7-2附录二 能量衡算一览表

中海壳牌石油化工有限公司年产二十万吨醋酸乙烯项目能量衡算一览表2019“东华科技-恒逸石化杯”第十三届全国大学生化工设计竞赛中海壳牌石油化工有限公司年产二十三万吨醋酸乙烯项目能量衡算一览表团队名称： We Win团队 团队成员： 秦丹倪 刘 娜 王甜甜 苏振宁 杨学琳指导老师： 孙晓岩 夏 力 陶少辉 王 政 秦洪庆2019年8月中海壳牌石油化工有限公司年产二十三万吨醋酸乙烯项目 能量衡算一览表 1.1总述21.2 热量衡算原理21.3 热量衡算任务21.4 热量衡算41.4.1反应工段41.4.2吸收工段121.4.3精馏工段191.1总述本项目拟建一套年生产二十三万吨醋酸乙烯的装置，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反应工段1.4.1.1 换热器(E0101)热量衡算表1-1 热负荷表WQHeat Duty（Gcal/hr）0-1.761表1-2 流股焓变计算表进出口inout物流编号122123Temperature 126.240Pressure bar6.56Vapor Frac00Mole Flow kmol/hr1045.371045.37Mass Flow kg/hr62500.0062500.00Volume Flow cum/hr67.03959.397Enthalpy Gcal/hr-111.80-113.56表1-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-1.7610-111.80-113.561.4.1.2 换热器(E0102)热量衡算表2-1 热负荷表WQHeat Duty（Gcal/hr）01.02表2-2 流股焓变计算表进出口Inout物流编号105106Temperature -30.0030.00Pressure bar26.0125.51Vapor Frac01Mole Flow kmol/hr371.48371.48Mass Flow kg/hr10419.7910419.79Volume Flow cum/hr23.65366.99Enthalpy Gcal/hr3.634.66表2-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)1.0203.634.661.4.1.3 换热器(E0103)热量衡算表3-1 热负荷表WQHeat Duty（Gcal/hr）00表3-2 流股焓变计算表进出口inout物流编号S30118119112Temperature/119.69160135136.62Pressure/bar87.157.158Vapor Frac1111Mole Flow / kmol/hr5329.365360.165360.165329.36Mass Flow /kg/hr181916.52188219.49188219.49181916.52Volume Flow/cum/hr19968.7326998.3625440.1021063.33Enthalpy/Gcal/hr-57.50-65.96-67.88-55.58表3-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)00-123.46-123.461.4.1.4换热器(E0104)热量衡算表4-1 热负荷表WQHeat Duty（Gcal/hr）06.37表4-2 流股焓变计算表进出口inout物流编号112113Temperature 136.62160Pressure bar87.75Vapor Frac1.001.00Mole Flow kmol/hr5329.365329.36Mass Flow kg/hr181916.52181916.52Volume Flow cum/hr21063.3324765.05Enthalpy Gcal/hr-55.58-49.21表4-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)6.370-55.58-49.211.4.1.5换热器(E0105)热量衡算表5-1 热负荷表WQHeat Duty（Gcal/hr）0-2.57表5-2 流股焓变计算表进出口inout物流编号120121Temperature 6040Pressure bar6.656.15Vapor Frac0.780.76Mole Flow kmol/hr5360.165360.16Mass Flow kg/hr188219.49188219.49Volume Flow cum/hr17673.4817319.57Enthalpy Gcal/hr-81.12-83.69表5-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-2.570-81.12-83.691.4.1.6换热器(E0106)热量衡算表6-1 热负荷表WQHeat Duty（Gcal/hr）0-7.3表6-2 流股焓变计算表进出口inout物流编号129130131Temperature 108.4030.0030.00Pressure bar21.91.9Vapor Frac101Mole Flow kmol/hr831.88757.3574.53Mass Flow kg/hr43857.9341391.852466.07Volume Flow cum/hr11824.8843.61975.83Enthalpy Gcal/hr-56.07-63.14-0.23表6-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-7.30-56.07-63.371.4.1.7 反应器(R0101)热量衡算(1)第一段热量衡算表7-1热负荷表WQHeat Duty（Gcal/hr）0-6.43表7-2 流股焓变计算表进出口inout物流编号114D1Temperature 159.31160Pressure bar7.757.55Vapor Frac11Mole Flow kmol/hr5390.995325.48Mass Flow kg/hr183886.15183886.15Volume Flow cum/hr25011.7725402.59Enthalpy Gcal/hr-49.20-55.63表7-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-6.430-49.20-55.63(2)第二段热量衡算表7-4热负荷表WQHeat Duty（Gcal/hr）0-5.36表7-5 流股焓变计算表进出口inout物流编号D2D3Temperature 159.25160Pressure bar7.557.35Vapor Frac11Mole Flow kmol/hr5393.285339.85Mass Flow kg/hr186052.82186052.82Volume Flow cum/hr25681.6026164.21Enthalpy Gcal/hr-55.62-60.98表7-6 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-5.360-55.62-60.98(3)第三段热量衡算表7-7热负荷表WQHeat Duty（Gcal/hr）0-4.99表7-8流股焓变计算表进出口inout物流编号D4118Temperature 159.25160Pressure