大型蜡油加氢裂化装置提高重石脑油选择性的实践总结  

Summary of practice for improving the selectivity of heavynaphtha in a large paraffin hydrocracking unit

作　　者：徐宗坤 罗吉庆 吴波 李永旺 崇鹏 姜伟男 宋朝霞 Xu Zongkun;Luo Jiqing;Wu Bo;Li Yongwang;Chong Peng;Jiang Weinan;Song Zhaoxia(Zhejiang Petrochemical Co.,Ltd.,Zhoushan 316000,Zhejiang,China;Guangxi Petrochemical Company,CNPC,Qinzhou 535000,Guangxi,China)

机构地区：[1]浙江石油化工有限公司,浙江舟山316000 [2]中国石油广西石化公司,广西钦州535000

出　　处：《工业催化》2024年第9期50-55,共6页Industrial Catalysis

摘　　要：浙江石油化工有限公司2#4.0 Mt·a^(-1)蜡油加氢裂化装置的加工原料为常减压装置的直馏轻蜡油,主要产品包括轻石脑油、重石脑油、航空煤油、柴油和加氢尾油,其中重石脑油是生产对二甲苯(PX)的主要原料。为了增产重石脑油,此装置结合实际生产特点,深挖装置生产潜能,反应转化率从设计的75%提升至89.8%,重石脑油收率从23.99%提升至33.14%。重石脑油收率的大幅提升,保证了连续重整装置原料供给,进而保证了芳烃联合装置PX的高产、优产。同时高附加值船用燃料油、柴油产品收率变化较小,公司产品结构得到明显改善。The processing raw material for the 2#4.0 Mt·a^(-1) paraffin hydrocracking unit of Zhejiang Petrochemical Co.,Ltd.is straight run light paraffin oil from atmospheric and vacuum units.The main products include light naphtha,heavy naphtha,aviation kerosene,diesel oil and hydrogenated tail oil,among which heavy naphtha is the main raw material for the production of paraxylene(PX).In order to increase the production of heavy naphtha,this unit combines the actual production characteristics and deeply explores the production potential.The reaction conversion was increased from 75%to 89.8%,and the yield of heavy naphtha was increased from 23.99%to 33.14%.The substantial increase in heavy naphtha yield ensures the supply of raw materials in the continuous reforming unit,and then ensures the high yield and excellent yield of PX in the aromatics combined unit.At the same time,the yield changes of high value-added marine fuel oil and diesel products are relatively small,and the company's product structure has been significantly improved.

关 键 词：石油化学工程 加氢裂化 重石脑油 对二甲苯 

分 类 号：TQ426.95[化学工程] TE624.432[石油与天然气工程—油气加工工程]