附录2 热量平衡计算书

热量平衡计算书热量平衡计算书南京扬子石化15万吨/年乙烯法制醋酸乙烯项目 目 录第一章 总述4第二章 本项目能量衡算52.1 能量衡算的原理和准则52.2 能量衡算任务6第三章 能量衡算表73.1 反应工段71. M0101 原料气混合器72. M0102 原料液混合器73. E0101 醋酸蒸发换热器84. R0101 乙烯气相氧化反应器93.2 原料气和醋酸回收工段101. V0201 反应气体闪蒸罐102. C0201 吸收塔进料气体压缩机113. V0202 吸收塔进料闪蒸罐114. T0201 酸洗水洗塔125. T0202 脱气塔136. T0203 醋酸分离回收塔143.3 二氧化吸收工段171. V0301 再生气闪蒸罐172. T0301 二氧化碳吸收塔183. V0302 废气闪蒸罐184. T0302 CO2解析塔193.4 产品精制工段201. E0401 醋酸乙烯精制塔进料预热器202. T0401 水汽提塔214. T0403 脱轻组分塔215. T0404 乙醛精制塔226. T0402 醋酸乙烯精制隔壁塔23第一章 总述本项目的目标是为南京扬子石化有限公司设计一座乙烯法生产醋酸乙烯装置。本项目使用来自扬子石化的乙烯、其合资企业的乙酸和空气为主要原料，通过乙烯法获得纯度为99.9%的乙酸乙烯酯，年产量15万吨。在生产过程中，伴随着物料从一个体系或单元进入另一个体系或单元，过程中发生着质量传递的同时也伴随着能量的消耗、转移和释放。其中的能量变换关系和数量可以从能量衡算求得。对于一个项目的设计，可以依此来确定设备的热负荷。再根据设备的热负荷大小、所处理的物料的性质及工艺要求来选择恰当的设备。总之，通过下述能量衡算，可以为下个阶段工作中能量的优化利用，降低能耗提供主要依据。第二章 本项目能量衡算2.1 能量衡算的原理和准则工程依据化工设计中关于热量衡算的基本思想和要求，遵循基本规范与实际工艺相结合的原则，进行热量衡算书的编制。其中一个主要依据是能量平衡方程： 输入设备热量的总和 = 出设备热量的总和+损失热量的总和对于连续系统： Q + W = Hout - Hin 其中， Q设备的热负荷。 W输入系统的机械能。 Hout离开设备的各物料焓之和。 Hin进入设备的各物料焓之和。 在进行全厂热量衡算时，是以单元设备为基本单位，考虑由机械能转换、化学反应释放和单纯的物理变化带来的热量变化。最终对全工艺段进行系统级的热量平衡计算，进而用于指导节能降耗设计工作。52.2 能量衡算任务在进行本项目装置的热量衡算中，主要通过定量计算完成下述基本任务： （1）确定工艺单元中物料输送机械（如泵）所需要的功率，以便于进行设备的设计和选型； （2）确定吸收等单元操作中所需要的热量或冷量以及传递速率，计算换热设备的尺寸，确定加热剂和冷却剂的消耗量，为后续设计中比如供汽、供冷、供水等专业提供设备条件； （3）确定为保持一定反应温度所需移除或者加入的热传递速率，指导反应器的设计和选型； （4）提高热量内部集成度，充分利用余热，提高能量利用率，降低能耗； （5）最终计算出总需求能量和能量的费用，并由此确定工艺过程在经济上的可行性。安徽工程大学格运力行团队热量平衡计算书 27第三章 能量衡算表3.1 反应工段1. M0101 原料气混合器 表3.1-1 进出物料表INOUTUnitsRS101RS102S101S102S103S107FromV0301FS0203M0101ToM0101M0101M0101M0101M0101M0103Phase:VaporPhaseVaporPhaseVaporPhaseVaporPhaseVaporPhaseVapor PhaseMole Flowkmol/hr132.1123208.7150.1571.078E-02221.0123562.006Mass Flowkg/hr3733.80691301.6576.9140.3026200.212101242.891Volume Flowcum/hr327.3677772.8050.4002.920E-02569.2549278.637Temperature25.0020.9525.0025.0025.0020.94Pressurebar972.72980911.925911.925911.925911.925Vapor FractionMole计111111Liquid FractionMole计000000Solid FractionMole计000000Molar EnthalpyJ/kmol2.925E+072.435E+07-3.939E+08-6.426E+045.212E+072.624E+07Mass EnthalpyJ/kg1.035E+068.559E+05-8.951E+06-2.294E+031.858E+069.231E+05Enthalpy FlowkW1.074E+032.171E+04-1.719E+01-1.924E-043.200E+032.596E+04表3.1-2 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error0025961.588825961.58882-1.503E-092. M0102 原料液混合器表3.1-3 进出物料表INOUTUnitsRS103S105S106S108FromP0205M0102ToM0102M0102M0102M0103Phase:Liquid PhaseLiquid PhaseLiquid PhaseLiquid PhaseMole Flowkmol/hr446.386214.53512.379673.300Mass Flowkg/hr26433.70512883.385223.01339540.104Volume Flowcum/hr28.27912.0120.22440.452Temperature123.4325.0025.0092.77Pressurebar9.119259.119259.119259.11925Vapor FractionMole计0000Liquid FractionMole计1111Solid FractionMole计0000Molar EnthalpyJ/kmol-4.669E+08-4.831E+08-2.858E+08-4.687E+08Mass EnthalpyJ/kg-7.884E+06-8.045E+06-1.587E+07-7.981E+06Enthalpy