安徽工程科技学院毕业设计
用chemcad模拟年产15,000吨甲乙酮工艺过程
罗胜
（安徽工程科技学院生化系 芜湖 241000）
摘 要
本文简要介绍了当前主流化工设计和流程模拟软件ChemCAD的应用范围、使用方法及其功能扩展。ChemCAD是美国Chemstations公司开发的化工流程模拟软件, 广泛应用于化学和石油工业、炼油、油气加工等领域中,为工艺开发、工程设计、优化操作和技术改造提供理论指导。
工业化生产甲乙酮主要有正丁烯两步法和丁烷液相氧化法2种方法。国外主要生产厂家有ExxonMobil 化学公司、Shell 公司和日本丸善石油化学株式会社,国内生产厂家有新疆独山子天利高新技术有限公司,辽宁抚顺石油化工二厂,山东齐翔腾达化工有限公司、山东济南炼油厂等10 家。2002 年我国甲乙酮的市场表观消费量为1712 万t ,主要消费区域在华南和华东。2004年全球甲乙酮产能约130万t/ a,总需求量约为100万t/ a。截至2005年上半年,我国甲乙酮的总生产能力约为21万t/ a;预计2010年我国甲乙酮的总生产能力将达3510万t/ a,总需求量将达到约3415万t /a。
关键词： ChemCAD；甲乙酮；生产方法；生产能力。
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罗胜：用chemcad模拟年产15,000吨甲乙酮工艺过程
Simulating the Methyl Ethyl Ketone production of 1,500 tons per
year by ChemCAD
Luo sheng
（Anhui University of Technology & Science The biochemistry engineering department luosheng 241000）
Abstract
The range of application,detailed operation method and function's expansion of ChemCAD,a software of design and simulation of chemical engineering process,has been introduced in this paper. ChemCAD produced by Chemstations Inc U.S.A is a process simulator for modeling steady state and unsteady state processsystems.It is used widely in many fields such as chemical engineering, petrochemistry, oil refining, oil gas process etc.
N-Butylene based two-step process and butane based liquid oxidation process are the main commercial methods for methyl ethyl ketone production. The main foreign producers are Exxon Mobil , Shell and Maruze ,and there are 10 producer at home , i. e. Xinjiang Dushanzi Tianli Company ,Liaoning Fushun No. 2 Petrochemical Plant ,Shandong Qixiang Tengda Chemical Company and Shandong Ji’nan Refinery. In 2002 , the apparent consumption of methyl ethyl ketone in China was 17.120 million tons with the main consume area in east and south of China. In 2004 the global production capacity of methyl ethylketone was about 1.30million tons, total demand was 1 million tons. By the first half year of 2005, the production capacityofmethyl ethyl ketone was 210 thousand tons per year in China. It is forecasted that in 2010 the product capacity and demand would be 35.10 million tons and 34.15 million tons respectively.
Keyword： ChemCAD； methyl ethyl ketone； commercial methods； product capacity.
