年产1000吨的苯甲醛生产工艺

毕业论文 年产1000吨苯甲醛生产工艺

年产1000吨苯甲醛工艺设计

杨敏

（安徽工程大学，化工2073，3072109327）

摘 要

苯甲醛是重要的有机化合物，可用于合成药物、香料、化妆品、染料和农药等多种化工产品，应用领域非常广泛，对其进行制备方法的研究和理论性的探讨，不仅具有良好的经济效益，而且具有较高的学术价值，多年来一直是化学工作者研究的重点课题。

反应绿色化、设备小型化、过程集成化是目前化学及化工行业发展的趋势，开发安全、清洁、高效的生产过程己成为化学、化工界的迫切任务。本文采用研究了在近临界水中，无催化剂条件下，用过氧化氢作为氧源，氧化甲苯生成苯甲醛。并进行一系列的物料衡算，能量衡算及简单的经济核算，从而设计出完整的工艺。绘制带主要控制点的工艺流程图，进行工段设备设计、选型，制备设备一览表。绘制主要设备结构图。在苯甲醛大规模生产的今天，有重要的意义。 关键词：苯甲醛；近临界水；无催化剂；工艺流程；

毕业论文 年产1000吨苯甲醛生产工艺

Annual output of 1,000 tons of benzaldehyde production process

Yang min

(Anhui Polytechnic University ,Chemical Engineering and Technology 2073,3072109327)

Abstract

As an important species of organic compound benzaldehyde was widely used in synthesis of many kinds of chemicals，such as pharmaceuticals，spiceries，cosmetics，dyes，pesticide，etc.Studying theoretically and practically on the methods for its preparation has been all along a significant project for the chemist，since it has both good economic benefits and high academic values.

At present，green reaction，small equipment，integrated process is the development trend of chemical and chemical industry.The development of safe，clean and efficient production process has become an urgent task of chemistry and chemical industry. Then, this paper focused on the conversion of the toluene was oxidized to benzaldehyde in subcritical water by using hydrogen peroxide and without any catalysts. And a series of material balance calculations, energy and simple economic accounting, thus designed the complete process. Drawing process with the main control point map for section in equipment design, selection, preparation equipment list. Draw the main equipment structure. In the mass production of benzaldehyde today,there is important significance.

Key words: benzaldehyde；subcritical water；no catalysts；formaldehyde production process

毕业论文 年产1000吨苯甲醛生产工艺

目录

引言 ....................................................................................................................................... - 1 - 第1章 绪论 ......................................................................................................................... - 2 - 1.1 苯甲醛的合成方法的研究进展 .................................................................................... - 2 -

1.1.1 氯化水解法 .......................................................................................................... - 2 - 1.1.2 甲苯的气相氧化法 .............................................................................................. - 3 - 1.1.3 甲苯的液相氧化法 .............................................................................................. - 3 - 1.1.4 苯甲醇氧化法 ...................................................................................................... - 3 - 1.1.5 还原法 .................................................................................................................. - 4 - 1.1.6 间接电氧化法 ...................................................................................................... - 4 - 1.1.7 超(近)临界流体法(SCF) ...................................................................................... - 5 - 1.1.8 综述 ...................................................................................................................... - 7 - 第2章 工艺路线简介 ......................................................................................................... - 8 - 2.1 近临界水法制取苯甲醛的基础 .................................................................................... - 8 - 2.2 工艺流程简介 ............................................................................................................... - 11 - 2.3 工艺流程的特点 .......................................................................................................... - 12 - 第3章 物料衡算，能量衡算及简单的经济核算 ........................................................... - 13 - 3.1 物理性质 ...................................................................................................................... - 13 -

3.1.1 甲苯（C7H8） .................................................................................................... - 13 - 3.1.2 苯甲醛（C7H6O） ............................................................................................. - 13 - 3.1.3 苯甲酸（C7H6O2） ............................................................................................ - 13 - 3.1.4 水（H2O） ......................................................................................................... - 14 - 3.2 物料衡算 ...................................................................................................................... - 15 - 3.3 能量衡算 ...................................................................................................................... - 19 - 第4章 化工设备工艺参数计算 ....................................................................................... - 21 - 4.1 泵的工艺计算(输送过氧化氢的泵的计算)................................................................ - 21 - 4.2 反应器的工艺计算（PFR） ....................................................................................... - 22 -

4.2.1 管长的设计及计算 ............................................................................................ - 22 - 4.2.2 则反应器规格的计算 .................................................. …… 此处隐藏：5252字，全部文档内容请下载后查看。喜欢就下载吧 ……