A Highly Active and Selective Manganese Oxide Promoted Cobalt-on-Silica Fischer-Tropsch Catalyst

作者：den Breejen Johan P; Frey Anne M; Yang Jia; Holmen Anders; van Schooneveld Matti M; de Groot Frank M F; Stephan Odile; Bitter Johannes H; de Jong Krijn P^*

来源：Topics in Catalysis, 2011, 54(13-15): 768-777.

DOI：10.1007/s11244-011-9703-0

• Fischer-Tropsch
• Cobalt on silica
• Manganese promotion
• NO calcination
• STEM-EELS
• CO adsorption
• Infrared Spectroscopy
• SSITKA

A highly active and selective manganese oxide-promoted silica-supported cobalt catalyst for the Fischer-Tropsch reaction is reported. Co/MnO/SiO2 catalysts were prepared via impregnation of a cobalt nitrate and manganese nitrate precursor, followed by drying and calcination in an NO/He flow. The catalysts were studied with STEM-EELS, infrared spectroscopy measurements of adsorbed CO and Steady-State Isotopic Transient Kinetic Analysis experiments. Based on those experiments, a relation between C5+-selectivity and surface-coverages of CHx-intermediates on cobalt was found.

• 出版日期2011-9