摘 要:近年来,全球包括中国对PX及其下游产品的需求一直呈增长趋势,PX供不应求状况日益突出。本设计依托团队工艺设计方案,根据流程模拟与计算数据,在满足工艺要求并充分考虑其经济性的前提下,对塔设备、反应器、换热器、储罐及泵进行了设计、选型和校核研究。设计中甲苯塔采用双溢流浮阀板式塔板,异构化反应器选型为径向绝热固定床反应器,苯产品冷却器型号为G1000-VI-0.6-387.1,单个对二甲苯储罐公称容积为10000 m3,回收塔水抽出泵型号为IS80-50-250。66647
毕业论文关键词:对二甲苯,设备选型,校核
Abstract:In recent years, the demand of PX and its down-stream products from all over the world including China increases rapidly. The tight market situation of shortage becomes serious. Tower equipments, reactors and heat exchangers were designed, lectotype-selected and checked based on the production process of the team, process simulation and computation data. It also meet the premise of technological requirements and take a full consideration of economy. In this design, the toluene tower was double overflow and floating valve tray. The selected isomerization reactor was the radial adiabatic fixed-bed reactor. The model of the cooler of benzene products was G1000-VI-0.6-387.1. The nominal volume of p-xylene was 10000 m3. The model of extraction pump from recovery tower was IS80-50-250.
Keywords: P-xylene, equipment selection, check
目 录
1 前言 3
2 塔设备 3
2.1 设计要求 4
2.2 塔选型 4
2.3 塔板类型及性能对比 4
2.4 甲苯精馏塔设计 6
2.4.1 甲苯塔精馏段设计 6
2.4.2 甲苯塔提馏段设计 17
2.4.3 甲苯塔机械工程设计 19
2.5 芳烃抽提塔设计 22
2.5.1 萃取塔设备概述 22
2.5.2 萃取剂选择 23
2.5.3 抽提塔设计 23
2.5.4 其他塔设备一览表 31
3 反应器 31
3.1 选型原则 31
3.2 设计标准 31
3.3 反应器选型 32
3.4 异构化反应器设计 33
3.4.1 催化剂选择 33
3.4.2 反应机理 34
3.4.3 反应器设计 35
3.4.4 反应器参数一览表 38
4 换热器 38
4.1 换热器分类 38
4.2 换热器选型 38
4.2.1 选型原则 38
4.2.2 苯产品冷却器设计 40
4.2.3 其他换热器设备选型一览表 45
5 储罐 46
5.1 储罐分类 46
5.2 储罐标准 46
5.3 储罐技术规格 年产100万吨对二甲苯项目工艺设备选型:http://www.751com.cn/huaxue/lunwen_74624.html