7-2 附录二 能量衡算一览表

茂名石化8万吨/年MMA生产项目 能量衡算一览表WORTH DOING 461.概述本项目以总厂在珠海(茂名)产业转移工业园的茂名石化总厂乙烯厂裂解装置的裂解碳四经过深度溶剂抽提(乙腈或者DMF)分离出丁二烯后的抽余碳四以及甲醇为原料，将抽余碳四进行预处理得到异丁烯，再采用异丁烯直接氧化法，首先将异丁烯氧化制成甲基丙烯醛，后与甲醇及氧气发生氧化酯化反应生成甲基丙烯酸甲酯并副产醚后碳四。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 全厂工艺流程图第二章 能量衡算原理系统的能量衡算能量守恒为理论基础，研究某一系统内各类型的能量的变化，即：输入系统的能量=输出系统的能量+系统积累的能量对于连续系统，有：Q+W=Hout-Hin注：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。本项目的能量衡算以单元设备为对象，计算由机械能转换、化学反应释放能量和单纯的物理变化带来的热量变化。第三章 能量衡算任务（1）确定流程中机械所需的功率，为设备设计和选型提供依据。（2）确定精馏各单元操作中所需的热量或冷量及传递速率，确定加热剂和冷剂的用量，为后续换热和公用工程的设计做准备。（3）确定反应过程中的热交换量，指导反应器的设计和选型。（4）最终计算出所需的能量和费用，判定工艺过程的经济性。第四章 能量衡算表4.1原料预处理工段4.1.1混合器(V0102、V0104)表4-1 混合器(V0102) 物流焓变计算表InOutStream No.0103014401020104Temperature C30333025.2Pressure bar7.28117.2Vapor Frac0000Mole Flow kmol/hr300.067114.3137.355421.734Mass Flow kg/hr168753749.195235.66420859.86Volume Flow l/min484.56979.6644.991550.122Enthalpy MMBtu/hr-13.364-25.987-1.659-41.009Enthalpy J/kg-835520-7312900-7425900-2074200Entropy J/kg-K-5819.08-7420.67-7452.47-6109.82Hin(kW)-12018.8Hout(kW)-12018.8表4-2能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-12018.8-12018.82.56910-16表4-3 混合器(V0104)物流焓变计算表InOutStream No.013501180119Temperature C252525Pressure bar111Vapor Frac000Mole Flow kmol/hr1506.1414.2611510.402Mass Flow kg/hr27195.0376.76627271.79Volume Flow l/min456.6511.287457.938Enthalpy MMBtu/hr-407.8-1.154-408.954Enthalpy J/kg-15821000 -15864000 -15821000 Entropy J/kg-K-9040 -9056 -9040 Hin(kW)-119851.94Hout(kW)-119851.94表4-4能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-119851.94-119851.94-1.75410-164.1.2分流器(V0105)表 4-5 分流器(V0105)物流焓变计算表OutInStream No.012901280127Temperature C63.963.963.9Pressure bar1.11.11.1Vapor Frac000Mole Flow kmol/hr129.731590.154719.886Mass Flow kg/hr4333.34119712.6724046.06Volume Flow l/min97.02441.351538.373Enthalpy MMBtu/hr-28.934-131.625-160.56Enthalpy J/kg-7044800-7044800-7044800 Entropy J/kg-K-7101.159-7101.159-7101 Hin(kW)-47055.468Hout(kW)-47055.468表4-6 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-47055.468-47055.468-1.74110-164.1.3换热器(E0101+E0113)表 4-7 换热器(E0101+)物流焓变计算表InOutStream No.01040105Temperature C25.256.3Pressure bar7.27.2Vapor Frac00.044Mole Flow kmol/hr421.734421.734Mass Flow kg/hr20859.8620859.86Volume Flow l/min550.1221572.045Enthalpy MMBtu/hr-41.009-39.022Enthalpy J/kg-2074200-1973700 Entropy J/kg-K-6109.822-5796 Hin(kW)-11436.418Hout(kW)-11436.418表4-8 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-11436.418-11436.418-1.67610-16表 4-9 换热器(E0101)物流焓变计算表InOutStream No.01160117Temperature C188.191Pressure bar1.51.5Vapor Frac11Mole Flow kmol/hr256.377256.377Mass Flow kg/hr11445.0211445.02Volume Flow l/min108241.984688.53Enthalpy MMBtu/hr-23.825-25.812Enthalpy J/kg-2196300-2379500Entropy J/kg-K-3545.735-3990Hin(kW)-7564.8403Hout(kW)-7564.8403表4-10 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-7564.8403-7564.84035.93410-2表 4-11 换热器(E0102+)物流焓变计算表InOutStream