附录2能量衡算

深度脱硫年产9万吨二硫化碳项目-能量衡算 硫然而生目录第1章 总述11.1 综述11.2 热量衡算的原理与准则11.3 热量衡算任务1第2章 热量衡算22.1 炼油厂吸收解析工段22.1.1进料预热器E010122.1.2原料压缩机C010122.1.3硫化氢吸收塔T010132.1.4贫富液换热器E010432.1.5炼油厂解析塔T010242.2 燃煤烟气压缩工段42.2.1进料预热器E0201E021642.2.2原料压缩机C020152.3 电厂吸收工段52.3.1二氧化硫吸收塔T030152.3.2贫富液换热器E030262.4 二氧化硫解析工段62.4.1二氧化硫解析塔T040172.4.2二氧化硫解析塔T0401的冷凝器72.4.3二氧化硫解析塔T0401的再沸器82.5 二氧化硫脱水工段82.5.1二氧化硫脱水塔T060192.5.2二氧化硫脱水塔T0601的冷凝器92.5.3二氧化硫脱水塔T0601的再沸器102.6 克劳斯硫磺生产工段102.6.1原料加热器E0701102.6.2一级反应器R0701112.6.3硫磺换热器E0702112.6.4二级反应器R0702122.6.5硫磺换热器E0703122.6.6三级反应器R0703122.7 二硫化碳生产工段132.7.1管式反应器R0801132.7.2出口物料冷凝器E0801142.8 二硫化碳精制工段142.8.1液硫分离器V0803152.8.2二硫化碳分离塔T0801152.8.3硫化氢分离器V080516第1章 总述1.1 综述拟建一套深度脱硫年产9万吨二硫化碳装置，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。1.2 热量衡算的原理与准则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：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对二甲苯装置的热量衡算中，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。第2章 热量衡算2.1 炼油厂吸收解析工段图2-1 炼油厂吸收解析工段2.1.1进料预热器E0101表2-1 进料预热器E0101Name360Q-124Vapour11Temperature C300200Pressure kPa110110Molar Flow kgmole/h10735.9210735.92Mass Flow kg/h461058.3461058.3Std Ideal Liq Vol Flow m3/h919.2772919.2772Molar Enthalpy kJ/kgmole-63668.9-74837Molar Entropy kJ/kgmole-C-168.332-189.698Heat Flow kJ/h-6.80E+08-8.00E+081.20E+082.1.2原料压缩机C0101表2-2 进料预热器E0101Name6761Q-125Vapour1.00E+001Temperature C50190.7811Pressure kPa1102000Molar Flow kgmole/h10735.9210735.92Mass Flow kg/h461058.3461058.3续表2-2 进料预热器E0101LiqVol Flow m3/h919.2772919.27721Molar Enthalpy kJ/kgmole-88387.4-76777.8Molar Entropy kJ/kgmole-C-223.815-217.364Heat Flow kJ/h-9.50E+08-8.20E+081.25E+082.1.3硫化氢吸收塔T0101表2-3 硫化氢吸收塔T0101Name22 010173 010123 010124 0101Vapour0110Temperature C25190.772925.2401392.77638Pressure kPa2000200019982000Molar Flow kgmole/h32976.5310746.610287.6133435.52Mass Flow kg/h800000461392.6444543.3816849.3Std Ideal Liq Vol Flow m3/h794.8793919.8772893.6045821.152Molar Enthalpy kJ/kgmole-296221-76721.4-96913.2-286984Molar Entropy kJ/kgmole-C-206.002-217.115-274.871-186.364Heat Flow kJ/h-9.80E+09-8.20E+08-1.00E+09-9.60E+092.1.4贫富液换热器E0104表2-4 贫富液换热器E0104Name27292825Vapour008.49E-041.28E-03Temperature C124.3339117.390292.9004100Pressure kPa220217223220Molar Flow kgmole/h32935.5132935.5133435.5233435.52Mass Flow kg/h798993798993816849.3816849.3Std Ideal Liq Vol Flow m3/h793.711793.711821.152821.152Molar Enthalpy kJ/kgmole-287467-288138-286984-286322Molar Entropy kJ/kgmole-C-180.564-182.26-186.245-184.462Heat Flow kJ/h-9.50E+09-9.50E+09-9.60E+09-9.60E+092.1.5炼油厂解析塔T0102表2-5炼油厂解析塔T0102Name25 010226 010227 0102Vapour1.28E-0310Temperature