附录一 能量衡算一览表

2018年“东华科技-陕鼓杯”第十二届全国大学生化工设计竞赛 京博4.5万吨异丁烯资源化利用项目能量衡算一览表重庆三峡学院“今烯何烯”团队 团队成员：崔朦、艾星宇、刘玺、程远其、肖洋 指导老师：谢永生、赖庆轲、陈星、黄美英、梁克中 京博4.5万吨异丁烯资源化利用项目能量衡算一览表目录1. 概述12. 能量衡算原理23. 能量衡算任务24. 能量衡算一览表34.1. MAL合成与分离工段34.1.1. 混合器能量衡算34.1.2. 分流器能量衡算44.1.3. 压缩机能量衡算54.1.4. 泵能量衡算64.1.5. 换热器能量衡算64.1.6. 相分离器能量衡算124.1.7. 反应器能量衡算124.1.8. 冷却塔能量衡算134.1.9. 脱水塔能量衡算144.2. MMA合成工段154.2.1. 混合器能量衡算154.2.2. 压缩机能量衡算164.2.3. 反应器能量衡算174.2.4. 泵能量衡算174.2.5. 换热器能量衡算184.2.6. 相分离器能量衡算214.3. MMA提纯精制工段224.3.1. 混合器能量衡算224.3.2. 分流器能量衡算244.3.3. 泵能量衡算254.3.4. 塔设备能量衡算284.3.5. 换热器能量衡算311. 概述本项目是为山东京博石油化工有限公司新建一个以异丁烯为原料生产甲基丙烯酸甲酯的分厂。先将异丁烯氧化成甲基丙烯醛MAL，再用直接酯化法（Asahi法）将MAL直接与甲醇和氧气进行酯化反应制得MMA。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全模拟流程如图所示。第一工段第二工段第三工段2. 能量衡算原理本厂所需主要设备有压缩机、泵、换热器、反应器、精馏塔等。输入整个生产系统的能量主要有电能、加热介质带入的能量和进入物料的焓，输出的能量有汽轮机输出的轴功、冷却剂带走的能量和输出物料的焓。 系统的能量衡算是以能量守恒为理论基础，根据能量守恒定律：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：Q+W=HoutHinQ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。3. 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，确定加热剂和冷却剂的用量，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。4. 能量衡算一览表4.1. MAL合成与分离工段4.1.1. 混合器能量衡算混合器MXIER1物流焓变计算表INOUTStream No.010501030106Temperature C112.24428.0044485.94995Pressure bar2.52.52.5Vapor Frac111Mole Flow kmol/hr791.684111.3778903.0618Mass Flow kg/hr22840.4625029090.4Volum Flow cum/hr10147.151115.51410785Enthalpy kJ/kg88.4809-307.4923.407112Entropy J/(kgK)148.1162-4614.282-771.4494Hin（kW）27.5317327Hout（kW）27.5317327能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error0027.531732727.53173270混合器MXIER2物流焓变计算表INOUTStream No.011701180119Temperature C-21.1047559.6240550.28459Pressure bar111Vapor Frac001.92457E-05Mole Flow kmol/hr155.07621065.1841220.26Mass Flow kg/hr2940.82124848.9527789.77Volum Flow cum/hr2.88077127.8026431.20934Enthalpy kJ/kg-15063.38-11505.56-11882.06Entropy J/(kgK)-9330.227-6996.576-7226.799Hin（kW）-91722.1841Hout（kW）-91722.1841能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-91722.1841-91722.184104.1.2. 分流器能量衡算分流器FSPLIT1物流焓变计算表INOUTStream No.012401260125Temperature C99.940499.940499.9404Pressure bar1.013251.013251.01325Vapor Frac0.11413870.11413870.1141387Mole Flow kmol/hr1110.1241002.135107.9886Mass Flow kg/hr20122.2918164.871957.418Volum Flow cum/hr3898.5143519.282379.2324Enthalpy kJ/kg-15173.32-15173.32-15173.32Entropy J/(kgK)-7368.812-7368.812-7368.812Hin（kW）-84811.6264Hout（kW）-84811.6264能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-84811.6264-84811.62641.72E-164.1.3. 压缩机能量衡算压缩机C0101物流焓变计算表INOUTStream No.01040105Temperature C25112.244Pressure bar1.013252.5Vapor Frac11Mole Flow kmol/hr791.684791.684Mass Flow kg/hr22840.422840.4Volum Flow cum/hr19368.5610147.15Enthalpy kJ/kg-2.712E-1488.4809Entropy J/(kgK)148.1162148.1162Hin（kW）-1.72E-13Hout（kW）561.371946能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-1.72E-13561.371946-14.1.4. 