No.01050106Temperature C56.372Pressure bar7.27.2Vapor Frac0.0440Mole Flow kmol/hr421.734421.734Mass Flow kg/hr20859.8620859.86Volume Flow l/min1572.045614.529Enthalpy MMBtu/hr-39.022-38.445Enthalpy J/kg-1973700-1944500Entropy J/kg-K-5795.909-5712.569Hin(kW)-11267.222Hout(kW)-11267.222表4-12 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-11267.222-11267.222-1.87910-2表 4-13 换热器(E0102)物流焓变计算表InOutStream No.01330134Temperature C103.698.5Pressure bar1.171.17Vapor Frac00Mole Flow kmol/hr1506.1411506.141Mass Flow kg/hr27195.0327195.03Volume Flow l/min496.438493.551Enthalpy MMBtu/hr-399.151-399.728Enthalpy J/kg-15485000-15508000 Entropy J/kg-K-8047.357-8106.62Hin(kW)-117150.15Hout(kW)-117150.15表4-14 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-11267.222-11267.222-1.87910-2表 4-15 换热器(E0106+)物流焓变计算表InOutStream No.01130114Temperature C104.2190Pressure bar44Vapor Frac0.3051Mole Flow kmol/hr129.982129.982Mass Flow kg/hr11444.0311444.03Volume Flow l/min4898.82119757.12Enthalpy MMBtu/hr-35.458-31.421Enthalpy J/kg-3269000-2896800Entropy J/kg-K-6556.785-5618.139Hin(kW)-9208.6295Hout(kW)-9208.6295表4-16 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-9208.6295-9208.62951.12610-16表 4-17 换热器(E0107)物流焓变计算表InOutStream No.01340135Temperature C98.525Pressure bar1.171Vapor Frac00Mole Flow kmol/hr1506.1411506.141Mass Flow kg/hr27195.0327195.03Volume Flow l/min493.551456.651Enthalpy MMBtu/hr-399.728-407.8Enthalpy J/kg-15508000-15821000Entropy J/kg-K-8106.62-9040.097Hin(kW)-119514.6Hout(kW)-119514.6表4-18 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-119514.6-119514.6-9.91810-16表 4-19 换热器(E0108)物流焓变计算表InOutStream No.01260127Temperature C65.965.9Pressure bar1.11.1Vapor Frac0.1580.158Mole Flow kmol/hr719.886719.886Mass Flow kg/hr24046.0624046.06Volume Flow l/min48135.7148135.71Enthalpy MMBtu/hr-156.654-156.654Enthalpy J/kg-6873400-7044800Entropy J/kg-K-6595.784-7101.159Hin(kW)-47055.468Hout(kW)-47055.468表4-20 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-47055.468-47055.468-4.4510-16表 4-21 换热器(E0109)物流焓变计算表InOutStream No.01300131Temperature C102103Pressure bar1.151.15Vapor Frac00.294Mole Flow kmol/hr2222.9052222.905Mass Flow kg/hr40324.740324.7Volume Flow l/min737.259294000.8Enthalpy MMBtu/hr-588.742-563.592Enthalpy J/kg-15404000-14746000Entropy J/kg-K-8040.029-6289.238Hin(kW)-165174.45Hout(kW)-165174.45表4-22 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-165174.45-165174.459.10710-16表 4-23 换热器(E0111)物流焓变计算表InOutStream No.01360137Temperature C62.449.8Pressure bar11Vapor Frac10Mole Flow kmol/hr59.75559.755Mass Flow kg/hr2263.9812263.981Volume Flow l/min27353.9449.917Enthalpy MMBtu/hr-10.795-12.85Enthalpy J/kg-5030800-5988100Entropy J/kg-K-4215.783-7085.728Hin(kW)-3765.818Hout(kW)-3765.818表4-24 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-3765.818-3765.8181.53610-16表 4-25 换热器(E0113)物流焓变计算表InOutStream No.01430144Temperature C75.733Pressure