To study the poisoning of Fischer-Tropsch (FT) catalysts during synthesis is a demanding task.  Fixed bed reactors have been utilized; however, for this type of reactor the top of the catalyst (or preheater solid, if used) may act as a getter for this poison.  Slurry phase reactors may be utilized, but here pore filling by the heavy FT products needs to be taken into account.  In general, the impact of the potential catalyst poison may be defined by both the reactor used and the reaction conditions.  Thus, the following results apply for slurry phase operation of cobalt catalyst.  The use of the continuous stirred-tank reactor (CSTR) means that all catalyst particles are subjected to the same average catalyst poison concentration and to the same average partial pressure of reactants and products.  However, the size of the catalyst particle may impact the results and this was not fully appreciated at the start of this work.  Results from laboratory poisoning studies will be described.

Poisoning of cobalt catalyst used for Fischer-Tropsch synthesis

243rd National Meeting (2012)

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