重整抽余油综合利用研究及分离方案优化  

Comprehensive utilization of aromatic hydrocarbon extracted oil and optimization of separation schemes

作　　者：孟尧[1] 叶青[1] 杨基和[1] 

机构地区：[1]常州大学江苏省精细石油化工重点实验室,江苏省绿色催化材料与技术重点实验室,江苏常州213164

出　　处：《现代化工》2015年第12期141-144,共4页Modern Chemical Industry

摘　　要：通过加氢、精馏实验与Aspen模拟，对重整抽余油的综合利用进行研究和分离方案优化。重整抽余油中含有少量烯烃和苯，经催化加氢除去；通过精馏，从抽余油中分离得到符合指标要求的质量分数60％和99％的高低纯异己烷、70％和95％的高低纯正己烷、95％的高纯正庚烷以及120^#溶剂油和汽油调合组分；以第一个分馏塔的轻重关键组分不同拟定了4种分离方案，经过Aspen模拟，确定各塔最佳操作条件（包括理论板数、进料位置、回流比等），根据TAC（全年投资成本）最小值，确定最优的分离流程。结果表明，第三种方案T1轻重关键组分是3－乙基戊烷与正庚烷，其TAC值最小，为2609．5万元，分别比第一种、第二种、第四种流程节约6．30％、3．58％、4．21％。Through hydrogenation, distillation and aspen simulation, the comprehensive utilization of aromatic hydrocarbon extracted oil and optimization of the separation schemes are studied. A little alkene and benzene in aromatic hydrocarbon extracted oil are eliminated by hydrogenation. Through distillation,60% and 99% isohexane,70% and 95% hexane ,95% heptane, 120^# solvent oil and gas blending component can be achieved. Based on the difference between the light and heavy key components, four separation schemes are designed. Using aspen simulation, the best operating conditions including numbers of the theoretical plate, feeding position, reflux ratio, etc. , are obtained. According to the minimum value of the TAC （total annual cost） ,the best separation scheme are also determined. The results indicate that the best separation plan is the third one. Its TAC is 26. 095 million yuan,which is the least in the four plans. Compared with the first, second and fourth process, the cost saving is about 6. 30% ,3.58% and 4. 21%, respectively.

关 键 词：重整抽余油 加氢 精馏 ASPEN PLUS 模拟 

分 类 号：TE62[石油与天然气工程—油气加工工程]