FlowkW-5.789E+04-2.879E+04-9.829E+02-8.766E+04表3.1-4 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-87662.3475-87662.34847.433E-093. E0101 醋酸蒸发换热器表3.1-5 进出物料表INOUTUnitsS109S114S110S115FromM0103R0101E0101R0102ToE0101R0102V0101E0101Phase:Vapor PhaseVapor PhaseMole Flowkmol/hr4235.3064237.9664235.3064236.641Mass Flowkg/hr140782.995144357.024140782.995144357.024Volume Flowcum/hr9997.03717944.56214198.40818037.401Temperature46.10156.17120.0085.18Pressurebar9.119258.119259.119258.11925Vapor FractionMole计0.83111Liquid FractionMole计0.17000Solid FractionMole计0000Molar EnthalpyJ/kmol-5.245E+07-4.986E+07-4.452E+07-4.987E+07Mass EnthalpyJ/kg-1.578E+06-1.464E+06-1.339E+06-1.464E+06Enthalpy FlowkW-6.170E+04-5.869E+04-5.238E+04-5.869E+04表3.1-6 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-120391.7966-120391.796604. R0101 乙烯气相氧化反应器表3.1-7 进出物料表INOUTUnitsS113S501S114S502FromE0102M0501R0101R0101ToR0101R0101R0102V0501Phase:Vapor PhaseLiquid PhaseVapor PhaseMole Flowkmol/hr4346.9991000.0004237.9661000.000Mass Flowkg/hr144357.02418015.287144357.02418015.287Volume Flowcum/hr15975.55520.72917944.5627025.877Temperature150.00144.85154.21144.85Pressurebar9.119254.1322168.119254.132216Vapor FractionMole计1010.86Liquid FractionMole计0100.14Solid FractionMole计0000Molar EnthalpyJ/kmol-4.098E+07-2.767E+08-4.986E+07-2.436E+08Mass EnthalpyJ/kg-1.234E+06-1.536E+07-1.464E+06-1.352E+07Enthalpy FlowkW-4.948E+04-7.687E+04-5.869E+04-6.767E+04表3.1-8 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-126356.9102-126356.9097-2.777E-093.2 原料气和醋酸回收工段1. V0201 反应气体闪蒸罐表3.2-1 进出物料表INOUTUnitsS201S202AS202BFromE0103V0201V0201ToV0201C0201M0202Phase:Vapor PhaseLiquid PhaseMole Flowkmol/hr4.24E+033.37E+038.62E+02Mass Flowkg/hr1.44E+059.80E+044.63E+04Volume Flowcum/hr9.91E+039.86E+034.59E+01Temperature20.0020.0020.00Pressurebar8.119258.119258.11925Vapor FractionMole计0.8010Liquid FractionMole计0.2001Solid FractionMole计000Molar EnthalpyJ/kmol-6.431E+072.084E+07-3.977E+08Mass EnthalpyJ/kg-1.888E+067.172E+05-7.401E+06Enthalpy FlowkW-7.569E+041.953E+04-9.522E+04表3.2-2 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-75688.0003-75688.00374.083E-082. C0201 吸收塔进料气体压缩机表3.2-3 进出物料表INOUTUnitsS202AS203FromV0201C0201ToC0201E0201Phase:Vapor PhaseVapor PhaseMole Flowkmol/hr3374.6203374.620Mass Flowkg/hr98039.30298039.302Volume Flowcum/hr9861.2218526.679Temperature20.0039.02Pressurebar8.1192510Vapor FractionMole计11Liquid FractionMole计00Solid FractionMole计00Molar EnthalpyJ/kmol2.084E+072.154E+07Mass EnthalpyJ/kg7.172E+057.416E+05Enthalpy FlowkW1.953E+042.020E+04表3.2-4 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error0664.3071419531.449220195.7564-3.289E-023. V0202 吸收塔进料闪蒸罐表3.2-5 进出物料表INOUTUnitsS204S205AS205BFromE0201V202V202ToV202T0201M0202Phase:Vapor PhaseLiquid PhaseMole Flowkmol/hr3374.6203372.1372.484Mass