附录2-能量衡算说明书

神华榆林年产11.5万吨醋酸乙烯项目 能量平衡书目录1概述12能量衡算原理13能量衡算任务24能量衡算表34.1空分工段34.1.1林德空分塔(T0101、T0102)34.1.2 低温氧气选择性透过膜（M0101）44.2 VAM合成工段44.2.1 静态混合器（M0201）44.2.2 固定床列管式反应器（R0201A、R0201B、R0201C）54.3预分离工段64.3.1闪蒸器（V0301A、V0301B）64.3.2醋酸乙烯吸收塔（T0301A、T0301B、T0301C）64.3.3多级填料闪蒸塔（T0302A、T0302B）74.3.5 换热器（E0301A、E0301B）84.3.6 混合器（M0304）84.4脱碳工段94.4.1 二氧化碳吸收塔（T0401A、T0401B）94.4.2 燃烧炉（F0501）104.4.3换热器（E0401A、E0401B）104.3.4 闪蒸器（V0401A、V0401B）114.5 VAM精制工段124.5.1脱乙酸塔（T0601A、T0601B、T0601C）124.5.2第一乙酸提浓塔（T0602A、T0602B、T0602C）124.5.3第二乙酸提浓塔（T0603）134.5.4醋酸乙烯粗脱水塔（T0604）144.5.5 醋酸乙烯精脱水塔（T0605）144.5.6倾析器（D0610）155附录：物质说明16中山大学一路向烯团队 1概述本项目拟建一套年产11.5万吨醋酸乙烯的装置，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从能量衡算求得，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，通过下述能量衡算，可以为后续设计工作中提高能量的利用率，降低能耗提供主要依据。设计过程中利用Aspen Plus对全流程进行模拟，并在此基础上完成物料衡算、能量衡算。Aspen plus全模拟流程如图1-1所示：图1-1 全流程示意图2能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。3能量衡算任务（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；（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。4能量衡算表4.1空分工段4.1.1林德空分塔(T0101、T0102)表4-1 林德塔(T0101、T0102)能量衡算表进出口进口出口流股编号1-11-151-121-181-23Temperature()31.8528.8528.85-184.09-156.53Pressure(bar)5.81.181.171.228.43Mole Flow(kmol/hr)18284.385602.858686.571023750Mass Flow(kg/hr)5295091580422433774064.37120020Volume Flow(cum/hr)79733.061195051863372.962850.50Vapor Fraction11100.77Liquid Fraction00010.23Solid Fraction00000Enthalpy Flow(Gcal/hr)0.680.140.21-0.26-6.26W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）1053.30-7097.25677.06-6171.725.164.1.2 低温氧气选择性透过膜（M0101）表4-2 低温氧气选择性透过膜(M0101)能量衡算表进出口进口出口流股编号1-241-251-26Temperature()-5-5-5Pressure(bar)8.438.438.43Mole Flow(kmol/hr)37503.073746.93Mass Flow(kg/hr)120020122.70119897Volume Flow(cum/hr)9802.878.039794.84Vapor Fraction111Liquid Fraction000Solid Fraction000Enthalpy Flow(Gcal/hr)-0.870-0.87W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）00-0.87-0.8704.2 VAM合成工段4.2.1 静态混合器（M0201）表4-3 静态混合器(M0201)能量衡算表进出口进口出口流股编号2-152-22-12-141-282-3Temperature()30.582525184.75-575.62Pressure(bar)5.576.66.66.38.435.57Mole Flow(kmol/hr)2145.99180.04336.79487.191053255.01Mass Flow(kg/hr)60072.745050.7813635.7628419.913359.87110539.1Volume Flow(cum/hr)9386.84646.9713.521066.98274.4813220.34Vapor Fraction1100.3910.80Liquid Fraction0010.6100.20Solid Fraction000000Enthalpy Flow(Gcal/hr)25.992.24-31.04-50.64-0.02-53.46W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）00-53463-5346304.2.2 固定床列管式反应器（R0201A、R0201B、R0201C）表4-4固定床列管式反应器(R0201A、R0201B、R0201C)能量衡算表进出口进口出口流股编号2-72-10Temperature()156.79159.85Pressure(bar)6.66.59Mole Flow(kmol/hr)1084.991056.20Mass Flow(kg/hr)36845.3636845.45Volume Flow(cum/hr)5714.705597.76Vapor Fraction11Liquid Fraction00Solid Fraction00Enthalpy Flow(Gcal/hr)-14.56015-17.57766W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）0-3022.15-14560.15-17577.664.644.3预分离工段4.3.1闪蒸器（V0301A、V0301B）表4-5 