催化裂解生产低碳烯烃技术和工业应用的进展

摘要

近年来全球聚烯烃生产对丙烯的需求日益增加,但传统蒸汽裂解制丙烯,乙烯的产出比一直低于丙烯,乙烯的需求比,丙烯供应产不足需,因此催化裂解生产低碳烯烃技术得到快速发展.本文介绍了蒸汽裂解生产低碳烯烃技术工业应用的现状,分析了KBR公司石脑油催化裂解多产低碳烯烃(ACO)技术工业示范试验以及目前已实现工业应用的6种减压瓦斯油,常压渣油催化裂解多产低碳烯烃技术的最新进展,认为我国低碳烯烃生产应从国情出发,认真贯彻"轻质化、多元化、炼化一体化"方针;同时建议我国加工石蜡基和中蜡中间基的大型炼化企业在"十二五"期间建设几套大型催化裂解装置,多产低碳烯烃特别是丙烯,以满足快速增长的需求.%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.