附录二能量衡算一览表

长春化工年产14万吨醋酸乙烯酯项目 能量衡算一览表能量衡算一览表目录1.1总述11.2 热量衡算原理11.3 热量衡算任务21.4 热量衡算21.4.1醋酸乙烯合成工段21.4.2二氧化碳分离工段111.4.3醋酸乙烯酯精制工段161.4.4 EDA合成工段221.4.5EDA裂解工段28宁波工程学院KSF团队 1 /11.1总述本项目拟建一套年产14万吨醋酸乙烯酯的装置，在全工艺段中伴随着物料从一个体系或单元进入另一个体系或单元，在发生质量传递的同时也伴随着热量的消耗、释放和转化。其中的热量变换数量关系可以由热量衡算求得，对于新设计的车间，可以由此确定设备的热负荷。再根据设备的热负荷大小、所处理物料的性质及工艺要求选择恰当的设备。总而言之，通过下述热量衡算，可以为后续设计工作中提高热量的利用率，降低能耗提供主要依据。1.2 热量衡算原理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热量平衡方程：其中，表示输入设备热量的总和；表示输出设备热量的总和；表示损失热量的总和。对于连续系统：其中，设备的热负荷；输入系统的机械能；离开设备的各物料焓之和；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。1.3 热量衡算任务在进行脱硫并资源化利用装置的热量衡算中，主要通过定量计算完成下述基本任务：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；确定精馏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；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；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；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。1.4 热量衡算1.4.1醋酸乙烯合成工段1.4.1.1泵热量衡算（1） P0101表1-1热负荷表WQHeat Duty（Gcal/hr）0.0100表1-2物流焓变计算表INOUTUnits01070108PhaseLiquid PhaseLiquid PhaseTemperatureC79.47880.114Pressurebar0.98Enthalpy FlowGcal/hr-65.056-65.046Mole Flowskmol/hr611.514611.514Mass Flowskg/hr35086.22435086.224Volume Flowcum/hr36.29436.326表1-3热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0100-65.056-65.0460.000（2） P0102表1-4热负荷表WQHeat Duty（Gcal/hr）0.0000表1-5物流焓变计算表INOUTUnits01240125PhaseLiquid PhaseLiquid PhaseTemperatureC5.2115.211Pressurebar88Enthalpy FlowGcal/hr-78.145-78.145Mole Flowskmol/hr960.340960.340Mass Flowskg/hr48518.70148518.701Volume Flowcum/hr51.22551.225表1-6热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0000-78.145-78.1450.000（3） P0103表1-7热负荷表WQHeat Duty（Gcal/hr）-0.0060表1-8物流焓变计算表INOUTUnits01280129PhaseLiquid PhaseLiquid PhaseTemperatureC156.728156.535Pressurebar81.5Enthalpy FlowGcal/hr-75.750-75.756Mole Flowskmol/hr847.307847.307Mass Flowskg/hr45329.47045329.470Volume Flowcum/hr55.78755.766表1-9热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error-0.0060-75.750-75.7560.0001.4.1.2换热器热量衡算（1） E0101表1-10热负荷表WQHeat Duty（Gcal/hr）05.226表1-11物流焓变计算表INOUTUnits01080109PhaseLiquid PhaseVapor PhaseTemperatureC80.114198.332Pressurebar88Molar Vapor Fraction01Enthalpy FlowGcal/hr-65.046-59.819Mole Flowskmol/hr611.514611.514Mass Flowskg/hr35086.22435086.224Volume Flowcum/hr36.3262996.467表1-12热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0005.226-65.046-59.8190.000（2） E0102表1-10热负荷表WQHeat Duty（Gcal/hr）00.705表1-11物流焓变计算表INOUTUnits01130114PhaseVapor PhaseTemperatureC133.353150.000Pressurebar88Molar Vapor Fraction0.9971Enthalpy FlowGcal/hr-110.190-109.485Mole Flowskmol/hr2982.6112982.611Mass Flowskg/hr114198.121114198.121Volume Flowcum/hr12568.60913116.808表1-12热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0000.705-110.190-109.4850.000（3） E0103表1-13热负荷表WQHeat