泵能量衡算泵P0101物流焓变计算表INOUTStream No.01200121Temperature C48.8865649.03935Pressure bar15Vapor Frac00Mole Flow kmol/hr1220.261220.26Mass Flow kg/hr27789.7727789.77Volum Flow cum/hr30.5266230.53231Enthalpy kJ/kg-11887.1-11886.55Entropy J/(kgK)-7242.292-7240.599Hin（kW）-91761.0581Hout（kW）-91756.8183能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-91761.0581-91756.8183-4.62E-054.1.5. 换热器能量衡算换热器E0101物流焓变计算表INOUTStream No.01010102Temperature C2828.00444Pressure bar3.3185283.318528Vapor Frac01Mole Flow kmol/hr111.3778111.3778Mass Flow kg/hr62506250Volum Flow cum/hr10.69262840.3685Enthalpy kJ/kg-665.6817-307.492Entropy J/(kgK)-5845.644-4656.247Hin（kW）-1155.69741Hout（kW）-533.840213能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-1155.69741-533.840213-0.5381换热器E0102物流焓变计算表INOUTStream No.0109010601070110Temperature C35085.94995200248.8706Pressure bar2.52.52.52.5Vapor Frac1111Mole Flow kmol/hr903.0618903.0618903.0618903.0618Mass Flow kg/hr29090.429090.429090.429090.4Volum Flow cum/hr18715.321078514210.3115678.06Enthalpy kJ/kg-911.25283.407112144.2726-1052.118Entropy J/(kgK)60.18519-771.4494-431.4542-186.2136Hin（kW）-7335.99848Hout（kW）-7335.99848能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-7335.99848-7335.998481.24E-16换热器E0103物流焓变计算表INOUTStream No.01070108Temperature C200350Pressure bar2.52.5Vapor Frac11Mole Flow kmol/hr903.0618903.0618Mass Flow kg/hr29090.429090.4Volum Flow cum/hr14210.3118715.32Enthalpy kJ/kg144.2726347.0812Entropy J/(kgK)-431.4542-59.92777Hin（kW）1165.81909Hout（kW）2804.64742能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error001165.819092804.64742-0.584换热器E0104物流焓变计算表INOUTStream No.01100111Temperature C248.8706183Pressure bar2.52.5Vapor Frac11Mole Flow kmol/hr903.0618903.0618Mass Flow kg/hr29090.429090.4Volum Flow cum/hr15678.0613699.74Enthalpy kJ/kg-1052.118-1138.32Entropy J/(kgK)-186.2136-362.6291Hin（kW）-8501.81757Hout（kW）-9198.38601能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-8501.81757-9198.386010.07573换热器E0105物流焓变计算表INOUTStream No.01110112Temperature C183136Pressure bar2.52.5Vapor Frac11Mole Flow kmol/hr903.0618903.0618Mass Flow kg/hr29090.429090.4Volum Flow cum/hr13699.7412288.17Enthalpy kJ/kg-1138.32-1197.095Entropy J/(kgK)-362.6291-498.5641Hin（kW）-9198.38601Hout（kW）-9673.32654能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-9198.38601-9673.326540.0491换热器E0106物流焓变计算表INOUTStream No.01120113Temperature C13690Pressure bar2.52.5Vapor Frac11Mole Flow kmol/hr903.0618903.0618Mass Flow kg/hr29090.429090.4Volum Flow cum/hr12288.1710906.64Enthalpy kJ/kg-1197.095-1252.449Entropy J/(kgK)-498.5641-642.0268Hin（kW）-9673.32654Hout（kW）-10120.6208能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-9673.32654-10120.62080.0442换热器E0107物流焓变计算表INOUTStream No.01260114Temperature C99.940428Pressure bar1.013251.01325Vapor Frac0.11413870Mole Flow kmol/hr1002.1351002.134Mass Flow kg/hr18164.8718164.84Volum Flow cum/hr3519.28218.36194Enthalpy