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1. 范围.............................................................................................................................................1
2. PRO/Ⅱ流程模块软件的构成......................................................................................................1
2.1 输入惯例 (Input Conventions).....................................................................................1
2.1.1 关键字 (Keyword).............................................................................................1
2.1.2 缺省值 (Default)................................................................................................1
2.2 一般性数据(TITLE).....................................................................................................1
2.2.1 容差(TOLERANCE)..........................................................................................1
2.2.2 迭代次数(CALCULATION TRIALS=20).........................................................2
2.2.3 排序(SEQUENCE).............................................................................................2
2.3 组分数据(COMPONENT DATA)................................................................................2
2.3.1 库组分(LIBID)..................................................................................................2
2.3.2 非库组分(NONL)..............................................................................................2
2.3.3 石油馏分(PETROLEUM).................................................................................2
2.4 热力学数据(THENMODYNAMIC DATA)................................................................4
2.4.1 热力学基准..............................................................................................................4
2.4.1.1 汽相标准态...................................................................................................4
2.4.1.2 液相标准态...................................................................................................5
2.4.1.3 零焓基准.......................................................................................................5
2.4.2 热力学方法分类.....................................................................................................5
2.4.3 热力学方法选择指南.............................................................................................6
2.4.3.1 石油化工方面的应用..................................................................................7
2.4.3.2 天然气加工方面的应用..............................................................................8
2.4.3.3 炼油和气体加工的应用..............................................................................9
2.4.3.4 化学品方面的应用....................................................................................10
2.4.3.5 环境工程方面的应用................................................................................10
2.4.4 游离水倾析...........................................................................................................11
2.4.5 汽液液三相平衡计算...........................................................................................12
2.4.6 多种热力学方法的结合使用...............................................................................13
2.4.7 亨利定律的应用...................................................................................................14
2.5 流股数据(STREAM DATA)......................................................................................15
2.5.1 流股的热力学状态...............................................................................................15
2.5.2 关于物流的相态要注意的问题...........................................................................16
2.5.3 参比流股(REFERENCE STREAM)...............................................................17
2.6 单元模块数据(UNIT OPERATIONS DATA)............................................................18
2.6.1 简捷塔(SHORTCUT) ...........................................................................................18
2.6.2 严格塔(COLUMN)...............................................................................................21
2.6.2.1 严格塔的算法............................................................................................21
2.6.2.2 严格塔计算的的收敛问题........................................................................22
2.6.3 控制器(CONTROLLER)......................................................................................29
2.6.4 优化(OPTIMIZER)...............................................................................................30
2.6.5 流股物性计算(HCURVE) ....................................................................................33
2.6.6 迭代和收敛精度(容差) ........................................................................................36
2.6.6.1 容差............................................................................................................36
2.6.6.2 容差的匹配和迭代次数............................................................................36
3. 化工分离装置设计....................................................................................................................38
3.1 设计基础..........................................................................................................................38
3.1.1 装置规模和年操作时间.......................................................................................38
3.1.2 原料规格...............................................................................................................38
3.1.3 产品规格...............................................................................................................38
3.1.4 产品收率...............................................................................................................38
3.1.5 界区条件...............................................................................................................38
3.1.6 单位制和输出格式...............................................................................................38
3.2 分离过程设计..................................................................................................................38
3.2.1 分离序列的确定...................................................................................................38
3.2.1.1 探试规则....................................................................................................39
3.2.2 工艺参数的确定...................................................................................................39
3.2.2.1 塔压............................................................................................................39
3.2.2.2 进料板位置................................................................................................40
3.2.2.3 理论板数与回流比....................................................................................40
3.2.2.4 产品纯度和回收率....................................................................................41
3.2.2.5 进料热状态................................................................................................41
3.2.3 实际板数的确定...................................................................................................41
3.2.4 塔的水力学计算...................................................................................................42
4. 化工分离装置设计示例............................................................................................................43
4.1 设计基础..........................................................................................................................43
4.1.1 装置规模...............................................................................................................43
4.1.2 原料规格...............................................................................................................43
4.1.3 产品规格...............................................................................................................43
4.1.4 产品回收率...........................................................................................................43
4.1.5 界区条件...............................................................................................................43
4.1.6 单位制...................................................................................................................44
4.2 装置设计..........................................................................................................................44
4.2.1 确定分离序列.......................................................................................................44
4.2.2 确定塔压...............................................................................................................45
4.2.3 简捷塔计算...........................................................................................................46
4.2.4 严格塔计算...........................................................................................................53
4.2.5 进料板位置的确定...............................................................................................56
4.2.6 塔的操作性能曲线...............................................................................................59
4.2.7 塔的水力学计算和实际流程模拟计算...............................................................64
5. 乙烯装置冷箱/脱甲烷塔流程计算实例................................................................................84
5.1 流程叙述..........................................................................................................................84
5.2 流程模拟..........................................................................................................................84
5.2.1 模拟流程图...........................................................................................................84
5.2.2 PRO/II输入文件....................................................................................................85
5.2.2.1 一般性数据(TITLE)..............................................................................96
5.2.2.2 组分数据(COMP DATA)......................................................................96
5.2.2.3 热力学数据(THERMO DATA).............................................................96
5.2.2.4 流股数据(STREAM DATA).................................................................97
5.2.2.5 单元操作数据(UNIT OPERATION DATA).........................................98
5.2.3 模拟计算结果.......................................................................................................98
参考文献.......................................................................................................................................118 |
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