闪蒸器(V0301A、V0301B)能量衡算表进出口进口出口流股编号3-33-43-6Temperature()29.8529.8529.85Pressure(bar)5.95.95.9Mole Flow(kmol/hr)1584.3011093.80490.50Mass Flow(kg/hr)55268.1731649.6923618.48Volume Flow(cum/hr)4508.554484.3424.21Vapor Fraction0.6910Liquid Fraction0.3101Solid Fraction000Enthalpy Flow(Gcal/hr)-33.5710.09-43.66W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）00-33569.13-33569.1-0.024.3.2醋酸乙烯吸收塔（T0301A、T0301B、T0301C）表4-6 醋酸乙烯吸收塔(T0301A、T0301B、T0301C)能量衡算表进出口进口出口流股编号HACC2（VAM）气VN2Temperature()18.1229.8529.2937.48Pressure(bar)65.95.85.8Mole Flow(kmol/hr)247.37729.20703.98272.60Mass Flow(kg/hr)13034.5521099.7919830.0914304.25Volume Flow(cum/hr)12.382989.562938.8414.30Vapor Fraction0110Liquid Fraction1001Solid Fraction0000Enthalpy Flow(Gcal/hr)-26.256.727.73-27.25W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）00-19522.05-19522.89-0.854.3.3多级填料闪蒸塔（T0302A、T0302B）表4-7 多级填料闪蒸(T0302A、T0302B)能量衡算表进出口进口出口流股编号3-343-363-38Temperature()33.3734.09143.29Pressure(bar)5.85.35.3Mole Flow(kmol/hr)899.4030.22869.18Mass Flow(kg/hr)45074.86873.0644201.81Volume Flow(cum/hr)46.87140.6951.61Vapor Fraction010Liquid Fraction101Solid Fraction000Enthalpy Flow(Gcal/hr)-84.530.27-81.94W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）02865.36-84534.28-81673.24.284.3.5 换热器（E0301A、E0301B）表4-8 换热器（E0301A、E0301B）能量衡算表进出口进口出口流股编号3-13-2Temperature()159.85121.17Pressure(bar)6.596.59Mole Flow(kmol/hr)1584.301584.30Mass Flow(kg/hr)55268.255268.2Volume Flow(cum/hr)8396.647565.55Vapor Fraction11Liquid Fraction00Solid Fraction00Enthalpy Flow(Gcal/hr)-26.37-27.27W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）0-900.38-26365.5-27266.9-1.034.3.6 混合器（M0304）表4-9 混合器(M0304)能量衡算表进出口进口出口流股编号3-73-323-33Temperature()29.8537.4833.37Pressure(bar)5.95.85.8Mole Flow(kmol/hr)981.01817.791798.8Mass Flow(kg/hr)47237.0242912.7690149.78Volume Flow(cum/hr)48.4342.9193.75Vapor Fraction000Liquid Fraction111Solid Fraction000Enthalpy Flow(Gcal/hr)-87.31-81.76-169.07W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）00-169069-16906904.4脱碳工段4.4.1 二氧化碳吸收塔（T0401A、T0401B）表4-10二氧化碳吸收塔（T0401A、T0401B）能量衡算表进出口进口出口流股编号4-114-94-134-15Temperature()3052.0030.0638.29Pressure(bar)65.675.575.57Mole Flow(kmol/hr)1691.851074.231073.011686.86Mass Flow(kg/hr)45052.2430261.3330037.3245276.2Volume Flow(cum/hr)37.654971.794701.7938.86Vapor Fraction0110Liquid Fraction1001Solid Fraction0000Enthalpy Flow(Gcal/hr) -114.5512.9713.00-114.58W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）00-101584-10158404.4.2 燃烧炉（F0501）表4-11 燃烧炉（F0501）能量衡算表进出口进口出口流股编号5-15-25-3Temperature()91.1525480Pressure(bar)11510Mole Flow(kmol/hr)23.91130160.62Mass Flow(kg/hr)713.733771.354485.08Volume Flow(cum/hr)713.54213.161007.57Vapor Fraction111Liquid Fraction000Solid Fraction000Enthalpy