Flowkg/hr98039.30297896.522142.780Volume Flowcum/hr7958.3607958.2180.143Temperature20.0020.0020.00Pressurebar101010Vapor FractionMole计0.999310Liquid FractionMole计0.000701Solid FractionMole计000Molar EnthalpyJ/kmol2.077E+072.107E+07-3.915E+08Mass EnthalpyJ/kg7.149E+057.259E+05-6.810E+06Enthalpy FlowkW1.947E+041.974E+04-2.701E+02表3.2-6能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error0019469.408119469.40811.402E-094. T0201 酸洗水洗塔表3.2-7 进出物料表INOUTUnitsFL202RS204S205AS213S206AS206BFromM0201V202E0202T0201T0201ToT0201T0201T0201T0201FS0203VA0201Phase:LiquidPhaseLiquid PhaseVaporPhaseVaporPhaseLiquidPhaseMoleFlowkmol/hr200836.1153372.1375.4833342.4111071.324MassFlowkg/hr3603.05649507.88697896.522207.18095105.89256108.790VolumeFlowcum/hr3.62546.0217958.21811.9788096.67254.189Temperature25.0020.0020.0020.0020.9526.58Pressurebar101010109.810Vapor FractionMole计0010.926410Liquid FractionMole计1100.073601Solid FractionMole计000000Molar EnthalpyJ/kmol-2.858E+08-4.797E+082.107E+07-1.718E+082.435E+07-4.383E+08Mass EnthalpyJ/kg-1.587E+07-8.102E+067.259E+05-4.546E+068.559E+05-8.369E+06Enthalpy FlowkW-1.588E+04-1.114E+051.974E+04-2.616E+022.261E+04-1.304E+05表3.2-8 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-107819.3930-107819.48228.249E-07冷凝器负荷（kW）0再沸器负荷（kW）05. T0202 脱气塔表3.2-9 进出物料表INOUTUnitsS210S211AS211BFromM0203T0202T0202ToT0202C0202P0201Phase:Vapor PhaseLiquid PhaseMole Flowkmol/hr1935.8285.4831930.345Mass Flowkg/hr102569.292207.180102362.111Volume Flowcum/hr174.482133.161110.034Temperature23.6526.3694.51Pressurebar1.013251.013251.114575Vapor FractionMole计0.001610Liquid FractionMole计0.998401Solid FractionMole计000Molar EnthalpyJ/kmol-4.201E+08-1.689E+08-4.124E+08Mass EnthalpyJ/kg-7.929E+06-4.469E+06-7.778E+06Enthalpy FlowkW-2.259E+05-2.572E+02-2.212E+05表3.2-10 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error4507.93150-225919.1490-221411.2172-1.995E-02冷凝器负荷（kW）0再沸器负荷（kW）4507.93156. T0203 醋酸分离回收塔（1）T0203表3.2-11 进出物料表INOUTUnitsFS201OS214V0204OT203LT203VFromFS0201P0201V0204T0203T0203ToT0203T0203T0203P0202E0205Phase:Liquid PhaseLiquid PhaseVapor PhaseLiquid PhaseVapor PhaseMole Flowkmol/hr1055.0231930.3452873.9604140.3451718.983Mass Flowkg/hr86191.812102362.112167926.516242918.363113562.076Volume Flowcum/hr91.884110.03650751.035259.80546381.334Temperature2094.52122.97122.1268.44Pressurebar1.013251.41.213251.205251.01325Vapor FractionMole计00101Liquid FractionMole计11010Solid FractionMole计00000Molar EnthalpyJ/kmol-3.490E+08-4.124E+08-4.393E+08-4.645E+08-2.930E+08Mass EnthalpyJ/kg-4.272E+06-7.778E+06-7.518E+06-7.917E+06-4.435E+06Enthalpy FlowkW-1.023E+05-2.212E+05-3.507E+05-5.342E+05-1.399E+05表3.2-12 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-674145.771-674145.7721.046E-09冷凝器负荷（kW）0再沸器负荷（kW）0（2）V0203 分相器表3.2-13 