5-能量平衡计算书

洛阳石化8.29万吨/年丙烷资源化利用项目 可行性研究报告 I独山子石化年产5800吨甲硫醇项目 能量平衡计算书南京理工大学N5-目录第一章 概述11.1热量衡算原理11.2 热量衡算任务1第二章 热量衡算22.1 MDEA脱硫工段热量衡算22.1.1 C0101 压缩机22.1.2 V0103 气液分离器22.1.3 T0101 MDEA吸收塔32.1.4V0104闪蒸罐42.1.5 T0101 解吸塔42.1.6 V0106气液分离器52.1.7 P0104 吸收液循环泵52.1.8 E0103 贫液加热器62.1.9 P0107 回流液进料泵72.2 反应分离精制工段热量衡算72.2.1 C0201 酸性气体压缩机72.2.2 P0201 甲醇进料泵82.2.3 E0201甲醇预热器92.2.4 R0201 甲醇硫化氢反应器92.2.5 E0202粗产品冷凝器102.2.6 V0203气液分离器112.2.7 T0201 甲醇吸收塔112.2.8 T0102 汽提塔122.2.9 C0203循环气体压缩机132.2.10 E0203循环气体加热器132.2.11 T0203 萃取精馏塔142.2.12 T0204 甲硫醇精制塔152.2.13T0204 甲醇回收塔152.3低烃/氢气低烃回收利用工段热量衡算162.3.1 C0301 压缩机162.3.2 C0302压缩机172.3.3 C0303 压缩机172.3.4 T0301 丁烷吸收塔182.3.5 T0303 脱甲烷塔192.3.6 T0304 脱乙烷丙烷塔192.3.7 T0304 脱乙烷丙烷塔202.4 总结21第一章 概述拟建一套年产5800吨的甲硫醇装置，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能量的消耗、释放和转化。其中的能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。总之，通过下述能量衡算，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。1.1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能量平衡方程：式中，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：Q + W =Hout - Hin式中， 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。1.2 热量衡算任务在进行甲硫醇装置的热量衡算中，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。第二章 热量衡算2.1 MDEA脱硫工段热量衡算2.1.1 C0101 压缩机表2-1 热负荷表WQHeat Duty(Gcal/hr)10.760表2-2 流股焓变计算表inout物流编号01020103Temperature()30.00377.71Pressure(MPa)0.11Vapor Frac11Mole Flow(kmol/hr)3695.193695.20Mass Flow(kg/hr)25000.5425000.54Volume Flow(l/min)9316570020061600Enthalpy(Gcal/hr)-13.69-2.93表2-3 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error10.760-13.69-2.9302.1.2 V0103 气液分离器表2-4 热负荷表WQHeat Duty(Gcal/hr)09.9表2-5 流股焓变计算表inout物流编号010501060132Temperature()000Pressure(MPa)011Vapor Frac010Mole Flow(kmol/hr)3695.1913690.6574.533614Mass Flow(kg/hr)25000.5424918.8781.67846Volume Flow(l/min)8508300840334081.72837Enthalpy(Gcal/hr)-4.60-14.28-0.31表2-6 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error09.9-4.6-14.5902.1.3 T0101 MDEA吸收塔表2-7 热负荷表WQHeat Duty(Gcal/hr)00表2-8 流股焓变计算表inout物流编号0107011901090108Temperature()35.0035.0031.0035.00Pressure(MPa)110.80.8Vapor Frac1001Mole Flow(kmol/hr)3690.6571027.4471019.1433698.961Mass Flow(kg/hr)24918.8723416.923513.7424822.16Volume Flow(l/min)948717023108.7123885.7511889800Enthalpy(Gcal/hr)-13.29-72.06-70.77-14.58表2-9 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00-85.35-85.3502.1.4V0104闪蒸罐表2-10 热负荷表WQHeat Duty(Gcal/hr)00表2-11 流股焓变计算表inout物流编号011001130120Temperature()656565Pressure(MPa)0.80.50.5Vapor Frac001Mole Flow(kmol/hr)1019.1431019.0850.0578626Mass Flow(kg/hr)23513.7423513.190.5438589Volume Flow(l/min)24337.724287.78325.3124Enthalpy(Gcal/hr)-70.08-70.080表2-12 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00-70.8-70.802.1.5 T0101 解吸塔表2-13 热负荷表WCondenserReboilerQHeat