bar7.357.15Vapor Frac11Mole Flow kmol/hr5407.655360.16Mass Flow kg/hr188219.49188219.49Volume Flow cum/hr26451.1126998.36Enthalpy Gcal/hr-60.97-65.96表7-9 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-4.990-60.97-65.961.4.1.8塔(T0101)热量衡算表8-1热负荷表WCondenserReboilerHeat Duty（Gcal/hr）000表8-2流股焓变计算表进出口inout物流编号121123124125Temperature 404051.8844.0Pressure bar6.1565.55.7Vapor Frac0.76010Mole Flow kmol/hr5360.161045.373986.012419.52Mass Flow kg/hr188219.4962500.00114502.80136216.68Volume Flow cum/hr17319.5759.3919585.42137.63Enthalpy Gcal/hr-83.69-113.5635.44-232.70表8-3热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)00-197.25-197.261.4.1.9 闪蒸罐(V0102)热量衡算表9-1 热负荷表WQHeat Duty（Gcal/hr）00表9-2 流股焓变计算表进出口inout物流编号125130205129134Temperature 44.0430.0047.47108.40108.40Pressure bar5.71.98.322Vapor Frac00010Mole Flow kmol/hr2419.5757.351181.91831.883526.9Mass Flow kg/hr136216.6841391.8547212.3043857.93180963.120Volume Flow cum/hr137.6343.6148.7011824.88199.00Enthalpy Gcal/hr-232.70-63.14-103.36-56.07-343.14表9-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)00-399.2-399.21.4.2吸收工段1.4.2.1换热器（E0201）热量衡算表10-1热负荷表WQHeat Duty（Gcal/hr）00表10-2 流股焓变计算表进出口inout物流编号209202210203Temperature 46.25126.4011081.11Pressure bar796.89Vapor Frac1010Mole Flow kmol/hr1200.02585.411200.02585.41Mass Flow kg/hr33498.703500033498.7035000Volume Flow cum/hr4552.5737.5565621.8235.09Enthalpy Gcal/hr12.96-65.5813.81-66.44表10-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)00-52.62-52.631.4.2.2换热器（E0202）热量衡算表11-1 热负荷表WQHeat Duty（Gcal/hr）0-0.46表11-2 流股焓变计算表进出口inout物流编号203204Temperature 81.1140Pressure bar98.5Vapor Frac00Mole Flow kmol/hr585.41585.41Mass Flow kg/hr3500035000Volume Flow cum/hr35.0933.26Enthalpy Gcal/hr-63.13-63.59表11-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-0.460-63.13-63.591.4.2.3换热器（E0204）热量衡算表12-1 热负荷表WQHeat Duty（Gcal/hr）0-0.03表12-2 流股焓变计算表进出口inout物流编号216217Temperature 48.5640Pressure bar98.5Vapor Frac00Mole Flow kmol/hr418.77418.77Mass Flow kg/hr1100011000Volume Flow cum/hr7.137.10Enthalpy Gcal/hr-31.07-31.10表12-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-0.030-31.07-31.101.4.2.4塔（T0201）热量衡算表13-1 热负荷表WCondenserReboilerHeat Duty（Gcal/hr）000表13-2 流股焓变计算表进出口inout物流编号133201204205206Temperature 97.52254047.4729.21Pressure bar998.58.38Vapor Frac10001Mole Flow kmol/hr1280.85555.08585.411181.911239.43Mass Flow kg/hr37230.21100003500047212.3035017.90Volume Flow cum/hr4386.0510.0633.2648.703894.81Enthalpy Gcal/hr10.78-37.89-63.59-103.3611.94表13-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)00-90.7-91.421.4.2.5吸收塔（T0202）热量衡算表14-1 热负荷表WCondenserReboilerHeat Duty（Gcal/hr）000表14-2 流股焓变计算表进出口inout物流编号 206 219 207 211Temperature 29.2148.1551.7145.31Pressure bar8877Vapor Frac1010Mole Flow kmol/hr1239.43640.811230.79630.36Mass Flow kg/hr35017.9015000.0034357.6415660.26Volume Flow cum/hr3894.8111.144610.6011.66Enthalpy Gcal/hr11.94-46.2513.29-47.60表14-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)00-34.31-34.311.4.2.6解吸塔（T0203）热量衡算表15-1 热负荷表WCondenserReboilerHeat Duty（Gcal/hr）0-2.233.18表15-2 流股焓变计算表进出口inOut物流编号212213214Temperature 80108.66130.99Pressure bar6.51.51.7Vapor Frac0.0006810Mole Flow kmol/hr630.41230.67418.77Mass Flow kg/hr15660.264660.2611000Volume Flow cum/hr13.764836.517.59Enthalpy