C100.002331.13219124.3339Pressure kPa220218220Molar Flow kgmole/h33435.52500.002632935.51Mass Flow kg/h816849.317856.31798993Std Ideal Liq Vol Flow m3/h821.15227.44102793.711Molar Enthalpy kJ/kgmole-286322-27682.4-287467Molar Entropy kJ/kgmole-C-184.46220.23651-180.564Heat Flow kJ/h-9.60E+09-1.40E+07-9.50E+092.2 燃煤烟气压缩工段图2-2压缩工段2.2.1进料预热器E0201E0216表2-6 进料预热器E0201E0216Name31001300Q-106-5Vapour11Temperature C120.550850Pressure kPa101100Molar Flow kgmole/h18932.7118932.71Mass Flow kg/h572508.4572508.4Std Ideal Liq Vol Flow m3/h966.4635966.4635Molar Enthalpy kJ/kgmole-74519.3-76726.7Molar Entropy kJ/kgmole-C13.716877.622738Heat Flow kJ/h-1.40E+09-1.50E+09417919612.2.2原料压缩机C0201表2-7 原料压缩机C0201Name7475Q-127Vapour11Temperature C50275.5321Pressure kPa100500Molar Flow kgmole/h75730.8475730.84Mass Flow kg/h22900332290033LiqVol Flow m3/h3865.8543865.854Molar Enthalpy kJ/kgmole-76726.7-69539.3Molar Entropy kJ/kgmole-C7.62273811.07254Heat Flow kJ/h-5.80E+09-5.30E+095.44E+082.3 电厂吸收工段图2-3 电厂吸收工段2.3.1二氧化硫吸收塔T0301表2-8 二氧化硫吸收塔T0301Name5 030147 03011 03014 0301Vapour011.00E+000.00E+00Temperature C25.144414026.49894103.7681Pressure kPa1300130012971300Molar Flow kgmole/h39296.5837865.4234333.6342828.37Mass Flow kg/h950000114501710489651046052Std Ideal Liq Vol Flow m3/h941.37711932.9271835.6631038.641Molar Enthalpy kJ/kgmole-297033-73999.6-57199.7-292108续表2-8 二氧化硫吸收塔T0301Molar Entropy kJ/kgmole-C-206.328-6.2023-15.6324-181.19Heat Flow kJ/h-1.20E+10-2.80E+09-2.00E+09-1.30E+102.3.2贫富液换热器E0302表2-9 贫富液换热器E0302Name89210Vapour2.36E-0905.40E-031.46E-02Temperature C123.685113.4433101.2724106.67Pressure kPa212210220218Molar Flow kgmole/h39438.3939438.3942828.3742828.37Mass Flow kg/h952555.5952555.510460521046052Std Ideal Liq Vol Flow m3/h943.9378943.93781038.6411038.641Molar Enthalpy kJ/kgmole-288186-289176-292108-291195Molar Entropy kJ/kgmole-C-180.755-183.275-181.094-178.647Heat Flow kJ/h-1.10E+10-1.10E+10-1.30E+10-1.20E+102.4 二氧化硫解析工段图2-4 二氧化硫解析工段2.4.1二氧化硫解析塔T0401表2-10 二氧化硫解吸塔T0401NameRefluxBoilup15To ReboilerTo CondenserVapour011.46E-0201Temperature C76.15951123.685106.6703122.973120.0518Pressure kPa210212218212210Molar Flow kgmole/h8474.993101541070720013.59322.488Mass Flow kg/h165076.2183567.8261508.7421704.9188447.7Std Ideal Liq Vol Flow m3/h160.7818183.9629259.6549419.9456184.4541Molar Enthalpy kJ/kgmole-283078-238757-291195-283363-243513Molar Entropy kJ/kgmole-C-147.387-41.2499-178.65-161.074-36.168Heat Flow kJ/h-2.40E+09-2.40E+09-3.10E+09-5.70E+09-2.30E+092.4.2二氧化硫解析塔T0401的冷凝器表2-11二氧化硫解析塔T0401的冷凝器NameTo Condenser5054RefluxQ-112Vapour110.00E+000Temperature C120.051876.1595176.1595176.15951Pressure