bar88Vapor Frac00Mole Flow kmol/hr114.313114.313Mass Flow kg/hr3749.1953749.195Volume Flow l/min85.58579.664Enthalpy MMBtu/hr-25.498-25.987Enthalpy J/kg-7175500-7312900Entropy J/kg-K-7017.542-7420.665Hin(kW)-7615.9689Hout(kW)-7615.9689表4-26 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-7615.9689-7615.9689-8.44110-74.1.4反应器(R0101、R0102)表 4-27 MTBE合成反应器(R0101)物流焓变计算表InOutStream No.01070108Temperature C72.472Pressure bar1111Vapor Frac00Mole Flow kmol/hr421.734315.407Mass Flow kg/hr20859.8620859.86Volume Flow l/min615.166593.151Enthalpy MMBtu/hr-38.423-42.637Enthalpy J/kg-1943400-2156500Entropy J/kg-K-5711.349-6161.211Hin(kW)-12495.636Hout(kW)-12495.636表4-28 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-12495.636-12495.636-8.44110-7表 4-29 MTBE合成反应器(R0102)物流焓变计算表InOutStream No.01140115Temperature C190190Pressure bar44Vapor Frac11Mole Flow kmol/hr129.982256.377Mass Flow kg/hr11444.0311445.02Volume Flow l/min19757.1240128.46Enthalpy MMBtu/hr-31.421-23.825Enthalpy J/kg-2896800-2196300Entropy J/kg-K-5618.139-3725.558Hin(kW)-6982.416Hout(kW)-6982.416表4-30 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-6982.416-6982.416-1.51310-164.1.5压缩机(C0101)表4-31 一级压缩机(C0101)物流焓变计算表InOutStream No.01230124Temperature C64.2199.5Pressure bar15.25Vapor Frac11Mole Flow kmol/hr719.886719.886Mass Flow kg/hr24046.0624046.06Volume Flow l/min331846.487184.26Enthalpy MMBtu/hr-136.445-131.504Enthalpy J/kg-5986700-5769900Entropy J/kg-K-3961.307-3828.171Hin(kW)-39987.93Hout(kW)-38539.823表4-32 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error1448.1070-38539.823-38539.8233.72310-74.1.6塔设备(T0101T0104)表4-33 MTBE反应精馏塔(T0101)物流焓变计算表InOutStream No.0110010801110112Temperature C30.97252.2135.5Pressure bar8116.557.93Vapor Frac0000Mole Flow kmol/hr20315.407184.069129.982Mass Flow kg/hr640.34520859.8610056.1811444.03Volume Flow l/min13.577593.151299.508332.488Enthalpy MMBtu/hr-4.511-42.637-11.133-35.458Enthalpy J/kg-7432100-2156500-1168000-3269000Entropy J/kg-K-7446.144-6161.211-5813.22-6568.159Hin(kW)-13654.5Hout(kW)-13491.328表4-34 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error163.1720-13654.5-13654.50冷凝器负荷(kW)-9043.417再沸器负荷(kW)9206.589表4-35 甲醇吸收塔(T0102)物流焓变计算表InOutStream No.0117012001210145Temperature C9125.173.725.3Pressure bar1.55.51.091Vapor Frac1001Mole Flow kmol/hr256.3771510.4021635.873130.906Mass Flow kg/hr11445.0227271.7931528.397188.429Volume Flow l/min84688.53457.983579.654144.1Enthalpy MMBtu/hr-25.812-408.933-431.655-3.09Enthalpy J/kg-2379500-15820000-14445000-453540Entropy J/kg-K-3990.105-9038.946-8156.031-4448.366Hin(kW)-127413Hout(kW)-127413表4-36 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-127413-1274130冷凝器负荷(kW)0再沸器负荷(kW)0表4-37 热泵精馏脱水塔(T0103)物流焓变计算表InOutStream No.01220128013201230130Temperature C71.363.9103.664.2102Pressure bar1.51.11.1711.15Vapor Frac00110Mole Flow kmol/hr1635.873590.154716.765719.8862222.905Mass Flow kg/hr31528.3919712.6713129.724046.0640324.7Volume