The Formation of 2,6-Lutidine from Acetone, Methanol and Ammonia Over Zeolite ZSM-5

Deactivating effect of coke and basic nitrogen compounds during the methylcyclohexane transformation over H-MFI zeolite

“…Studies show that for this crystallite size (1 m) the relative amount of external sites is inferior than the amount correspondent to the observed saturation value in the tested H-MFI zeolite (710 mol g −1 ) [36]. In addition, a research work shown that 2,6-dimethylpyridine could be formed and diffused in the MFI structure pore system at 450 • C [37]. This means that all poison molecules must enter, to some extent, into the zeolite crystallites.…”