Influence of various catalyst factors on time-on-stream activity of Ga/H-ZSM-5 in propane aromatization

摘要

Influence of various zeolite catalyst factors such as,Si/Al ratio (35-132),degree of H~+ exchange (2-98%),calcination temperature(600-800deg C) and Ga-loading on time-on-stream activity/selectivity of Ga/H-ZSM-5 in the propane aromatiza-tion has been investigated.The time-on-stream activity in the propane-to-aromatics conversion is found to be influenced strongly by the above zeolitic factors.The Ga/H-ZSM-5 zeolite catalysts undergo quite rapid deactivatioj due ot coking.