MCP重油选择性裂解工艺技术的开发及其工业试验

基于重油一次裂解以及中间产物二次裂解反应化学的研究，开发了重油选择性裂解工艺技术（MCP）。在扬州石化有限责任公司一套ARGG装置改造成的 250kt/a MCP工业示范装置上进行了MCP技术的工业试验。标定结果表明：以苏北常压渣油为原料，采用MCP技术后装置的丙烯产率达到17.05%，异丁烯产率达到5.51%，裂解汽油研究法辛烷值为94.6，裂解柴油十六烷指数为30，装置总液体收率为 80.23%；与原ARGG装置相比，MCP装置的丙烯产率和异丁烯产率分别提高8.09百分点和2.52百分点，焦炭产率降低2.03百分点，汽油和柴油品质得到改善。

DEVELOPMENT OF SELECTIVE CATALYTIC CRACKING TECHNOLOGY FOR MAXIMIZING CATALYTIC PROPYLENE AND ITS COMMERCIAL APPLICATION

Based on the new findings of the primary cracking of heavy oil and the secondary cracking of middle streams, a MCP technology (Maximizing Catalytic Propylene from heavy oil) was developed. The first industrial trial was conducted in a commercial-scale demonstration unit of MCP with capacity of 250Kt/a from an existing ARGG unit modification. The results of industrial calibration of MCP technology show that when the atmospheric residue of Jiangsu crude oil is used as the feedstock, yields of propylene and isobutylene are 17.05% and 5.51%，respectively. RON of gasoline andcetane index of LCO are 94.6 and 30, respectively. The total liquid yield is 80.23%. Compared with ARGG, the yield of propylene and isobutylene increases 8.09% and 2.52%，respectively，while the coke reduces 2.03%. The unit of MCP has stably run for nearly 3 years with good economic and social benefits.