Silicoaluminophosphates having AEL structure, a method for their preparation and their use as catalysts for the hydroprocessing of hydrocarbon feedstocks

摘要

Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions, a method for their preparation and their use as catalysts for the hydroprocessing of hydrocarbon feedstocks. More particularly, the new SAPOs have a high silica:alumina ratio, and may be prepared from single phase synthesis solutions or from microemulsions containing surfactants.