Good correlation was observed between catalyst lifetime and mesoporosity.
There are a number of factors that control product selectivity and catalyst lifetime in acid-catalysed reactions using zeolites.
The operating conditions over the whole catalyst lifetime and the reactor configuration are simultaneously optimized.
In this process, the catalyst lifetime is much larger than the residence time of reactants.
The optimization methods have enhanced additional yield throughout 4 years of catalyst lifetime, respectively.
In this work the potential of hydrogen donors to improve upgrading and enhance catalyst lifetime was considered.
The enhanced catalyst lifetime could be attributed to the facilitated diffusion of coke precursors out of the zeolite structure.
Comparative tests using commercial conditions showed a 30% increase in catalyst lifetime when compared to catalysts previously available.
The catalyst lifetime was maintained for 790 min at optimized experimental condition.
Subsequent reactor scale-up proceeded based on laboratory scale measurements of the reaction kinetics and catalyst lifetime.
Fundamental understanding of the deactivation mechanisms at play during FTS is key to extending catalyst lifetime.
