年8万吨丙烯腈回收工段的初步设计稿毕业设计稿.docx

齐齐哈尔大学毕业设计(论文) 题目年8万吨丙烯***回收工段的初步设计学院化学与化学工程学院齐齐哈尔大学毕业设计(论文) II 齐齐哈尔大学毕业设计( 论文) I 摘要本文是主要研究年产 8万吨丙烯***回收工段的初步设计。文中首先论述回收工段的目的、国内外发展现状、市场前景以及生产方法。根据查找资料,确定生产装置采用以水为溶剂的萃取精馏塔工艺流程,主要目的是将丙烯***与乙***分离。本文重点阐述了丙烯***回收工段。包括工艺原理和工艺流程的论述。根据工艺参数进行物料衡算、热量衡算和设备计算,并依据计算的数据进行设备选型。并且对该工段的工艺控制、“三废处理”做了说明。最后根据工艺条件利用 Auto CAD 绘制带控制点的工艺流程图,并且完成了 20000 字的设计说明书。关键词:丙烯***;乙***;溶剂水;回收齐齐哈尔大学毕业设计(论文) II Abstract This article is mainly an annual output of80,000 tons of acrylonitrile recovery section the preliminary design. Firstly, this paper discusses the purpose of the recovery section, development in the world, the market prospects and production methods. To find the information of the production installations in the extractive distillation column with water as solvent process, the main purpose is the separation of acrylonitrile and acetonitrile. This article focuses on the acrylonitrile recovery section including process principles and processes discussing. Process parameters of material balance, heat balance puting equipment, and equipment selection are based on the calculated data. Process controling, "three wastes" are described. Finally, according to the process conditions the use of Auto CAD drawing with a process flow diagram of the control points, completed the design specification of20000 words. Key words: Acrylonitrile; Acetonitrile; Solvent water; Recover 齐齐哈尔大学毕业设计(论文) III 目录摘要........................................................................................................................................... I Abstract ........................................................................................................................................ I 第 1章总论............................................................................................................................. 1 概述................................................................................................................................ 1 生产的意义与作用....................................................