kJ/kg-15173.32-15738.42Entropy J/(kgK)-7368.812-8965.924Hin（kW）-76561.4793Hout（kW）-79412.742能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-76561.4793-79412.7420.0359换热器E0108物流焓变计算表INOUTStream No.01190120Temperature C50.2845948.88656Pressure bar11Vapor Frac1.92457E-050Mole Flow kmol/hr1220.261220.26Mass Flow kg/hr27789.7727789.77Volum Flow cum/hr31.2093430.52662Enthalpy kJ/kg-11882.06-11887.1Entropy J/(kgK)-7226.799-7242.292Hin（kW）-91722.1841Hout（kW）-91761.0581能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-91722.1841-91761.05810.0004244.1.6. 相分离器能量衡算相分离器V0102物流焓变计算表INOUTStream No.011501160117Temperature C58.1125-21.10475-21.10475Pressure bar111Vapor Frac110Mole Flow kmol/hr840.0116684.9354155.0762Mass Flow kg/hr22406.2819465.462940.821Volum Flow cum/hr23135.8114353.422.880771Enthalpy kJ/kg-1625.612-61.07755-15063.38Entropy J/(kgK)5.621801-103.231-9330.227Hin（kW）-10117.759Hout（kW）-12635.4494能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-10117.759-12635.44940.19934.1.7. 反应器能量衡算反应器R0101物流焓变计算表INOUTStream No.01080109Temperature C350350Pressure bar2.52.5Vapor Frac11Mole Flow kmol/hr903.0618903.0618Mass Flow kg/hr29090.429090.4Volum Flow cum/hr18715.3218715.32Enthalpy kJ/kg347.0812-911.2528Entropy J/(kgK)-59.9277760.18519Hin（kW）2804.64742Hout（kW）-7363.53021能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error002804.64742-7363.530211.3814.1.8. 冷却塔能量衡算冷却塔T0101物流焓变计算表INOUTStream No.0113011401180115Temperature C902859.6240558.1125Pressure bar2.51.0132511Vapor Frac1001Mole Flow kmol/hr903.06181002.1341065.184840.0116Mass Flow kg/hr29090.418164.8424848.9522406.28Volum Flow cum/hr10906.6418.3619427.8026423135.81Enthalpy kJ/kg-1252.449-15738.42-11505.56-1625.612Entropy J/(kgK)-642.0268-8965.924-6996.5765.621801Hin（kW）-89533.3628Hout（kW）-89534.7445能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-89533.3628-89534.74451.54E-054.1.9. 脱水塔能量衡算脱水塔T0102物流焓变计算表INOUTStream No.012101230122Temperature C49.03935153.2774-22.42557Pressure bar55.194.8Vapor Frac000Mole Flow kmol/hr1220.261110.124110.1363Mass Flow kg/hr27789.7720122.297667.489Volum Flow cum/hr30.5323123.479088.722017Enthalpy kJ/kg-11886.55-15173.32-2132.749Entropy J/(kgK)-7240.599-7435.784-4268.48Hin（kW）-91756.8183Hout（kW）-89354.0788能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-91756.8183-89354.0788-0.02624.2. MMA合成工段4.2.1. 混合器能量衡算混合器MXIER3物流焓变计算表INOUTStream No.011602120213Temperature C-21.1047563.8292-1.120088Pressure bar131Vapor Frac111Mole Flow kmol/hr684.9354210.087895.0224Mass Flow kg/hr19465.465915.93425381.4Volum Flow cum/hr14353.421962.04220243.14Enthalpy kJ/kg-61.077554.363405-45.82448Entropy J/(kgK)-103.231-204.8909-39.48776Hin（kW）-323.080343Hout（kW）-323.080343能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-323.080343-323.0803430混合器MXIER4物流焓变计算表INOUTStream No.021602150217Temperature C-15.174227065.91853Pressure bar333Vapor Frac003.5925E-05Mole Flow kmol/hr143.8572333.9612477.818Mass Flow kg/hr4981.57980230.7385212.31Volum Flow cum/hr5.812737105.8437112.4989Enthalpy kJ/kg-7149.275-7046.602-7052.604Entropy J/(kgK)-7407.315-6671.754-6709.517Hin（kW）-166935.735Hout（kW）-166935.735能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-166935.735-166935.735-1.74E-164.2.2. 