Flow(Gcal/hr)-1.67-0.13-2.61W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）0-817.321-1971.27-2607.48181.1114.4.3换热器（E0401A、E0401B）表4-12 换热器（E0401A、E0401B）热量衡算表进出口进口出口流股编号4-44-9Temperature()-2052.00Pressure(bar)5.675.67Mole Flow(kmol/hr)1074.231074.23Mass Flow(kg/hr)30261.3330261.33Volume Flow(cum/hr)3746.234971.79Vapor Fraction11Liquid Fraction00Solid Fraction00Enthalpy Flow(Gcal/hr)12.1612.97W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）0806.9612160129703.044.3.4 闪蒸器（V0401A、V0401B）表4-13 闪蒸器(V0401A、V0401B)能量衡算表进出口进口出口流股编号4-24-44-5Temperature()28.90-20-20Pressure(bar)5.35.675.67Mole Flow(kmol/hr)1086.181074.2311.96Mass Flow(kg/hr)30618.230261.33356.86Volume Flow(cum/hr)4971.633746.230.35Vapor Fraction110Liquid Fraction001Solid Fraction000Enthalpy Flow(Gcal/hr)11.8612.16-0.97W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）0-670.0511861.4611192.471.0584.5 VAM精制工段4.5.1脱乙酸塔（T0601A、T0601B、T0601C）表4-14 脱乙酸塔（T0601A、T0601B、T0601C）能量衡算表进出口进口出口流股编号6-26-56-9Temperature()143.80131.06172.80Pressure(bar)168.28.2Mole Flow(kmol/hr)579.4588.38491.07Mass Flow(kg/hr)29467.875185.1124282.76Volume Flow(cum/hr)34.446.6029.28Vapor Fraction000Liquid Fraction111Solid Fraction000Enthalpy Flow(Gcal/hr)-54.61-6.43-47.78W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）0409.956-54613.9-54204.5-0.5564.5.2第一乙酸提浓塔（T0602A、T0602B、T0602C）表4-15 第一乙酸提浓塔（T0602A、T0602B、T0602C)能量衡算表进出口进口出口流股编号6-96-116-12Temperature()172.80164.37194.48Pressure(bar)8.277Mole Flow(kmol/hr)491.09130.51360.55Mass Flow(kg/hr)24282.762683.9021598.87Volume Flow(cum/hr)29.283.2626.31Vapor Fraction000Liquid Fraction111Solid Fraction000Enthalpy Flow(Gcal/hr)-47.78-8.62-38.01W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）01140.29-47776.33-46638-1.964.5.3第二乙酸提浓塔（T0603）表4-16 第二乙酸提浓塔（T0603）能量衡算表进出口进口出口流股编号6-196-206-21Temperature()117.93159.97161.40Pressure(bar)76.36.3Mole Flow(kmol/hr)391.55347.7543.80Mass Flow(kg/hr)8051.697195.75855.94Volume Flow(cum/hr)85.618.711.02Vapor Fraction0.0500Liquid Fraction0.9511Solid Fraction000Enthalpy Flow(Gcal/hr)-26.28-22.98-2.93W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）0372.92-26282.93-25911.1-1.094.5.4醋酸乙烯粗脱水塔（T0604）表4-17 醋酸乙烯粗脱水塔（T0604）能量衡算表进出口进口出口流股编号6-256-286-38Temperature()49.543069.43Pressure(bar)111Mole Flow(kmol/hr)612.90410.06202.84Mass Flow(kg/hr)22751.077658.0815093Volume Flow(cum/hr)24.607.7617.28Vapor Fraction000Liquid Fraction111Solid Fraction000Enthalpy Flow(Gcal/hr)-43.17-28.01-16.08W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/hr）945-608.9-43170.53-44872.237.774.5.5 醋酸乙烯精脱水塔（T0605）表4-18 醋酸乙烯精脱水塔（T0605）能量衡算表进出口进口出口流股编号6-386-396-42Temperature()69.4356.5969.43Pressure(bar)111Mole Flow(kmol/hr)202.8465.90202.84Mass Flow(kg/hr)150933329.56215093Volume Flow(cum/hr)17.283.6817.28Vapor Fraction000Liquid Fraction111Solid Fraction000Enthalpy Flow(Gcal/hr)-16.08-4.82-16.08W（Mcal/hr）Q（Mcal/hr）Hin（Mcal/hr）Hout（Mcal/hr）Error（Mcal/h