接触,从而促进了催化活性,这是通过计算流体动力学(CFD)进行模拟的。
更新日期:2018-11-14
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