精馏塔课程设计

课程设计说明书

武汉工程大学

化工与制药学院

课程设计说明书

课题名称化工原理课程设计

专业班级生物工程01班

学生学号0906020115

学生姓名彭泽望

学生成绩

指导教师李萍

课题工作时间2012.6.18----2012.6.30

武汉工程大学化工与制药学院

化工与制药学院

《课程设计》综合成绩评定表

学生姓名学生班级设计题目

彭泽望生物工程01班24000t/年乙醇--水精馏塔工艺设计

指导教师评语

指导教师签字：

年月日答辩记录

答辩组成员签字：记录人：

年月日

成绩综合评定栏

设计情况答辩情况

项目权

重

分

值

项目

权

重

分

值

1、计算和绘图能力35 1、回答问题能力20

2、综合运用专业知识能力10 2、表述能力（逻辑性、条理性）10

3、运用计算机能力和外语能力10

4、查阅资料、运用工具书的能力 5

5、独立完成设计能力 5

6、书写情况（文字能力、整洁度） 5

综合成绩

指导教师签名：学科部主任签名：

年月日年月日

摘 要

化工生产常需进行液体混合物的分离以达到提纯或回收有用组分的目的，精馏是利用液体混合物中各组分挥发度的不同并借助于多次部分汽化和部分冷凝达到轻重组分分离的方法。精馏操作在化工、石油化工、轻工等工业生产中中占有重要的地位。为此，掌握气液相平衡关系，熟悉各种塔型的操作特性，对选择、设计和分析分离过程中的各种参数是非常重要的。

塔设备是化工、炼油生产中最重要的设备类型之一。本次设计的筛板塔是化工生产中主要的气液传质设备。此设计针对二元物系的精馏问题进行分析、选取、计算、核算、绘图等，是较完整的精馏设计过程，该设计方法被工程技术人员广泛的采用。

精馏设计包括设计方案的选取，主要设备的工艺设计计算——物料衡算144.0=F x

D x =0.779

W

x =51092.3-⨯ F=h kmol /37.151 实际塔板数精馏段26块，提馏段20块。

工艺参数的选定泡点进料、泡点回流。设备的结构设计和工艺尺寸的设计计算塔高为21.1m,筛孔数目为1399个，辅助设备的选型，工艺流程图，主要设备的工艺条件图等内容。通过对精馏塔的运算，可以得出精馏塔的各种设计如塔的工艺流程、生产操作条件及物性参数是合理的，各种接管尺寸是合理的，以保证精馏过程的顺利进行并使效率尽可能的提高。

Abstract

Separation of liquid mixtures chemical production is often required to achieve the purpose of purification or recovery of useful components, distillation is the use of liquid volatile components in the mixture of different and, through to some of numerous partial vaporization and condensation reached the light heavy component separation method. Distillatio n in the chemical, petrochemical, light industry and other industrial production occupies an important place in the. To this end, mastering gas-liquid phase equilibrium, familiar with the operation characteristics of Tower-type, selection, design, and analysis of various parameters in the

separation process is very important.

Tower is the most important in the production of chemical, oil refining one of the type of device. Sieve-plate column of this design is the main gas-liquid mass transfer equipment in chemical production. Binary system of this design for analysis, selection, calculation, the distillation problem accounts, such as drawing, is a complete distillation design process, the design method is widely used by engineers and technicians.

Tower is the most important in the production of chemical, oil refining one of the type of device. Sieve-plate column of this design is the main gas-liquid mass transfer equipment in chemical production. Binary system of this design for analysis, selection, calculation, the distillation problem accounts, such as drawing, is a complete distillation design process, the design method is widely used by engineers and technicians.

Distillation design including design scheme select, process design and calculation of main equipment – material accounting for actual plate number D x =0.779 W x =51092.3-⨯ F=h kmol /37.151 distillation section 26, stripping section 20 blocks. Technical parameters of the selected bubble point feed, bubble point return. Equipment structure design and design and calculation of process dimension is a 21.1M Tower and number of sieve pore is 1399, selection of auxiliary equipment, process diagram, process conditions, such as the content of the main equipment. Through operation of the distillation column, it can be concluded that various designs such as the Tower of distillation processes, production operation conditions and physical parameters are reasonable, took over the size is reasonable, to ensure that the distillation process proceeds smoothly and improvement of efficiency as much as possible.

Keywords: ethanol; water distillation; stripping section; sieve-plate column.