The effects of promoters of K and Zr on the mesoporous carbon supported cobalt catalysts for Fischer-Tropsch synthesis

► 15%Co/MC was significantly more active than 15%Co/AC for Fischer-Tropsch synthesis. ► Addition of K and Zr significantly affected Fischer-Tropsch activity of 15%Co/MC. ► Addition of K and Zr significantly changed the acidity and basicity of 15%Co/MC. ► Surface acidity and basicity affected the adsorption of CO and H2 on supported Co. ► Relative adsorption strengths of CO and H2 on Co affected Fischer-Tropsch activity.