Relationship between zeolite structure and hydrogen-transfer reactions in naphthenes and paraffins cracking

摘要: Summary The limitation of hydrogen-transfer reaction in FCC units, when zeolitic additives are used, is desired to maximize the olefins production and limit aromatics content gasoline. In this work, influence zeolite structure on H-transfer reactions which occur during cracking n-hexane a light gasoline cut (70-140°C) from hydrocracking, composed mixture naphthenes paraffins, was studied. results obtained show that there link between importance paraffins cracking. Such appear as being dominant using Y zeolite, minimized MFl zeolite. Beta Mordenite zeolites intermediate less important case comparison with Si/Al ratio also discussed.