Recent advances in understanding the Fischer–Tropsch synthesis (FTS) reaction

Because of the world energy crisis, there has been renewed interest in the Synthesis (Fischer–Tropsch synthesis (FTS)) reaction over the last few years. In spite of the fact that it has been studied for over 80 years an adequate description of its kinetics still seems to escape us. There are still significant experimental results that do not appear to fit in with any current theories. In this review we will look at some new results covering a wide range of areas but will focus on some that may help to throw light on the phenomena occurring during reaction. This will include the overall reaction and some selectivity issues particularly the olefin to paraffin ratios of the lower hydrocarbons.

► Liquid is formed in an FT reactor but its presence has not been adequately addressed. ► Phase equilibria have not been considered in reaction kinetic modelling. ► The presence of water in the liquid phase and its effect on reaction is not clear. ► The likelihood of equilibria between the lower hydrocarbons has not been explored. ► Even quite simple phenomena when combined can lead to complex behaviour.