Flow l/min577.924441.351317200.7331846.4737.259Enthalpy MMBtu/hr-431.653-131.625-161.91-136.445-588.742Enthalpy J/kg-14445000-7044800-13011000-5986700-15404000Entropy J/kg-K-8159.133-7101.159-2114.836-3961.307-8040.029Hin(kW)-212536.0939Hout(kW)-212533表4-38 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error3.253240-212536凝器负荷(kW)0再沸器负荷(kW)0表4-39 甲醇回收塔(T0104) 物流焓变计算表InOutStream No.01290139014101360140Temperature C63.949.87562.475Pressure bar1.111.511.5Vapor Frac00110Mole Flow kmol/hr129.73144.33765.93559.755180.248Mass Flow kg/hr4333.3411679.8352148.192263.9815897.384Volume Flow l/min97.0237.03820804.3327353.94134.465Enthalpy MMBtu/hr-28.934-9.534-12.511-10.795-40.184Enthalpy J/kg-7044800-5988100-6144500-5030800-7189000Entropy J/kg-K-7101.159-7085.728-3970.793-4215.783-7023.515Hin(kW)-14940.5Hout(kW)-14940.5表4-40 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-14940.5-14940.50冷凝器负荷(kW)0再沸器负荷(kW)04.2 MAL合成工段4.2.1混合器(V0201V0203)表4-41 混合器(V0201)物流焓变计算表InOutStream No.020502060207Temperature C115.255.2103.5Pressure bar222Vapor Frac111Mole Flow kmol/hr1852.78130.9061983.686Mass Flow kg/hr53453.447188.42960641.87Volume Flow l/min498496.628771.98517359.1Enthalpy MMBtu/hr4.62-2.791.83Enthalpy J/kg91188.78-40955031831.61Entropy J/kg-K219.412-4407.188-260.8572Hin(kW)536.202321Hout(kW)536.202321表4-42 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00536.202321536.2023213.72310-7表4-43 混合器(V0202)物流焓变计算表InOutStream No.0203021002520211Temperature C390390390390Pressure bar2222Vapor Frac1111Mole Flow kmol/hr3.6281983.686119.4262106.74Mass Flow kg/hr65.3560641.872226.47162933.69Volume Flow l/min1661.925911868.454712.6968276.5Enthalpy MMBtu/hr-0.78821.58-25.987-5.195Enthalpy J/kg-12714000375444-12314000-87089.2Entropy J/kg-K-1234.59413.3934-1258.801412.0096Hin(kW)-1522.4569Hout(kW)-1522.4569表4-44 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-1522.4569-1522.45690表4-45 混合器(V0203)物流焓变计算表InOutStream No.022402550225Temperature C25.12525.1Pressure bar2.52.52.5Vapor Frac000Mole Flow kmol/hr172.73117.403190.133Mass Flow kg/hr3111.788324.4393436.227Volume Flow l/min52.1835.45457.637Enthalpy MMBtu/hr-46.789-4.728-51.517Enthalpy J/kg-15864000-15374000-15818000Entropy J/kg-K-9054.74-8861.72-9035.787Hin(kW)-15098.4Hout(kW)-15098.4表4-46 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-15098.4-15098.4-1.56510-164.2.2换热器(E0201+E0212)表 4-47 换热器(E0201+)物流焓变计算表InOutStream No.02070208Temperature C103.5177.2Pressure bar22Vapor Frac11Mole Flow kmol/hr1983.6861983.686Mass Flow kg/hr60641.8760641.87Volume Flow l/min517359.1619013.8Enthalpy MMBtu/hr1.836.662Enthalpy J/kg31831.61115901Entropy J/kg-K-260.8572-57.11488Hin(kW)536.202321Hout(kW)1952.34816表4-48 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error1416.14580536.2023211952.348161.25510-1表 4-49 换热器(E0201-)物流焓变计算表InOutStream No.02120213Temperature C506.2446.5Pressure bar22Vapor Frac11Mole Flow