甲醇精馏工段常压精馏塔工艺的设计及分析.doc

毕 业 设 计 (论 文) 专 业 班 级 学生姓名 学 号 课 题 30万吨/年甲醇精馏工段的初步设计 —— 常压精馏塔工艺设计及分析 指导教师 摘要 通过本课题的设计了解甲醇精馏的发展历程和国内外的研究现状，主要介绍了甲醇精馏工艺，对单塔流程、双塔流程、三塔流程和四塔流程工艺进行了阐述,显示了四塔流程的优越性。熟悉甲醇精馏工艺流程、技术设备等。对甲醇精馏工段全流程进行物料衡算,着重分析常压精馏塔的工艺设计。应用ASPEN PLUS化工模拟系统中的和DSTUW、RADFRAC塔精馏模块对常压精馏塔进行模拟。通过对甲醇精馏工艺流程的物料衡算和常压精馏塔工艺的研究，掌握甲醇精馏工业生产中各塔的作用、进出料情况、塔板数等相关参数的计算。最后绘制出工艺流程图、带控制点的物料流程图、设备图和设备布置图。 关键词：甲醇精馏、常压精馏塔、ASPEN模拟、流程图 Abstract Understanding of the issue through the design development process and the methanol distillation research status at home and abroad, introduces the methanol distillation process, the single-tower process, process towers, three towers and four towers process technology processes are described, showing the superiority of four-tower process. Familiar with the methanol distillation process and technical equipment. Methanol distillation section in the whole process of the material balance, analyzes the atmospheric distillation process design. ASPEN PLUS simulation system applied in the chemical and DSTUW, RADFRAC atmospheric distillation column distillation simulation module. Methanol distillation process through the material balance and the atmospheric distillation process of study, master the industrial production of methanol distillation tower role, access to material conditions, plate number and other relevant parameters of the calculation. Finally, draw the flow chart, flow chart with a control point of materials, equipment diagrams and equipment layout. Key words: methanol distillation, atmospheric distillation, ASPEN simulation, flowsheet 目录 摘要 I 目录 III 第一章 文献综述 1 1.1 甲醇生产工艺进展及国内发展前景 1 1.1.1甲醇简介 1 1.1.2甲醇的用途 4 1.1.3 甲醇的安全性、 4 1.2 甲醇的生产工艺 5 1.2.1生产方法概述 5 1.2.2甲醇生产中的关键问题 6 1.2.3甲醇的精馏过程 9 1.2.4工艺流程的选择 13 1.2.5 三塔精馏系统的优点 13 1.2.6影响精馏操作的因素与调节 14 1.3 本课题来源及思路 15 第二章 物料衡算 17 2.1操作条件 17 2.2 物料衡算 17 2.2.1 预塔物料衡算