Duty(Gcal/hr)0-7.59.391.89表2-14 流股焓变计算表inout物流编号0114012601230133Temperature()8484.00121.60115.26Pressure(MPa)0.480.60.20.2Vapor Frac0001Mole Flow(kmol/hr)1019.08592.157611003.529107.7165Mass Flow(kg/hr)23513.191665.79822986.342192.873Volume Flow(l/min)24584.891726.60924023.51718830Enthalpy(Gcal/hr)-69.69-6.17-68.67-5.31表2-15 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error01.89-75.86-73.9802.1.6 V0106气液分离器表2-16 热负荷表WQHeat Duty(Gcal/hr)0-1.09表2-17 流股焓变计算表inout物流编号012301240201Temperature()000Pressure(MPa)0.20.10.1Vapor Frac101Mole Flow(kmol/hr)107.716592.1576115.55885Mass Flow(kg/hr)2192.8731665.798527.0743Volume Flow(l/min)3521181668.408350115Enthalpy(Gcal/hr)-5.31-6.31-0.09表2-18热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0-1.09-5.31-6.31-0.092.1.7 P0104 吸收液循环泵表2-19 热负荷表WQHeat Duty(Gcal/hr)-0.009表2-20 流股焓变计算表inout物流编号01150116Temperature()102.8501103.1452Pressure(MPa)0.181Vapor Frac00Mole Flow(kmol/hr)1003.5291003.529Mass Flow(kg/hr)22986.3422986.34Volume Flow(l/min)23656.6223654.6Enthalpy(Gcal/hr)-69.05-69.045表2-21 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error-0.009-69.05-69.04502.1.8 E0103 贫液加热器表2-22 热负荷表WQHeat Duty(Gcal/hr)-1.382表2-23 流股焓变计算表inout物流编号01160117Temperature()103.145235Pressure(MPa)11Vapor Frac00Mole Flow(kmol/hr)1003.5291003.529Mass Flow(kg/hr)22986.3422986.34Volume Flow(l/min)23654.622676.35Enthalpy(Gcal/hr)-69.04558-70.42772表2-24 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error-1.382-69.045-70.42802.1.9 P0107 回流液进料泵表2-25 热负荷表WQHeat Duty(Gcal/hr)00表2-26 流股焓变计算表inout物流编号01250126Temperature()8484.00707Pressure(MPa)0.590.6Vapor Frac00Mole Flow(kmol/hr)92.1576192.15761Mass Flow(kg/hr)1665.7981665.798Volume Flow(l/min)1726.611726.609Enthalpy(Gcal/hr)-69.04558-70.42772表2-27 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0-6.173-6.17302.2 反应与产品分离精制工段热量衡算2.2.1 C0201 酸性气体压缩机表2-28热负荷表WQHeat Duty(Gcal/hr)0.040表2-29 流股焓变计算表inout物流编号02010202Temperature()0300Pressure(MPa)0.11Vapor Frac11Mole Flow(kmol/hr)15.5588515.55885Mass Flow(kg/hr)527.0743527.0743Volume Flow(l/min)35011573394.71Enthalpy(Gcal/hr)-0.085-0.045表2-30 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0-0.04-0.085-0.04502.2.2 P0201 甲醇进料泵表2-31 热负荷表WQHeat Duty(Gcal/hr)00表2-32 流股焓变计算表inout物流编号02040205Temperature()2526.3629Pressure(MPa)0.11Vapor Frac00Mole Flow(kmol/hr)15.1675215.16752Mass Flow(kg/hr)486486Volume Flow(l/min)615.4888616.5109Enthalpy(Gcal/hr)-0.863-0.863表2-33 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00-0.863-0.86302.2.3 E0201甲醇预热器表2-34 热负荷表WQHeat Duty(Gcal/hr)0.1880表2-35 流股焓变计算表inout物流编号02040205Temperature()25300Pressure(MPa)0.11Vapor Frac01Mole Flow(kmol/hr)15.1675215.16752Mass Flow(kg/hr)486486Volume Flow(l/min)616.510970047.92Enthalpy(Gcal/hr)-0.863-0.675表2-36 