压缩机能量衡算压缩机C0201物流焓变计算表INOUTStream No.02030204Temperature C25132.6292Pressure bar1.013253Vapor Frac11Mole Flow kmol/hr265.1245265.1245Mass Flow kg/hr76497649Volum Flow cum/hr6486.2742981.574Enthalpy kJ/kg-2.712E-14109.261Entropy J/(kgK)148.1343148.1343Hin（kW）-5.7623E-14Hout（kW）232.149244能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-5.7623E-14232.149244-14.2.3. 反应器能量衡算反应器R0201物流焓变计算表INOUTStream No.0205020202080209Temperature C70707070Pressure bar34.833Vapor Frac1000.1316803Mole Flow kmol/hr265.1245110.136323662687.905Mass Flow kg/hr76497667.48975811.7591128.24Volum Flow cum/hr2521.3899.9107102.87743471.925Enthalpy kJ/kg45.56119-1963.952-7296.783-6526.331Entropy J/(kgK)-22.35737-3707.671-7073.077-6080.852Hin（kW）-157747.762Hout（kW）-165093.074能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-157747.762-165203.6160.0454.2.4. 泵能量衡算泵P0201物流焓变计算表INOUTStream No.02060207Temperature C2525.11113Pressure bar1.013253Vapor Frac00Mole Flow kmol/hr23662366Mass Flow kg/hr75811.7575811.75Volum Flow cum/hr95.6107595.62669Enthalpy kJ/kg-7440.191-7439.878Entropy J/(kgK)-7497.782-7496.782Hin（kW）-156681.643Hout（kW）-156675.047能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-156681.643-156675.047-4.21E-054.2.5. 换热器能量衡算换热器E0201物流焓变计算表INOUTStream No.01220202Temperature C-22.4255770Pressure bar4.84.8Vapor Frac00Mole Flow kmol/hr110.1363110.1363Mass Flow kg/hr7667.4897667.489Volum Flow cum/hr8.7220179.9107Enthalpy kJ/kg-2132.749-1963.952Entropy J/(kgK)-4268.48-3707.671Hin（kW）-4542.45237Hout（kW）-4182.93963能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-4542.45237-4182.93963-0.079换热器E0202物流焓变计算表INOUTStream No.0204021102050212Temperature C132.6292-15.174227063.8292Pressure bar3333Vapor Frac1111Mole Flow kmol/hr265.1245210.087265.1245210.087Mass Flow kg/hr76495915.93476495915.934Volum Flow cum/hr2981.5741502.0492521.3891962.042Enthalpy kJ/kg109.261-77.9971845.561194.363405Entropy J/(kgK)148.1343-483.3764-22.35737-204.8909Hin（kW）103.975318Hout（kW）103.975318能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00103.975318103.9753184.1E-16换热器E0203物流焓变计算表INOUTStream No.02070208Temperature C25.1111370Pressure bar33Vapor Frac00Mole Flow kmol/hr23662366Mass Flow kg/hr75811.7575811.75Volum Flow cum/hr95.62669102.8774Enthalpy kJ/kg-7439.878-7296.783Entropy J/(kgK)-7496.782-7073.077Hin（kW）-156675.047Hout（kW）-153661.627能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-156675.047-153661.627-0.019换热器E0204物流焓变计算表INOUTStream No.0217021303010214Temperature C65.91853-1.1200886330.41413Pressure bar3131Vapor Frac3.5925E-05101Mole Flow kmol/hr2477.818895.02242477.818895.0224Mass Flow kg/hr85212.3125381.485212.3125381.4Volum Flow cum/hr112.498920243.14111.112122589.76Enthalpy kJ/kg-7052.604-45.82448-7062.312-13.2321Entropy J/(kgK)-6709.517-39.48776-6736.86373.87213Hin（kW）-167258.815Hout（kW）-167258.815能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-167258.815-167258.815-1.74E-164.2.6. 