Duty（Gcal/hr）00.777表1-14物流焓变计算表INOUTUnits01150106PhaseLiquid PhaseTemperatureC112.67280.000Pressurebar0.90.9Molar Vapor Fraction0.0620.000Enthalpy FlowGcal/hr-63.667-64.444Mole Flowskmol/hr605.839605.839Mass Flowskg/hr34760.61934760.619Volume Flowcum/hr1375.84635.983表1-15热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0000.777-63.667-64.4440.000（4） E0104表1-16热负荷表WQHeat Duty（Gcal/hr）01.592表1-17物流焓变计算表INOUTUnits011601220117123PhaseVapor PhaseVapor PhaseTemperatureC150.00010.973127.44285Pressurebar8888Molar Vapor Fraction1.0000.9990.9611.000Enthalpy FlowGcal/hr-119.819-54.520-121.411-52.928Mole Flowskmol/hr2897.3982072.0002897.3982072.000Mass Flowskg/hr114198.12170213.975114198.12170213.975Volume Flowcum/hr12742.0656110.78611604.2747712.445表1-18热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0001.592-119.819-121.4110.000（5） E0105表1-19热负荷表WQHeat Duty（Gcal/hr）09.838表1-20物流焓变计算表INOUTUnits01170118PhaseTemperatureC127.44222.000Pressurebar88Molar Vapor Fraction0.9610.672Enthalpy FlowGcal/hr-121.411-131.249Mole Flowskmol/hr2897.3982897.398Mass Flowskg/hr114198.121114198.121Volume Flowcum/hr11604.2746020.038表1-21热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0009.838-121.411-131.2490.000（6） E0106表1-22热负荷表WQHeat Duty（Gcal/hr）01.566表1-23物流焓变计算表INOUTUnits01180119PhaseTemperatureC22.0005.000Pressurebar88Molar Vapor Fraction0.6720.624Enthalpy FlowGcal/hr-131.249-132.815Mole Flowskmol/hr2897.3982897.398Mass Flowskg/hr114198.121114198.121Volume Flowcum/hr6020.0385284.323表1-24热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0001.566-131.249-132.8150.0001.4.1.3反应器热量衡算（1） R0101表1-25热负荷表WQHeat Duty（Gcal/hr）0-10.334表1-26物流焓变计算表INOUTUnits01140116PhaseVapor PhaseVapor PhaseTemperatureC150150Pressurebar88Enthalpy FlowGcal/hr-109.484-119.818Mole Flowskmol/hr2982.6102897.398Mass Flowskg/hr114198.120114198.120Volume Flowcum/hr13116.80812742.065表1-27热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0-10.334-109.484-119.8180.0001.4.1.4压缩机热量衡算（1） C0101表1-28热负荷表WQHeat Duty（Gcal/hr）0.2680表1-29物流焓变计算表INOUTUnits01030104PhaseVapor PhaseVapor PhaseTemperatureC20326.363Pressurebar18Enthalpy FlowGcal/hr-0.333-0.065Average MW32.35532.355Mole Flowskmol/hr117.903117.903Mass Flowskg/hr3814.7513814.751表1-30热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.2680-0.333-0.0650（2） C0102表1-31热负荷表WQHeat Duty（Gcal/hr）0.3680表1-32物流焓变计算表INOUTUnits01100111PhaseVapor PhaseVapor PhaseTemperatureC20184.667Pressurebar18Enthalpy FlowGcal/hr2.2552.623Average MW28.05428.054Mole Flowskmol/hr181.188181.188Mass Flowskg/hr5083.0175083.017表1-33热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.36802.2552.6230.000（3） C0103表1-34热负荷表WQHeat Duty（Gcal/hr）0.0020表1-35物流焓变计算表INOUTUnits01260127PhaseVapor PhaseVapor