Fischer–Tropsch synthesis on cobalt catalysts with alkaline earth metal additives

Abstract

The promotion supported cobalt catalysts for the synthesis of hydrocarbons from CO and H₂ with the alkaline earth metals Mg, Ca, and Ba was studied. The introduction of a promoter leads to an increase in selectivity for target higher hydrocarbons, a decrease in methane formation, and an increase in the olefin content of the products. The magnitude of these effects correlates with the electron-donor properties of a promoter, and it increases in the order Mg < Ca < Ba. At the same time, the index of hydrocarbon chain growth of the synthesized alkanes decreases in this case.