相分离器能量衡算气液分离设备V0202物流焓变计算表INOUTStream No.020902100215Temperature C707070Pressure bar333Vapor Frac0.131680310Mole Flow kmol/hr2687.905353.9442333.961Mass Flow kg/hr91128.2410897.5180230.73Volum Flow cum/hr3471.9253366.081105.8437Enthalpy kJ/kg-6526.331-2695.941-7046.602Entropy J/(kgK)-6080.852-1730.451-6671.754Hin（kW）-165203.616Hout（kW）-165203.616能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-165203.616-165203.6161.66E-12气液分离设备V0203物流焓变计算表INOUTStream No.021002160211Temperature C70-15.17422-15.17422Pressure bar333Vapor Frac101Mole Flow kmol/hr353.944143.857210.087Mass Flow kg/hr10897.514981.5795915.934Volum Flow cum/hr3366.0815.8127371502.049Enthalpy kJ/kg-2695.941-7149.275-77.99718Entropy J/(kgK)-1730.451-7407.315-483.3764Hin（kW）-8160.84696Hout（kW）-10021.1401能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-8160.84696-10021.14010.1864.3. MMA提纯精制工段4.3.1. 混合器能量衡算混合器MXIER5物流焓变计算表INOUTStream No.031703180319Temperature C33.691152533.52654Pressure bar1.013251.013251.01325Vapor Frac000Mole Flow kmol/hr972.518919.002991.5209Mass Flow kg/hr83810.171637.53885447.71Volum Flow cum/hr129.03262.490031131.5224Enthalpy kJ/kg-2283.004-2303.271-2283.392Entropy J/(kgK)-7500.03-7567.354-7501.302Hin（kW）-54197.4034Hout（kW）-54197.4034能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-54197.4034-54197.4034-1.34E-16混合器MXIER6物流焓变计算表INOUTStream No.032403250326Temperature C116.970325100.0176Pressure bar1.81.013251.01325Vapor Frac000.0338677Mole Flow kmol/hr995.90894.9921000.901Mass Flow kg/hr17941.8889.9322818031.82Volum Flow cum/hr19.933680.0904791056.958Enthalpy kJ/kg-15462.25-15864.32-15464.25Entropy J/(kgK)-7897.338-9055.611-7893.243Hin（kW）-77457.9472Hout（kW）-77457.9472能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-77457.9472-77457.9472-3.76E-16混合器MXIER7物流焓变计算表INOUTStream No.030801250309Temperature C60.0542599.940460.00664Pressure bar0.21.013250.2Vapor Frac00.11413870.092622Mole Flow kmol/hr106.709107.9886214.6976Mass Flow kg/hr1938.6811957.4183896.099Volum Flow cum/hr2.022324379.23242757.835Enthalpy kJ/kg-15596.42-15173.32-15383.85Entropy J/(kgK)-8542.467-7368.812-7893.044Hin（kW）-16649.1679Hout（kW）-16649.1679能量平衡计算表Q(kW)W(kW)Hin（kW）Hout（kW）Error00-16649.1679-16649.1679-2.185E-164.3.2. 分流器能量衡算分流器FSPLIT2物流焓变计算表INOUTStream No.031103120313Temperature C25.2295525.2295525.22955Pressure bar0.20.20.2Vapor Frac000Mole Flow kmol/hr121.511419.6586101.8528Mass Flow kg/hr10515.181701.1878813.99Volum Flow cum/hr15.809122.55766213.25145Enthalpy kJ/kg-2361.237-2361.237-2361.237Entropy J/(kgK)-