PhaseTemperatureC7.2879.247Pressurebar7.88Enthalpy FlowGcal/hr1.3511.353Average MW28.21528.215Mole Flowskmol/hr113.034113.034Mass Flowskg/hr3189.2313189.231表1-36热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.00201.3511.3530.0001.4.1.5气液分离热量衡算（1） V0102表1-40热负荷表WQHeat Duty（Gcal/hr）01.222153904表1-41物流焓变计算表INOUTUnits011901200121PhaseVapor PhaseLiquid PhaseTemperatureC555Pressurebar888Enthalpy FlowGcal/hr-132.815-58.339-73.253Mole Flowskmol/hr2897.3981990.788906.611Mass Flowskg/hr114198.12168603.37045594.750Volume Flowcum/hr5284.3235754.94748.202表1-42热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error01.222-132.814-131.5920.0001.4.1.6塔热量衡算（1） T0101表1-43热负荷表WCondenserReboilerQHeat Duty（Gcal/hr）003.7450表1-44物流焓变计算表INOUTUnits012501260128PhaseLiquid PhaseVapor PhaseLiquid PhaseTemperatureC5.2117.287156.728Pressurebar87.88Enthalpy FlowGcal/hr-78.1451.351-75.750Mole Flowskmol/hr960.340113.034847.307Mass Flowskg/hr48518.7013189.23145329.470Volume Flowcum/hr51.225337.89055.787表1-45热量平衡计算一览表W(Gcal/hr)CondenserReboilerQ(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error003.7450-78.145-74.39901.4.2二氧化碳分离工段1.4.2.1泵热量衡算（1） P0201表2-1热负荷表WQHeat Duty（Gcal/hr）0.0000表2-2物流焓变计算表INOUTUnits03140202PhaseLiquid PhaseLiquid PhaseTemperatureC20.00020.658Pressurebar1.29Enthalpy FlowGcal/hr-0.410-0.410Mole Flowskmol/hr6.0056.005Mass Flowskg/hr108.504108.504Volume Flowcum/hr0.1090.109表2-3热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0000-0.410-0.4100.000（2） P0202表2-4热负荷表WQHeat Duty（Gcal/hr）0.0010表2-5物流焓变计算表INOUTUnits02010203PhaseLiquid PhaseLiquid PhaseTemperatureC20.00021.539Pressurebar19Enthalpy FlowGcal/hr-4.149-4.148Mole Flowskmol/hr38.00038.000Mass Flowskg/hr2229.9632229.963Volume Flowcum/hr2.1342.138表2-6热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0010-4.149-4.1480.000（3） P0204表2-7热负荷表WQHeat Duty（Gcal/hr）0.0090表2-8物流焓变计算表INOUTUnits02190203PhaseLiquid PhaseLiquid PhaseTemperatureC134.256135.045Pressurebar2.8132517.01325Enthalpy FlowGcal/hr-46.307-46.298Mole Flowskmol/hr632.793632.795Mass Flowskg/hr15344.17215344.172Volume Flowcum/hr11.82311.824表2-9热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0090-46.307-46.2980.0001.4.2.2换热器热量衡算（1） E0201表2-10热负荷表WQHeat Duty（Gcal/hr）00.061表2-11物流焓变计算表INOUTUnits02070208PhaseVapor PhaseVapor PhaseTemperatureC60.47430.000Pressurebar15.0132515.01325Molar Vapor Fraction1.0001.000Enthalpy FlowGcal/hr-5.697-5.758Mole Flowskmol/hr198.106198.106Mass Flowskg/hr6801.7896801.789Volume Flowcum/hr366.023332.589表2-12热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0000.061-5.697-5.7580.000（2） E0202表2-13热负荷表WQHeat Duty（Gcal/hr）00.760表2-14物流焓变计算表INOUTUnits02120213PhaseVapor PhaseTemperatureC142.65540.000Pressurebar14.0132514.01325Molar Vapor Fraction1.0000.779Enthalpy