进出物料表INOUTUnitsE0205ODCOUTS214AFromE0205V0203V0203ToV0203FS0201P0204Phase:Liquid PhaseLiquid PhaseLiquid PhaseMole Flowkmol/hr1721.8241293.020428.804Mass Flowkg/hr113752.863105635.4548117.418Volume Flowcum/hr127.822112.6118.161Temperature62.012020Pressurebar1.013251.013251.01325Vapor FractionMole计000Liquid FractionMole计111Solid FractionMole计000Molar EnthalpyJ/kmol-3.278E+08-3.490E+08-2.892E+08Mass EnthalpyJ/kg-4.962E+06-4.272E+06-1.528E+07Enthalpy FlowkW-1.568E+05-1.254E+05-3.445E+04表3.2-14 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error-3012.67400-156793.4594-159806.13331.885E-02（3）E0206A表3.2-15 进出物料表INOUTUnitsP0202OS503E0206AOS504FromP0202V0501E0206AE0206AToE0206AE0206AE0206BP0502Phase:Liquid PhaseVapor PhaseLiquid PhaseMole Flowkmol/hr4140.343863.9224140.343863.922Mass Flowkg/hr242917.82415563.793242917.82415563.793Volume Flowcum/hr259.8047023.05624290.07117.908Temperature122.12144.85122.72144.85Pressurebar1.213254.132221.213254.13222Vapor FractionMole计010.32810Liquid FractionMole计100.67191Solid FractionMole计0000Molar EnthalpyJ/kmol-4.645E+08-2.384E+08-4.565E+08-2.767E+08Mass EnthalpyJ/kg-7.917E+06-1.323E+07-7.781E+06-1.536E+07Enthalpy FlowkW-5.342E+05-5.720E+04-5.250E+05-6.641E+04表3.2-16 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error-519.10800-108756.4495-109275.55794.750E-03（4）V0204表3.2-17 进出物料表INOUTUnits406S204CV0204OFromE0206BV0204V0204ToV0204FS0202T0203Phase:Liquid PhaseVapor PhaseMole Flowkmol/hr4140.3431266.3862873.957Mass Flowkg/hr242917.82474991.757167925.981Volume Flowcum/hr50831.23780.17050751.040Temperature122.97122.97122.97Pressurebar1.213251.213251.21325Vapor FractionMole计0.694101Liquid FractionMole计0.305910Solid FractionMole计000Molar EnthalpyJ/kmol-4.478E+08-4.669E+08-4.393E+08Mass EnthalpyJ/kg-7.632E+06-7.885E+06-7.519E+06Enthalpy FlowkW-5.150E+05-1.643E+05-3.507E+05表3.2-18 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-514965.9707-514965.8744-1.891E-073.3 二氧化吸收工段1. V0301 再生气闪蒸罐表3.3-1 进出物料表INOUTUnitsS307RS101S308FromE0301V0301V0301ToV0301M0101Phase:Vapor PhaseLiquid PhaseMole Flowkmol/hr136.393132.1124.282Mass Flowkg/hr3810.9653733.80677.159Volume Flowcum/hr327.445327.3677.767E-02Temperature252525Pressurebar9.72729.72729.7272Vapor FractionMole计0.968610Liquid FractionMole计0.031401Solid FractionMole计000Molar EnthalpyJ/kmol1.937E+072.925E+07-2.857E+08Mass EnthalpyJ/kg6.931E+051.035E+06-1.585E+07Enthalpy FlowkW7.337E+021.074E+03-3.398E+02表3.3-2 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00733.7408733.7408-1.599E-092. T0301 二氧化碳吸收塔 表3.3-3 进出物料表INOUTUnitsS301S306S302AS302BFromFS0203E0303T0301T0301ToT0301T0301E0301T0302Phase:Vapor PhaseLiquid PhaseVapor PhaseLiquid PhaseMole Flowkmol/hr133.696437.328136.393433.078Mass Flowkg/hr3804.2368059.4433810.9658052.713Volume Flowcum/hr323.8678.001392.4747.931Temperature20.957070.4757.52Pressurebar9.89.72729.72729.7272Vapor