kPa210210210210Molar Flow kgmole/h9322.488287.4955608474.993Mass Flow kg/h188447.712463.8410907.7165076.2Std Ideal Liq Vol Flow m3/h184.454113.0482810.62394160.7818Molar Enthalpy kJ/kgmole-243513-340323-283078-283078Molar Entropy kJ/kgmole-C-36.1683.593046-147.387-147.387Heat Flow kJ/h-2.30E+09-9.80E+07-1.60E+08-2.40E+093.85E+082.4.3二氧化硫解析塔T0401的再沸器表2-12 二氧化硫解析塔T0401的再沸器NameTo Reboiler56BoilupQ-116Vapour001.00E+00续表2-12 二氧化硫解析塔T0401的再沸器Temperature C122.973123.685123.685Pressure kPa212212212Molar Flow kgmole/h20013.59859.510154Mass Flow kg/h421704.9238137.1183567.8Std Ideal Liq Vol Flow m3/h419.9456235.9827183.9629Molar Enthalpy kJ/kgmole-283363-288186-238757Molar Entropy kJ/kgmole-C-161.074-180.756-41.2499Heat Flow kJ/h-5.70E+09-2.80E+09-2.40E+094.05E+082.5 二氧化硫脱水工段图2-5 二氧化硫脱水工段2.5.1二氧化硫脱水塔T0601表2-13 二氧化硫脱水塔T0601NameRefluxBoilup6934To ReboilerTo CondenserVapour010101Temperature C21.97639120.587476.1401176.14019120.5874102.6948Pressure kPa200202210210202200Molar Flow kgmole/h4059.9834499.41544802299.969249.4176089.941Mass Flow kg/h106789.781058.2187263.5899719.01166630.8208199.7Std Ideal Liq Vol Flow m3/h94.412381.2144384.9928104.3991166.952198.0666Molar Enthalpy kJ/kgmole-292252-238706-283080-340349-278515-284971Molar Entropy kJ/kgmole-C-144.491-40.9387-147.3913.596496-142.044-10.2975Heat Flow kJ/h1.20E+091.10E+091.30E+097.80E+082.60E+09-1.70E+092.5.2二氧化硫脱水塔T0601的冷凝器表2-14 二氧化硫脱水塔T0601的冷凝器NameTo Condenser16RefluxQ-109Vapour1.00E+0010.00E+00Temperature C102.694821.9763921.97639Pressure kPa200200200Molar Flow kgmole/h6089.9412029.9584059.983Mass Flow kg/h208199.7101410106789.7Std Ideal Liq Vol Flow m3/h198.0666103.654394.4123Molar Enthalpy kJ/kgmole-284971-359706-292252MolarEntropy kJ/kgmole-C-10.29754.513748-144.491Heat Flow kJ/h-1.70E+09-7.30E+08-1.20E+091.81E+082.5.3二氧化硫脱水塔T0601的再沸器表2-15二氧化硫脱水塔T0601的再沸器NameTo Reboiler11BoilupQ-108Vapour0.00E+0001.00E+00Temperature C120.5874120.5874120.5874Pressure kPa202202202Molar Flow kgmole/h9249.4174750.0024499.415Mass Flow kg/h166630.885572.6281058.21Std Ideal Liq Vol Flow m3/h166.95285.7375481.21443Molar Enthalpy kJ/kgmole-278515-278515-238706Molar Entropy kJ/kgmole-C-142.044-142.044-40.9387Heat Flow kJ/h-2.60E+09-1.30E+09-1.10E+091.79E+082.6 克劳斯硫磺生产工段图2-6 克劳斯硫磺生产工段2.6.1原料加热器E0701表2-16 原料加热器E0701Name3722Q-100Vapour9.99E-011Temperature C23.56192200Pressure kPa200197Molar Flow kgmole/h2503.1992503.199Mass Flow kg/h117620.2117620.2续表2-16 原料加热器E0701Std Ideal Liq Vol Flow m3/h123.4146123.4146Molar Enthalpy kJ/kgmole-296649-289502Molar Entropy kJ/kgmole-C230.1491248.9729Heat Flow kJ/h-7.40E+08-7.20E+08178920002.6.2一级反应器R0701表2-17 