关键词: 催化裂化 , 干气 , 乙烯 , 芳烃

Abstract: A novel process was introduced about ethylene recovery from catalytic cracking dry gas. The commercial application in Yangzhou Petrochemical Co. Ltd., SINOPEC was disclosed. The results show that the conversion of ethylene is over 95.41%. The sulfur in gasoline fraction is about 6 μg/g and RON is as high as 114. The deficiency of this technology is that the gasoline selectivity is on the low side, only about 37.64%. In view of the present operation status, some proposals for improving the performance of catalyst are suggested.

Key words: catalytic cracking, dry gas, ethylene, aromatic hydrocarbon