FractionMole计1010Liquid FractionMole计0101Solid FractionMole计0000Molar EnthalpyJ/kmol2.435E+07-2.842E+082.252E+07-2.866E+08Mass EnthalpyJ/kg8.559E+05-1.542E+078.060E+05-1.541E+07Enthalpy FlowkW9.044E+02-3.452E+048.532E+02-3.447E+04表3.3-4 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-33619.3431-33619.3287-4.269E-073. V0302 废气闪蒸罐表3.3-5 进出物料表INOUTUnitsS309S310AS310BFromE0302V0302V0302ToV0302Phase:Liquid PhaseVapor PhaseMole Flowkmol/hr87.80786.0211.786Mass Flowkg/hr1623.7251550.50473.221Volume Flowcum/hr47.0551.58445.722Temperature4040.7940.79Pressurebar1.013251.013251.01325Vapor FractionMole计0.020301Liquid FractionMole计0.979710Solid FractionMole计000Molar EnthalpyJ/kmol-2.861E+08-2.847E+08-3.534E+08Mass EnthalpyJ/kg-1.547E+07-1.580E+07-8.619E+06Enthalpy FlowkW-6.979E+03-6.804E+03-1.753E+02表3.3-6 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-6979.2691-6979.2691-2.421E-134. T0302 CO2解析塔表3.3-7 进出物料表INOUTUnitsS302BS303AS303BFromT0301T0302T0302ToT0302E0302P0301Phase:Liquid PhaseVapor PhaseLiquid PhaseMole Flowkmol/hr433.07887.807346.824Mass Flowkg/hr8052.7131623.7256428.988Volume Flowcum/hr7.9312669.8976.478Temperature57.52100.03102.36Pressurebar9.72721.013251.08525Vapor FractionMole计010Liquid FractionMole计101Solid FractionMole计000Molar EnthalpyJ/kmol-2.866E+08-2.417E+08-2.823E+08Mass EnthalpyJ/kg-1.541E+07-1.307E+07-1.523E+07Enthalpy FlowkW-3.447E+04-5.894E+03-2.720E+04表3.3-8能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error1382.58050-34472.575-33089.994-4.011E-03.4 产品精制工段1. E0401 醋酸乙烯精制塔进料预热器表3.4-1 进出物料表INOUTUnitsS214BS406S401S407FromFS0201T0402E0401E0401ToE0401E0401P0401E0402Phase:Liquid PhaseLiquid PhaseLiquid PhaseLiquid PhaseMole Flowkmol/hr237.996438.806237.996438.806Mass Flowkg/hr19443.4738164.51519443.4738164.515Volume Flowcum/hr20.7278.93822.2188.455Temperature20101.4666.5551.23Pressurebar1.013251.061251.013251.06125Vapor FractionMole计0000Liquid FractionMole计1111Solid FractionMole计0000Molar EnthalpyJ/kmol-3.490E+08-2.829E+08-3.420E+08-2.867E+08Mass EnthalpyJ/kg-4.272E+06-1.520E+07-4.186E+06-1.541E+07Enthalpy FlowkW-2.307E+04-3.448E+04-2.261E+04-3.495E+04表3.4-2 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-57555.4421-57555.442102. T0401 水汽提塔表3.4-3 进出物料表INOUTUnitsS215S405RS401S406FromP0204P0402T0402T0402ToT0402T0402E0205E0401Phase:Liquid PhaseLiquid PhaseVapor PhaseLiquid PhaseMole Flowkmol/hr428.80412.8422.838438.806Mass Flowkg/hr8117.418237.602190.4698164.515Volume Flowcum/hr8.1610.23973.4858.938Temperature202054.83101.46Pressurebar1.013251.013251.013251.06125Vapor FractionMole计0010Liquid FractionMole计1101Solid FractionMole计0000Molar EnthalpyJ/kmol-2.892E+08-2.858E+08-2.738E+08-2.829E+08Mass EnthalpyJ/kg-1.528E+07-1.545E+07-4.079E+06-1.520E+07Enthalpy FlowkW-3.445E+04-1.019E+03-2.158E+02-3