kmol/hr2106.742106.74Mass Flow kg/hr62933.6962933.69Volume Flow l/min11376101050780Enthalpy MMBtu/hr-5.195-10.027Enthalpy J/kg-87089.2-168100Entropy J/kg-K652.2352544.0042Hin(kW)-2938.6537Hout(kW)-2938.6537表4-50 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-2938.6537-2938.65372.04210-2表 4-51 换热器(E0202+)物流焓变计算表InOutStream No.02080209Temperature C177.2283.1Pressure bar22Vapor Frac11Mole Flow kmol/hr1983.6861983.686Mass Flow kg/hr60641.8760641.87Volume Flow l/min619013.8764735.5Enthalpy MMBtu/hr6.66213.904Enthalpy J/kg115901241896Entropy J/kg-K-57.11488193.9301Hin(kW)4074.72938Hout(kW)4074.72938表4-52 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error004074.729384074.729381.04310-1表 4-53 换热器(E0202-)物流焓变计算表InOutStream No.02150216Temperature C480.7390Pressure bar22Vapor Frac11Mole Flow kmol/hr2106.742106.74Mass Flow kg/hr62933.6962933.69Volume Flow l/min1100340968243.7Enthalpy MMBtu/hr-14.49-21.731Enthalpy J/kg-242910-364320Entropy J/kg-K620.3695448.7516Hin(kW)-6368.8894Hout(kW)-6368.8894表4-54 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-6368.8894-6368.88941.03710-1表 4-55 换热器(E0203-)物流焓变计算表InOutStream No.02130214Temperature C446.5390Pressure bar22Vapor Frac11Mole Flow kmol/hr2106.742106.74Mass Flow kg/hr62933.6962933.69Volume Flow l/min1050780968275.4Enthalpy MMBtu/hr-10.027-14.49Enthalpy J/kg-168100-242910Entropy J/kg-K544.0042435.7512Hin(kW)-4246.4507Hout(kW)-4246.4507表4-56 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-4246.4507-4246.45070表 4-57 换热器(E0204-)物流焓变计算表InOutStream No.02180219Temperature C503.9446.2Pressure bar22Vapor Frac11Mole Flow kmol/hr2106.742106.74Mass Flow kg/hr62933.6962933.69Volume Flow l/min11346001050370Enthalpy MMBtu/hr-25.769-30.469Enthalpy J/kg-432000-510800Entropy J/kg-K679.1958573.8438Hin(kW)-8929.5913Hout(kW)-8929.5913表4-58 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-8929.5913-8929.59133.09610-2表 4-59 换热器(E0205)物流焓变计算表InOutStream No.02190220Temperature C446.2390Pressure bar22Vapor Frac11Mole Flow kmol/hr2106.742106.74Mass Flow kg/hr62933.6962933.69Volume Flow l/min1050370968183.2Enthalpy MMBtu/hr-30.469-34.95Enthalpy J/kg-510800-585920Entropy J/kg-K573.8438465.1331Hin(kW)-8929.5913Hout(kW)-10242.808表4-60 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error1313.2170-8929.5913-10242.8082.42810-1表 4-61 换热器(E0206)物流焓变计算表InOutStream No.0230023402310235Temperature C30.2126.150124.8Pressure bar3333Vapor Frac0101Mole Flow kmol/hr722800.235722800.235Mass Flow kg/hr2305.24187646.112305.24187646.11Volume Flow l/min48.833513109.750.381511509Enthalpy MMBtu/hr-16.243-203.405-16.114-203.535Enthalpy J/kg-7434300-2448500-7374800-2450100Entropy J/kg-K-7450.885-1167.208-7268.606-1171.13Hin(kW)-64372.9Hout(kW)-64372.9表4-62 能量平衡计算表Q(kW)W(kW)Hin(kW)Hout(kW)Error00-10242.808-10242.8082.07610-2表 4-63 换热器(E0207)物流焓变计算表InOutStream No.235236Temperature C124.873Pressure bar33Vapor Frac11Mole Flow kmol/hr2800.2352800.235Mass Flow kg