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Fischer-Tropsch Synthesis: an alternative technology for producing vehicle fuel


Fischer Tropsch catalysis has been the subject of research as an alternative for fuel production for several years. With reserves of hydrocarbons dwelling, British Petroleum, University College London and Finden Ltd have gained an insight into this technology thanks to real-time experiments on several beamlines at the ESRF.

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BP, University College London, Finden Ltd.


The petrochemical industry produces vast quantities of hydrocarbons annually, and any improvement in catalytic efficiency can bring huge economic and environmental benefits. The Fischer-Tropsch Synthesis (FTS) process is likely to become increasingly important as an alternative technology for fuel production. It converts synthesis gas, a mixture of carbon monoxide and hydrogen, into useful hydrocarbons (like diesel or kerosene); it is one of the more viable and sustainable routes to replace gasoline or diesel fuel produced in oil refining and results in ultra-clean fuels. It is already used by a few petrochemical companies, but very few studies regarding the preparation and evolution of catalytically active species on a real ‘structured’ catalyst exist; this information is key for understanding the reasons behind variable catalyst performance.


3 mm diameter/length Co/-Al2O3 pellets, typically used in a pilot plant reactor.


At the ESRF, researchers investigated the catalyst pellets in action using the recently developed techniques of scattering-computed tomography on beamlines ID11, ID15 and ID31. This technique allowed the team to study a real catalyst sample, thanks to the unique high energy X-rays of the ESRF and state-of-the-art 2D area detectors, which enabled measurements of the catalysts under real working conditions. X-ray diffraction computed tomography revealed the different phases in the catalyst as it was reduced from cobalt oxide to cobalt metal nanoparticles, which are the active phase for the FTS reaction. The results also showed the location of the catalyst action and that the number of catalytically-active species are removed.

This technique also allows the scientists to tweak the composition of the catalyst and see how its efficiency changes. These results provide important and detailed insight into the real-time behaviour of structured catalysts under reaction conditions providing much needed insight into how to design a catalyst with better performance.


FTS is already being used by petrochemical companies in South East Asia and South Africa and is gradually being rolled out across the world. With this research, scientists have taken a decisive step towards a better designed catalyst, making FTS a serious competitor for petrol. 

Senecal, P. ,et al, ACS Catalysis, Just accepted manuscript, 31 Jan 2017.