摘要:
A zeolite of improved stability for use in acid-catalyzed reactions is prepared by mildly presteaming the catalyst under controlled conditions of temperature, time, and steam partial pressure. The resulting catalyst retains nearly the same activity as that of a fresh unsteamed catalyst.
摘要:
A process is disclosed for the dealkylation of durene resulting from a methanol to gasoline conversion by contacting a durene-containing fraction with zeolite ZSM-12 at elevated temperatures and pressures.