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.1880-0.863-0.67502.2.4 R0201 甲醇硫化氢反应器表2-37 热负荷表WQHeat Duty(Gcal/hr)-0.1210表2-38 流股焓变计算表inout物流编号02080209Temperature()300360Pressure(MPa)11Vapor Frac11Mole Flow(kmol/hr)48.6104148.61041Mass Flow(kg/hr)1608.5491608.549Volume Flow(l/min)227826252366Enthalpy(Gcal/hr)-0.855-0.975表2-39 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error-0.1210-0.855-0.97502.2.5 E0202粗产品冷凝器表2-40热负荷表WQHeat Duty(Gcal/hr)0-0.387表2-41流股焓变计算表inout物流编号02090210Temperature()36060Pressure(MPa)11Vapor Frac10.4254523Mole Flow(kmol/hr)48.6104148.61041Mass Flow(kg/hr)1608.5491608.549Volume Flow(l/min)25236654365.85Enthalpy(Gcal/hr)-0.975-1.362表2-42 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error-0.387-0.975-1.36202.2.6 V0203气液分离器表2-43 热负荷表WQHeat Duty(Gcal/hr)-0.0440表2-44流股焓变计算表inout物流编号021002140211Temperature()303030Pressure(MPa)111Vapor Frac0.425452310Mole Flow(kmol/hr)48.6104117.2738631.33655Mass Flow(kg/hr)1608.549604.30351004.245Volume Flow(l/min)54365.8540093.421136.622Enthalpy(Gcal/hr)-1.362-0.091-1.315表2-45 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error0.0440-1.362-0.40602.2.7 T0201 甲醇吸收塔表2-46 热负荷表WQHeat Duty(Gcal/hr)00表2-47流股焓变计算表inout物流编号0215023502130218Temperature()56.4319524.9991648.2983151.73968Pressure(MPa)10.60.60.6Vapor Frac1001Mole Flow(kmol/hr)19.9359322.8122725.335317.41274Mass Flow(kg/hr)704.3035682.3572808.6251578.0266Volume Flow(l/min)51179.09847.69451028.56375469.54Enthalpy(Gcal/hr)-0.10-1.34-1.289-0.151表2-48 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00-1.44-1.4402.2.8 T0102 汽提塔表2-49 热负荷表WCondenserReboilerQHeat Duty(Gcal/hr)0-0.1530.1710.018表2-50流股焓变计算表inout物流编号021202170220Temperature()36.4503-23.3005538.93143Pressure(MPa)0.60.10.1Vapor Frac0.0046265510Mole Flow(kmol/hr)56.671852.66206854.00978Mass Flow(kg/hr)1812.8711001712.871Volume Flow(l/min)3216.62854475.662035.323Enthalpy(Gcal/hr)-2.60-0.015-2.57表2-51 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00.018-2.60-2.6202.2.9 C0203循环气体压缩机表2-52 热负荷表WQHeat Duty(Gcal/hr)0.0080表2-53 流股焓变计算表inout物流编号02180219Temperature()51.74109.51Pressure(MPa)0.61Vapor Frac11Mole Flow(kmol/hr)17.4117.41Mass Flow(kg/hr)578.03578.03Volume Flow(l/min)75469.5453241.78Enthalpy(Gcal/hr)-0.151-0.142表2-54 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00.008-0.151-0.14202.2.10 E0203循环气体加热器表2-55 热负荷表WQHeat Duty(Gcal/hr)0.031表2-56流股焓变计算表inout物流编号02190220Temperature()109.51300Pressure(MPa)11Vapor Frac11Mole Flow(kmol/hr)17.4127417.41274Mass Flow(kg/hr)578.0266578.0266Volume Flow(l/min)53241.7882064.25Enthalpy(Gcal/hr)-0.142-0.111表2-57 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error-0.031-0.142-0.11102.2.11 T0203 粗分塔表2-58 热负荷表WCondenserReboilerQHeat