Effect of Particle Size and Coke Formation on <i>n</i>‐Octane Dehydrogenation

Abstract The effect of particle size as well coke formation on conversion intermediate chain length paraffins (C 6 –C 9 ) to the corresponding olefins was investigated a promoted Pt catalyst with model substance n ‐octane. Increasing leads pore diffusion limitations and thus reduction activity for paraffin octene selectivity caused by more pronounced consecutive products (aromatics, octadienes). Both effects are adequately predicted developed kinetic model. dehydrogenation declines content coke, but lesser extent than rate formation, which is beneficial regarding lifetime. initial fully recovered mild burn‐off ( T &lt; 470 °C).