邻二甲苯产品提质增产影响因素及优化措施  

Impact Factors and Optimization Measures for Improving Quality and Increasing Yield of O-xylene Products

作　　者：陈柳元 CHEN Liuyuan(China Petroleum&Chemical Corporation Jinling Petroleum Branch,Nanjing Jiangsu 210033,China)

机构地区：[1]中国石化金陵分公司,江苏南京210033

出　　处：《辽宁化工》2025年第4期682-685,共4页Liaoning Chemical Industry

摘　　要：从统筹“减油增化”发展角度分析,邻二甲苯(OX)作为高附加值化工产品,对其提质增产具有显著的经济效益,也是推动我国石化工业高质量发展的重要途径之一。文章简要介绍了某石化600 kt·a^(-1)芳烃联合装置联产邻二甲苯产品现状,进而分析了该装置邻二甲苯产品质量操作瓶颈:存在部分非芳烃、异丙苯及碳八芳烃同分异构体;影响邻二甲苯产品产量因素有二甲苯塔原料构成比例、二甲苯塔及邻二甲苯塔精馏工艺。逐一优化上述要素后,装置邻二甲苯产品纯度由96.5 wt%提升至98.0 wt%,邻二甲苯产品产量由11.3 t·h^(-1)提升至14.0 t·h^(-1),增效显著。As a high value-added chemical product,o-xylene has significant economic benefits to improve its quality and increase output,and is also one of the important ways to promote the high-quality development of China's petrochemical industry.This paper introduced the present situation of O-xylene production in a 600 kt·a^(-1) aromatic complex,then analyzed the bottleneck of O-xylene product quality operation as follows:non-aromatic,cumene and C8 aromatic isomer.The factors affecting the yield of o-xylene product are the proportion of raw materials and the operation of rectification column.After optimization,the purity of o-xylene product was increased from 96.5 wt%to over 98.0 wt%,and the output of o-xylene product was increased from 11.3 t·h^(-1)to 14.0 t·h^(-1).

关 键 词：邻二甲苯 质量 产量 优化 

分 类 号：TQ241[化学工程—有机化工]