Duty(Gcal/hr)0-17.0517.680.53表2-59流股焓变计算表inout物流编号0221022202240240Temperature()39.721412566.2882153.5363Pressure(MPa)0.70.70.60.6Vapor Frac0010Mole Flow(kmol/hr)54.00978183.116615.6163221.5101Mass Flow(kg/hr)1712.87133007504262.871Volume Flow(l/min)2037.3273309.14767926.154960.605Enthalpy Gcal/hr-2.57-12.50-0.09-14.36表2-60 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00.53-15.07-14.4502.2.12 T0204 甲硫醇精制塔表2-61热负荷表WCondenserReboilerQHeat Duty(Gcal/hr)0-0.1370.2370.100表2-62流股焓变计算表inout物流编号022502260227Temperature()062.68404108.366Pressure(MPa)0.60.60.6Vapor Frac010Mole Flow(kmol/hr)15.616315.205560.4107442Mass Flow(kg/hr)750731.526618.47339Volume Flow(l/min)839.043165309.7725.84827Enthalpy(Gcal/hr)-0.194-0.078-0.015表2-63 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00.101-0.194-0.09302.2.13T0204 甲醇回收塔表2-64热负荷表WCondenserReboilerQHeat Duty(Gcal/hr)0-1.311.650.34表2-65流股焓变计算表inout物流编号022502260227Temperature()6073.8807399.60013Pressure(MPa)0.60.10.1Vapor Frac010Mole Flow(kmol/hr)221.510122.79228198.7169Mass Flow(kg/hr)4262.871681.71643581.137Volume Flow(l/min)4526.626498173737.506Enthalpy(Gcal/hr)-14.76-1.12-13.30表2-66 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00.34-14.7614.4202.3氢气低烃回收利用工段热量衡算2.3.1 C0301 压缩机表2-67 热负荷表WQHeat Duty(Gcal/hr)03.451表2-68 流股焓变计算表inout物流编号03040305Temperature()40157.9306Pressure(MPa)0.82Vapor Frac11Mole Flow(kmol/hr)3672.7273672.727Mass Flow(kg/hr)24349.5424349.54Volume Flow(cum/hr)119994006646170Enthalpy(Gcal/hr)-12.935-9.484表2-69 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error03.451-12.935-9.48402.3.2 C0302压缩机表2-70 热负荷表WQHeat Duty(Gcal/hr)01.40表2-71 流股焓变计算表inout物流编号03060307Temperature()4088.63622Pressure(MPa)23Vapor Frac11Mole Flow(kmol/hr)3672.7273672.727Mass Flow(kg/hr)24349.5424349.54Volume Flow(cum/hr)48282303739150Enthalpy(Gcal/hr)-12.94-11.54表2-72 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error01.40-12.94-11.5402.3.3 C0303 压缩机表2-73 热负荷表WQHeat Duty(Gcal/hr)00.975表2-74 流股焓变计算表inout物流编号03070308Temperature()4074.20172Pressure(MPa)34Vapor Frac11Mole Flow(kmol/hr)3672.7273672.727Mass Flow(kg/hr)24349.5424349.54Volume Flow(cum/hr)32350002694480Enthalpy(Gcal/hr)-12.948-11.974表2-75热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00.975-12.948-11.97402.3.4 T0301 丁烷吸收塔表2-76 热负荷表WQHeat Duty(Gcal/hr)00表2-77流股焓变计算表inout物流编号031203170314031619Temperature()-15-100-23.40951-24.68496-12.66744Pressure(MPa)43.943.93.9Vapor Frac10010Mole Flow(kmol/hr)3672.72764.118321720.9123414.9152042.841Mass Flow(kg/hr)24349.543340.40210000018395.19109295Volume Flow(l/min)20024805058.0441623581846000187935Enthalpy(Gcal/hr)-14.52-2.38-65.04-10.44-71.51表2-78 热量平衡计算一览表W(Gcal/hr)Q(Gcal/hr)Hin(Gcal/hr)Hout(Gcal/hr)Error00-81.93-81.9502.3.5 T0303 脱甲烷塔表2-79 热负荷表WCondenserReboilerQHea