FlowGcal/hr-6.305-7.064Mole Flowskmol/hr225.926225.926Mass Flowskg/hr6710.7556710.755Volume Flowcum/hr537.261306.223表2-15热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0000.760-6.305-7.0640.0011.4.2.3压缩机热量衡算（1） C0201表2-16热负荷表WQHeat Duty（Gcal/hr）0.1030表2-17物流焓变计算表INOUTUnits02060207PhaseVapor PhaseTemperatureC8.85760.474Pressurebar815.01325Enthalpy FlowGcal/hr-5.801-5.697Average MW34.33434.334Mole Flowskmol/hr198.106198.106Mass Flowskg/hr6801.7896801.789表2-18热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.1030-5.801-5.6970.0001.4.2.3气液分离热量衡算（1） V0201表2-19热负荷表WQHeat Duty（Gcal/hr）00表2-20物流焓变计算表INOUTUnits021302140215PhaseVapor PhaseLiquid PhaseTemperatureC4039.93239.932Pressurebar14.01313.91313.913Enthalpy FlowGcal/hr-7.064-3.396-3.668Mole Flowskmol/hr225.92649.916176.010Mass Flowskg/hr6710.755902.1105808.644Volume Flowcum/hr306.2230.913307.590表2-21热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00-7.064-7.06401.4.2.4塔热量衡算（1） T0201表2-22热负荷表WCondenserReboilerQHeat Duty（Gcal/hr）0000表2-23物流焓变计算表INOUTUnits01200202020302040209PhaseVapor PhaseLiquid PhaseLiquid PhaseVapor PhaseLiquid PhaseTemperatureC520.65821.5397.7446.528Pressurebar89988Enthalpy FlowGcal/hr-58.339-0.410-4.148-58.006-4.891Mole Flowskmol/hr1990.7886.00538.0001981.06353.730Mass Flowskg/hr68603.370108.5042229.96368017.8882923.951Volume Flowcum/hr5754.9470.1092.1385783.3403.003表2-24热量平衡计算一览表W(Gcal/hr)CondenserReboilerQ(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0000-62.897-62.8970（2） T0203表2-25热负荷表WCondenserReboilerQHeat Duty（Gcal/hr）000.6840表2-26物流焓变计算表INOUTUnits021702180219PhaseVapor PhaseLiquid PhaseTemperatureC91.23086.428134.256Pressurebar7.013252.513252.81325Enthalpy FlowGcal/hr-48.786-1.796-46.307Mole Flowskmol/hr637.14820.711632.793Mass Flowskg/hr16159.871815.69415344.172Volume Flowcum/hr13.025244.14611.823表2-27热量平衡计算一览表W(Gcal/hr)CondenserReboilerQ(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error000.6840-48.786-48.1030.0001.4.3醋酸乙烯酯精制工段1.4.3.1泵热量衡算（1） P0303表3-1热负荷表WQHeat Duty（Gcal/hr）5.80E-050表3-2物流焓变计算表INOUTUnits03050306PhaseLiquid PhaseLiquid PhaseTemperatureC2020.017 Pressurebar11.2Enthalpy FlowGcal/hr-12.973 -12.973 Mole Flowskmol/hr190.608 190.608 Mass Flowskg/hr3549.179 3549.179 Volume Flowcum/hr3.589 3.589 表3-3热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error5.80E-050-12.973 -12.973 0（2） P0304表3-4热负荷表WQHeat Duty（Gcal/hr）1.53E-040表3-5物流焓变计算表INOUTUnits03080309PhaseLiquid PhaseLiquid PhaseTemperatureC23.798 23.824 Pressurebar11.2Enthalpy FlowGcal/hr-14.548 -14.548 Mole Flowskmol/hr180.690 180.690 Mass Flowskg/hr14438.940 14438.940 Volume Flowcum/hr15.563 15.564 表3-6热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error1.53E-040-14.548 -14.548 0（3） P0308表3-7热负荷表WQHeat