文档介绍：吉林工业职业技术学院毕业设计
240kt/a甲醇精馏工艺设计
学生姓名:
指导老师:
专业:应用化工技术
系部:应用化工系
答辩日期:
摘要
甲醇是C1化工中非常重要的有机产品,在甲醇合成工业生产过程中,粗甲醇的精制不仅是决定甲醇产品质量的重要工序,而且也是影响甲醇生产成本的关键因素之一。换热器是化工生产中重要的通用热工设备之一,管壳式换热器以其结构简单、牢固、操作弹性大等特点被广泛应用于工业生产中。
本文的研究对象是四塔甲醇精馏工艺,与传统工艺相比新工艺能够节约能量,节约软水;但是同时新工艺增加了系统的藕合程度,加强了塔之间的关联性,提高了系统对于进料波动的响应的复杂性,给控制带来了很大的难题。为了能够实现新工艺的工业应用,对新工艺进行详细的研究。
关键词:甲醇精馏,Aspen Plus模拟,换热器计算,设备选型
ABSTRACT
Methanol is the very important basic product of chemical industry. In The synthesized methanol industry, the purification of raw methanol is not only the important process determining the quality of product, but also a key factor influencing the energy cost of production. The heat exchanger is one kind of general important thermal equipment in the Petroleum chemical industry production. The shell-and-tube heat exchanger is widely applied in the industrial production due to its simple structure, reliability and the operation flexibility.
Compared with the traditional distillation process, this novel process could reduce the heat consumption and soft-water consumption. However, this novel process enhances the coupling of different units in the system and the interactions between distillation columns, which results in plexity of system responses and control. Therefore, it is necessary to study the behavior of this methanol distillation process of four columns before putting it into implementation of industrial application.
Keywords: methanol distillation, simulation of , heat exchanger, design and type-selection
目录
摘要 I
前言 - 1 -
第一章文献综述 - 3 -
- 3 -
- 3 -
- 4 -
甲醇的简介 - 4 -
甲醇精馏流程发展 - 5 -
工艺流程概述 - 5 -
典型的工艺流程 - 6 -
影响精馏操作的因素与调节 - 9 -
第二章甲醇精馏工段物料衡算 - 12 -
甲醇精馏原理 - 12 -
预精馏塔的作用 - 12 -
加碱对甲醇精馏的改善 - 13 -
萃取精馏在甲醇精馏中的应用 - 13 -
加压塔的节能效应 - 14 -
回流比的选择 - 14 -
四塔精馏工段工艺的物料衡算 - 14 -
甲醇精馏工段物料衡算任务 - 14 -
甲醇精馏工段物料衡算计算原理[18] - 15 -
甲醇精馏工段物料衡算 - 16 -
第三章常压塔冷却器的设计 -