CATALYTIC CONVERSION METHOD FOR IMPROVING PRODUCT DISTRIBUTION

摘要

A catalytic conversion method for improving product distribution, characterized in that high-grade raw oil is contacted with a thermally regenerated catalyst having a relatively low activity in a reactor and undergoes cracking reactions. The products of the reactions are separated from the spent catalyst and are sent to a separation system, and the spent catalyst is subjected to steam stripping and regeneration for recycling. The content of isobutene in the liquefied gas produced by the method increases by more than 30%, and the content of olefins in the petroleum composition can increase to more than 30% by weight. Product distribution is optimized and yields of dry gas and coke are reduced, and thus petroleum resources are utilized to their fullest extent.