Unravelling Molecular Composition of Products from Cobalt Catalysed Fischer-Tropsch Reaction
by Comprehensive Gas Chromatography: Methodology and Application

F. Bertoncini; M. C. Marion; N. Brodusch; S. Esnault

Unravelling Molecular Composition of Products from Cobalt Catalysed Fischer-Tropsch Reaction by Comprehensive Gas Chromatography: Methodology and Application

F. Bertoncini ^{1, *} M. C. Marion ¹ N. Brodusch ¹ S. Esnault ¹

* Corresponding author

1 IFPEN - IFP Energies nouvelles

F. Bertoncini ¹ AuthorId : 1404839
Correspondent author

M. C. Marion ¹ AuthorId : 11391035
Author

N. Brodusch ¹ AuthorId : 11391036
Author

S. Esnault ¹ AuthorId : 11391037
Author

1 IFPEN - IFP Energies nouvelles (1-4 avenue de Bois Préau 92500 Rueil-Malmaison - France) StructId : 300006

IFPEN - IFP Energies nouvelles (Rond-point de l'échangeur de Solaize, BP 3, 69360 Solaize - France) StructId : 534301

Abstract : New analytical approaches combining different types of gas chromatography techniques such as low resolution, high resolution and two-dimensional gas chromatography were carried out to provide enhanced molecular characterization of Fischer-Tropsch (FT) products. In particular, a detailed composition of olefin and oxygenates by-products was achieved thanks to magnified resolution associated with the high peak capacity provided by GC×GC. Such a detailed description of the whole FT products distribution brings additional information which improve the Fischer-Tropsch reaction knowledge. Thus, we have shown that all the three products family (paraffin, olefin and oxygenates) present their own Anderson Schulz Flory (ASF) distribution. Apart from methane and ethylene which present their own particularity, the Fischer-Tropsch selectivity can be described by three chain growth coefficients relative to each products family. These results allow new understanding of the reaction mechanism. An hypothesis is proposed.

Document type :

Journal articles

Domain :

Physics [physics]

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Unravelling Molecular Composition of Products from Cobalt Catalysed Fischer-Tropsch Reaction by Comprehensive Gas Chromatography: Methodology and Application

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Unravelling Molecular Composition of Products from Cobalt Catalysed Fischer-Tropsch Reaction by Comprehensive Gas Chromatography: Methodology and Application

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