Duty（Gcal/hr）4.38E-070表3-8物流焓变计算表INOUTUnits03190320PhaseLiquid PhaseLiquid PhaseTemperatureC80.000 80.012 Pressurebar11.1Enthalpy FlowGcal/hr-0.112 -0.112 Mole Flowskmol/hr0.707 0.707 Mass Flowskg/hr65.130 65.130 Volume Flowcum/hr0.054 0.054 表3-9热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error4.38E-070-0.112 -0.112 0（4） P0312表3-10热负荷表WQHeat Duty（Gcal/hr）2.08E-030表3-11物流焓变计算表INOUTUnits03290330PhaseLiquid PhaseLiquid PhaseTemperatureC224.803 224.851 Pressurebar0.11.1Enthalpy FlowGcal/hr-94.307 -94.305 Mole Flowskmol/hr629.376 629.376 Mass Flowskg/hr57956.191 57956.191 Volume Flowcum/hr55.855 55.858 表3-12热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error2.08E-030-94.307 -94.305 01.4.3.2换热器热量衡算（1） E0304表3-13热负荷表WQHeat Duty（Gcal/hr）00.009 表3-14物流焓变计算表INOUTUnits03130314PhaseLiquid PhaseLiquid PhaseTemperatureC100.961 20.000 Pressurebar1.21.2Molar Vapor Fraction00Enthalpy FlowGcal/hr-0.402 -0.410 Mole Flowskmol/hr6.005 6.005 Mass Flowskg/hr108.504 108.504 Volume Flowcum/hr0.119 0.109 表3-15热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00.009 -0.402 -0.410 0（2） E0311表3-16热负荷表WQHeat Duty（Gcal/hr）03.320 表3-17物流焓变计算表INOUTUnits03310332PhaseLiquid PhaseLiquid PhaseTemperatureC170.800 80.000 Pressurebar1.11.1Molar Vapor Fraction00Enthalpy FlowGcal/hr-96.544 -99.864 Mole Flowskmol/hr629.376 629.376 Mass Flowskg/hr57956.191 57956.191 Volume Flowcum/hr52.565 48.257 表3-18热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error03.320 -96.544 -99.864 01.4.3.3塔热量衡算（1） T0301表3-19热负荷表WCondenserReboilerQHeat Duty（Gcal/hr）0-10.264 8.824 0表3-20物流焓变计算表INOUTUnits012903030301PhaseLiquid PhaseLiquid PhaseLiquid PhaseTemperatureC156.535 129.164 61.802 Pressurebar1.51.51.3Enthalpy FlowGcal/hr-75.756 -50.335 -26.861 Mole Flowskmol/hr847.306 479.439 367.868 Mass Flowskg/hr45329.437 27508.388 17821.050 Volume Flowcum/hr55.766 30.603 19.405 表3-21热量平衡计算一览表W(Gcal/hr)CondenserReboilerQ(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0-10.264 8.824 0-75.756 -77.196 0（2） T0302表3-22热负荷表WCondenserReboilerQHeat Duty（Gcal/hr）00.000 0.304 0表3-23物流焓变计算表INOUTUnits030603070310PhaseLiquid PhaseVapor PhaseLiquid PhaseTemperatureC20.017 41.742 100.961 Pressurebar1.211.2Enthalpy FlowGcal/hr-12.973 -0.150 -12.519 Mole Flowskmol/hr190.608 3.431 187.177 Mass Flowskg/hr3549.179 167.073 3382.106 Volume Flowcum/hr3.589 89.826 3.695 表3-24热量平衡计算一览表W(Gcal/hr)CondenserReboilerQ(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00.000 0.304 0-12.973 -12.669 0（3） T0303表3-25热负荷表WCondenserReboilerQHeat Duty（Gcal/hr）0-0.484 0.837 0表3-26物流焓变计算表INOUTUnits030903160318PhaseLiquid PhaseVapor PhaseLiquid PhaseTemperatureC23.824 21.078 71.360 Pressurebar1.211.2Enthalpy FlowGcal/hr-14.548 -0.416 -13.778 Mole Flowskmol/hr180.690 11.266 169.424 Mass Flowskg/hr14438.940