Gcal/hr-47.29-13.80-30.77表15-3热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)3.180-47.29-44.571.4.3精馏工段1.4.3.1醋酸粗分塔（T0301）热量衡算表16-1 热负荷表WCondenserReboilerHeat Duty（Gcal/hr）0-10.260.22表16-2 流股焓变计算表进出口inout物流编号135301302Temperature 108.4779.13117.19Pressure bar41.11.3Vapor Frac010Mole Flow kmol/hr3526.90590.112936.78Mass Flow kg/hr180963.1233463.12147500Volume Flow cum/hr199.0215265.32160.76Enthalpy Gcal/hr-343.13-39.03-299.13表16-3热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-10.040-328.13-338.161.4.3.2塔（T0302）热量衡算表17-1 热负荷表WCondenserReboilerHeat Duty（Gcal/hr）0-0.030.3表17-2 流股焓变计算表进出口inout物流编号308309310Temperature 46.6571.07105.12Pressure bar3.21.0131.213Vapor Frac010Mole Flow kmol/hr231.283.56227.72Mass Flow kg/hr4282.22179.604102.61Volume Flow cum/hr4.41100.674.49Enthalpy Gcal/hr-15.69-0.21-15.20表17-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)0.270-15.69-15.421.4.3.3塔（T0303）热量衡算表18-1 热负荷表WCondenserReboilerHeat Duty（Gcal/hr）000表18-2 流股焓变计算表进出口inout物流编号319321322314S2STemperature 102.40127.49117.21102.32125.99Pressure bar2.51.321.11.3Vapor Frac01010Mole Flow kmol/hr2633.665711.642936.783306.697975.41Mass Flow kg/hr47571.14341481.8014750059727.88476825.65Volume Flow cum/hr51.9694344.42160.7792356.01511.25Enthalpy Gcal/hr-176.25-607.58-299.12-189.24-893.71表18-3热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)00-1082.97-1082.971.4.3.4塔（T0304）热量衡算表19-1 热负荷表WCondenserReboilerHeat Duty（Gcal/hr）000.92表19-2流股焓变计算表进出口inout物流编号311312313Temperature 41.6856.7071.23Pressure bar1.0131.0131.213Vapor Frac0.04610Mole Flow kmol/hr434.0682.18351.88Mass Flow kg/hr33700.094752.9928947.09Volume Flow cum/hr560.332225.0533.42Enthalpy Gcal/hr-34.315-4.96-28.42表19-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)0.920-34.31-33.381.4.3.5塔（T0305）热量衡算表20-1 热负荷表WCondenserReboilerHeat Duty（Gcal/hr）0-1.381.44表20-2 流股焓变计算表进出口inout物流编号328329330Temperature 70.5557.5678.17Pressure bar1.2131.0131.213Vapor Frac0.00200Mole Flow kmol/hr403.3271.80331.52Mass Flow kg/hr33039.434499.9728539.46Volume Flow cum/hr59.235.0633.40Enthalpy Gcal/hr-32.49-5.43-26.99表20-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)0.060-32.49-32.421.4.3.6塔（T0306）热量衡算表21-1热负荷表WCondenserReboilerHeat Duty（Gcal/hr）0-0.0520.065表21-2 流股焓变计算表进出口inout物流编号333334335Temperature 57.7120.9763.53Pressure bar21.0131.213Vapor Frac000Mole Flow kmol/hr71.801.0470.75Mass Flow kg/hr4499.9746.0004453.97Volume Flow cum/hr5.060.0595.04Enthalpy Gcal/hr-5.43-0.049-5.366表21-3热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)0.0130-5.43-5.411.4.3.7换热器（E0303）热量衡算表22-1 热负荷表WQHeat Duty（Gcal/hr）0-6.09表22-2 流股焓变计算表进出口inout物流编号303304Temperature 75.7840Pressure bar1.0131.013Vapor Frac0.990.01Mole Flow kmol/hr672.30672.30Mass Flow kg/hr38215.9938215.99Volume Flow cum/hr19123.36365.99Enthalpy Gcal/hr-43.99-50.08表23-3 热量平衡计算一览表Q(Gcal/hr)W(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)-6.090-43.99-50.081.4.3.8换热器（E0306）热量衡算表24-1 热负荷表WQHeat Duty（Gcal/hr）00表25-2 流股焓变计算表进出口inout物流编号315320316321Temperature 260.69125.99138.72127.49Pressure bar3.51.33.51.3Vapor Frac100.051Mole Flow kmol/hr3306.695711.643306.695711.64Mass Flow kg/hr59727.88341481.8059727.88341481.80Volume Flow cum/hr41557.25366.141936.6794344.42Enthalpy Gcal/hr-184.76-640.04-217.22-607.58表25-3 热量平衡计算一览表Q(Gcal/hr