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安徽工程科技学院毕业设计
目 录
用chemcad模拟年产15,000吨甲乙酮工艺过程 .................................................................. 1 插图清单 .................................................................................................................................... 4 表格清单 .................................................................................................................................... 5 引言 ............................................................................................................................................ 6 第1章 概述 .............................................................................................................................. 7
1.1 ChemCAD流程模拟软件简介..................................................................................... 7 1.2 ChemCAD流程模拟软件的使用方法......................................................................... 8 1.3 甲乙酮的性质及用途................................................................................................... 8 1.4 甲乙酮的生产技术....................................................................................................... 8 1.5 世界甲乙酮的生产能力及消费现状......................................................................... 10 第2章 本次设计采用的甲乙酮生产方法和工艺流程简介 ................................................ 13
2.1 本次设计采用的甲乙酮生产方法............................................................................. 13 2.2 本次设计采用的甲乙酮工艺流程简述..................................................................... 14 第3章 用ChemCAD模拟甲乙酮的生产工艺过程 ........................................................... 18
3.1 画流程图..................................................................................................................... 18 3.2 用ChemCAD模拟工艺流程..................................................................................... 19 3.3 对MEK合成与精制工段（第四工段）物料衡算 .................................................. 29 3.4 对MEK合成与精制工段（第四工段）进行能量衡算 .......................................... 30 第4章 设备设计 .................................................................................................................... 34
4.1 画流程图..................................................................................................................... 34 4.2 用ChemCAD模拟工艺流程..................................................................................... 34 结论与展望 .............................................................................................................................. 37 致 谢 ...................................................................................................................................... 38 参考文献 .................................................................................................................................. 39
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罗胜：用chemcad模拟年产15,000吨甲乙酮工艺过程
插图清单
图2-1 间接水合工艺流程图. .......................................................................................... 13 图2-2 气相脱氢流程图 ................................................................................................. 14 图3-1 TPXY ...................................................................................................................... 24 图3-2 Binodal Plot ............................................................................................................ 24 图3-3 7号塔Tower Profiles ............................................................................................. 25 图3-4 8号塔Tower Profiles ............................................................................................. 25 图3-5 7号塔Distillation Curves ...................................................................................... 26 图3-6 8号塔Distillation Curves ...................................................................................... 26 图3-7 3号换热器Heat Curves ........................................................................................ 27 图3-8 4号换热器Heat Curves ........................................................................................ 27 图3-9 16号换热器Heat Curves ...................................................................................... 28 图3-10 17号换热器Heat Curves .................................................................................... 28 图4-1 设备设计流程图（ChemCAD图） .................................................................... 34 图4-2 Tower Profiles ......................................................................................................... 36 大图1 第一，第二工段工艺流程图（AutoCAD图） ................................................. 40 大图2 第三，第四工段工艺流程图（AutoCAD图） ................................................. 41 大图3 板式精馏塔设计图（AutoCAD图） ................................................................. 42 大图4 厂房设计图（AutoCAD图） ............................................................................. 43 大图5 第四工段工艺流程图（ChemCAD图）............................................................ 44
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安徽工程科技学院毕业设计
表格清单
表1-1 2004年世界甲乙酮主要生产厂家情况 ............................................................... 11 表1-2 2005 年我国甲乙酮主要生产厂家情况. ............................................................. 11 表3-1 流程图数据框 ..................................................................................................... 18 表3-2 整个系统的物料平衡数据框 ............................................................................... 19 表3-3 严格精馏塔数据框 ............................................................................................... 20 表3-4 闪蒸器数据框 ....................................................................................................... 20 表3-5 换热器数据框 ....................................................................................................... 20 表3-6 加热炉数据框 ....................................................................................................... 21 表3-7 化学计量反应器数据框 ....................................................................................... 21 表3-8 泵数据框 ............................................................................................................... 21 表3-9 控制器数据框 ....................................................................................................... 21 表3-10 组分分离器数据框 ............................................................................................. 22 表3-11 所有流股性质数据框 ......................................................................................... 22 表3-12 严格精馏塔物料衡算表 ..................................................................................... 29 表3-13 闪蒸器物料衡算表 ............................................................................................. 29 表3-14 反应器物料衡算表 ............................................................................................. 30 表3-15 严格精馏塔能量衡算表 ..................................................................................... 30 表3-16 闪蒸器能量衡算表 ............................................................................................. 31 表3-17 换热器能量衡算表 ............................................................................................. 31 表3-18 化学计量反应器能量衡算表 ............................................................................. 32 表3-19 泵进行能量衡算表 ............................................................................................. 32 表3-20 总物料焓变表 ..................................................................................................... 32 表3-21 设备向系统提供的功率表 ................................................................................. 33 表4-1 塔设备类型表 ....................................................................................................... 34 表4-2 整个系统的物料平衡数据框 ............................................................................... 35 表4-3 严格精馏塔数据框 ............................................................................................... 35 表4-4 所有流股性质数据框 ........................................................................................... 36
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