一级反应器R0701Name24Vapour11Temperature C200376.85Pressure kPa197193.5526Molar Flow kgmole/h2503.1992384.285Mass Flow kg/h117620.2117621.8Std Ideal Liq Vol Flow m3/h123.4146114.2749Molar Enthalpy kJ/kgmole-289502-303940Molar Entropy kJ/kgmole-C248.9729268.4958Heat Flow kJ/h-7.20E+08-7.20E+082.6.3硫磺换热器E0702表2-18 硫磺换热器E0702Name461112Vapour1.00E+000.9877521.00E+001.00E+00Temperature C376.85300135240.6566Pressure kPa193.5526192188.5526186Molar Flow kgmole/h2384.2852403.7212291.2842291.3Mass Flow kg/h117621.8117621.897293.9497293.96Std Ideal Liq Vol Flow m3/h114.2749114.2749103.0441103.0441Molar Enthalpy kJ/kgmole-303940-305753-333431-328949Molar Entropy kJ/kgmole-C268.4958259.3099236.5251246.2703Heat Flow kJ/h-7.20E+08-7.30E+08-7.60E+08-7.50E+082.6.4二级反应器R0702表2-19 二级反应器R0702Name123Vapour11Temperature C240.6566249.4845Pressure kPa186182.5526Molar Flow kgmole/h2291.32286.057Mass Flow kg/h97293.9697294.02Std Ideal Liq Vol Flow m3/h103.0441102.6576Molar Enthalpy kJ/kgmole-328949-329704Molar Entropy kJ/kgmole-C246.2703246.9736Heat Flow kJ/h-7.50E+08-7.50E+082.6.5硫磺换热器E0703表2-20 硫磺换热器E0703Name39137Vapour1.00E+000.9994211.00E+001.00E+00Temperature C249.4845200135187.2215Pressure kPa182.5526181177.5526176Molar Flow kgmole/h2286.0572287.0242282.2932282.301Mass Flow kg/h97294.0297294.0496430.396430.31Std Ideal Liq Vol Flow m3/h102.6576102.6576102.1804102.1804Molar Enthalpy kJ/kgmole-329704-331733-335341-333167Molar Entropy kJ/kgmole-C246.9736242.5095235.973240.9816Heat Flow kJ/h-7.50E+08-7.60E+08-7.70E+08-7.60E+082.6.6三级反应器R0703表2-21 三级反应器R0703Name71Vapour11Temperature C187.2215187.7572Pressure kPa176172.5526续表2-21 三级反应器R0703Molar Flow kgmole/h2282.3012281.998Mass Flow kg/h96430.3196430.32Std Ideal Liq Vol Flow m3/h102.1804102.1586Molar Enthalpy kJ/kgmole-333167-333211Molar Entropy kJ/kgmole-C240.9816241.0184Heat Flow kJ/h-7.60E+08-7.60E+082.7 二硫化碳生产工段图2-7 二硫化碳生产工段2.7.1管式反应器R0801表2-22 管式反应器R0801Name393646Q-130Vapour1.00E+0001.00E+00Temperature C243.1143134.763645.2723Pressure kPa130013001300Molar Flow kgmole/h160662.3951514.9219Mass Flow kg/h2654.19521239.0423890.72Std Ideal Liq Vol Flow m3/h8.6273711.7342723.73993Molar Enthalpy kJ/kgmole-65076-69970.776204.52续表2-22 管式反应器R0801Molar Entropy kJ/kgmole-C185.8251469.4036292.8138Heat Flow kJ/h-1.00E+07-4.60E+0739239375-9.60E+072.7.2出口物料冷凝器E0801表2-23 出口物料冷凝器E0801Name351Q-100Vapour1.00E+001Temperature C644.6758400Pressure kPa200200Molar Flow kgmole/h514.9219514.9219Mass Flow kg/h23890.7223890.72Std Ideal Liq Vol Flow m3/h23.7399323.73993Molar Enthalpy kJ/kgmole76204.5239564.97Molar Entropy kJ/kgmole-C308.3313263.4116Heat Flow kJ/h39239375203728701