Abstract:

In recent years，with increasing demand for propylene for polypropylene production worldwide，the ratio of propylene to ethylene on the production side，has not kept pace with the ratio on the demand side. Moreover，the gap between supply and demand of propylene is expanding. To meet increasing demand，significant development of catalytic to produce low carbon olefin，is required. In this paper，commercialization of steam cracking technology to produce low carbon olefins is introduced. Demonstration test of advanced catalytic olefins（ACO）technology from Kellog Brown & Root LLC（KBR）and other 6 commercialized catalytic cracking of VGO/reduced crude are analyzed. It is suggested that based on the current situation in China，we should persist in policies of heavy to light conversion，diversification，integration of refining and petrochemical to increase low carbon olefin production. Large refining and petrochemical companies dealing with paraffin base crude and intermediate base crude are recommended to build several large scale catalytic cracking units to produce more low carbon olefins especially propylene.