NEW CATALYTIC SILICOALUMINOPHOSPHATES HAVING AN AEL STRUCTURE, AND THEIR USE IN CATALYTIC CRACKING

摘要

Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions, a method for their preparation and their use as catalysts for the catalytic cracking of hydrocarbon feedstocks. More particularly, the new SAPOs have a high silica:alumina ratio, and are prepared from microemulsions containing surfactants.