Ruthenium-Catalyzed Fischer-Tropsch Synthesis Methane and Polymethylenes

Ruthenium-Catalyzed Fischer-Tropsch Synthesis Methane and Polymethylenes 

The Fischer-Tropsch synthesis is the reductive oligomerization of carbon monoxide over heterogeneous catalysts (Eq. 11.1) [1, 5-7]. 

This reaction produces paraffins, olefins, and oxygenates such as alcohols, and iron, cobalt, nickel, thorium, and mthenium are known to be active catalysts. The chain length and products depend on the metal and reaction conditions. 

Methane is formed over nickel and ruthenium catalysts, especially at low pressure (up to 10 atm) and high temperature (220-340 °C). Nickel and cobalt catalysts yield paraffins and olefins at milder temperatures ( 200 °C) and a pressure of 1-10 atm. Over iron catalysts, olefins, paraffins and small amounts of alcohols are formed at medium pressure (10-100 atm) and a high temperature of 210-340 °C. Ruthenium 

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