The Technology and Economic Analysis of the DCC and MIP Processes at Anqing Petrochemical Company

In order to meet the demand for gasoline quality upgrading, SINOPEC Anqing Branch Com- pany has retrofitted the DCC unit with the MGD technology and equipped the FCC unit with the MIP technology. This article makes an analysis and comparison on commercial application of the MIP and the DCC/MGD processes in terms of technology and economics while focusing on their specific features and methods for maximization of their economic benefits.

催化裂解Ⅱ型装置首次应用MGD技术的工业试验

对催化裂解Ⅱ(DCC Ⅱ)型装置进行多产液化气和柴油裂化技术(MGD)改造。根据装置特点,分别进行了提升管的预提升段和反应床层的稳定汽油回炼改造。改造前后进行了标定。标定结果显示,丙烯产率提高1 5～1 7个百分点,总轻烃液收增加1 0～1 2个百分点。汽油的烯烃体积分数降低6～10个百分点,芳烃体积分数增加4～5个百分点,辛烷值提高约1个单位。改造后的DCC装置可以根据不同季节、不同的市场需求和产品价格变化情况灵活生产。