文档介绍：年产44万吨精对苯二甲酸(PTA)工段设计
摘要
本文以44万吨PTA生产装置氧化工段流程为对象,建立了氧化工段核心流程以及氧化工段全流程的严格机理模型。PTA(精对苯二甲酸)是合成聚酯纤维和塑料的重要原料,主要采用对二甲苯(PX)空气氧化法和加氢精制生产。复杂工业过程的建设,模拟和优化一直是过程系统工程(PSE)领域的核心研究内容。本文详细论述了工艺路线论证,工艺流程设计,全流程的物料衡算,热量衡算,主要设备的选型,车间布置设计,自动控制与优化,公用工程(劳动保护、安全生产、三废处理),工程设计概算,以及在本设计过程中所遇到的问题和针对问题提出的建议等内容。
关键词:PTA 工段设计加氢精制
Annual output of 44 tons of purified terephthalic acid (PTA) Section of Design
ABSTRACT
In the thesis,the steady state simulation and oplimization of PTA oxidation process are studied. PTA(purified terephthalic acid ) is pound polyester pibre and plastic importance materials, mainly paraxylene(PX) production by air oxidation and by hydro-refining .Modeling,simulation and optimization are the key to process systems engineering. This article discusses in detail the expound of technological line, the design of the process flows, the whole process of material balance,energybalance, the selection of the main equipment, general layout of the shop, automatic control and optimization, utilities system(labor protection, safety in production, waste treatment), engineering estimates, along with the problems in the design process and some suggestions for these problems are made.
Keywords: purified terephthalic acid the design of the section hydro-refining
目录
摘要 I
ABSTRACT II
目录 III
1 绪论 1
1
1
PTA的概况 1
PTA生产原理 2
2
PTA生产技术选择 2
PTA工艺路线论证 3
工艺流程设计 4
4
工艺流程简图 5
国内外市场情况 5
5
6
PTA国内外生产工艺技术发展情况 7
7
8
8
2 物料衡算 10
10
有关物料衡算技术数据 10
10
反应主要副产物的分配 12
12
12
3 热量衡算 14
14
4 工艺设备技术方案 16
16
16
16
16
17
5 工段工艺流程优化 19
19
19
,降低原料和能量消耗 19
PTA母液固体回收利用 19
19
、改进设备 20
20
20