Correlation between Hydrocarbon Product Distribution and Solvent Composition in the Fischer鈥揟ropsch Synthesis Catalyzed by Colloidal Cobalt Nanoparticles

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• 作者：Jorge A. Delgado ; Carmen Claver ; Sergio Castill贸n ; Daniel Curulla-Ferr茅 ; Cyril Godard
• 刊名：ACS Catalysis
• 出版年：2015
• 出版时间：August 7, 2015
• 年：2015
• 卷：5
• 期：8
• 页码：4568-4578
• 全文大小：582K
• ISSN：2155-5435

文摘

Colloidal cobalt nanoparticles with well-defined particle size (ca. 2.7 nm) were synthesized, characterized, and tested in Fischer鈥揟ropsch synthesis (FTS) using water and binary mixtures as solvent. The catalytic results revealed that activity and selectivity strongly depend on the nature and composition of the solvent mixture: the tests in pure water produced light hydrocarbons (C₂鈥揅₄), while the addition of organic cosolvents increased the activity and shifted the selectivity to higher hydrocarbons (C₁₃鈥揅₃₀). The observed variations in the activity and selectivity were correlated to syngas solubility in the medium used for catalysis. Under the tested conditions, ethanol/water (93/7 v/v) appeared to be the optimum binary solvent in terms of FT activity.