附录1-物料衡算说明书

神华榆林年产11.5万吨醋酸乙烯项目 物料衡算说明书目录1概述12物料衡算目的13物料衡算原理24物料衡算任务35物料衡算表35.1空分工段35.1.1林德空分塔（T0101-T0102）35.1.2 低温氧气选择性透过膜(M0101)55.2醋酸乙烯合成工段75.2.1固定床列管式反应器（R0201A、R0201B、R0201C）75.3预分离工段95.3.1闪蒸器（V0301A、V0301B）95.3.2 VAM吸收塔（T0301A、T0301B、T0301C）115.3.3多级填料闪蒸塔（T0302A、T0302B）135.4脱碳工段155.4.1闪蒸器（V0401A、V0401B）155.4.2二氧化碳吸收塔（T0401A、T0401B）175.5废气氧化工段195.5.1燃烧炉（F0501）195.6醋酸乙烯精制工段215.6.1脱乙酸塔（T0601A、T0601B、T0601C）215.6.2第一乙酸提浓塔235.6.3第二乙酸提浓塔（T0603）245.6.4醋酸乙烯粗脱水塔（T0604）265.6.5醋酸乙烯精脱水塔（T0605）285.6.6倾析器（V0610）306总结327附录：物质说明34中山大学一路向烯团队 1概述本项目以乙酸，乙烯为主要原料，通过催化反应合成醋酸乙烯，年产量为11.5万吨。在已确定化学生产工艺和流程后，由定性阶段转向定量阶段，通过对整个生产系统、生产车间，以及部分重要的生产单元进行物料衡算精算出主、副产品的产量，原材料的消耗定额、“三废”排放量及组成，以及产品收率等各项经济技术指标，从而定量地评述初步设计所选择的工艺路线、生产方法及工艺流程在经济上是否合理。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，全流程如图1-1所示：图1-1 全流程示意图2物料衡算目的工艺设计中，物料衡算是在工艺流程确定后进行的。目的是根据原料与产品之间的定量转化关系，计算原料的消耗量，各种中间产品、产品和副产品的产量，生产过程中各阶段的消耗量以及组成，进而为热量衡算、其他工艺计算及设备计算打基础。对于已有装置，物料衡算可以弄清原料的来龙去脉，找出生产中的薄弱环节，为改进生产、完善管理提供可靠的依据和明确方向，并可作为检查原料利用率及三废处理完善程度的一种手段。3物料衡算原理物料衡算是根据质量守恒定律，利用某进出化工过程中某些已知物流的流量和组成，通过建立有关物料的平衡式和约束式，求出其他未知物流的流量和组成的过程。系统中物料衡算一般表达式为：系统中的积累=输入-输出+生产-消耗可表示为：注：进入系统的物料流率；流出系统的物料流率；反应产生物料速率；反应消耗物料速率。式中，生成或消耗项是由于化学反应而生成或消耗的量；积累量可以是正值，也可以是负值，当系统中积累量不为零时称为非稳定状态过程；积累量为零时，称为稳定状态过程。稳定状态过程时，可以简化为：输入=输出-生成+消耗即：对无化学反应的稳定过程，又可表示为：输入=输出即：物料衡算包括总质量衡算、组分衡算和元素衡算。各种衡算方法的适用情况如表3-1所示：表3-1 各衡算方法适用情况类别物料衡算形式无化学反应有化学反应总衡算式总物流衡算式适用适用总物质的量衡算式适用不适用组分衡算式组分质量衡算式适用不适用组分物质的量衡算式适用不适用元素原子衡算式元素原子质量衡算式适用适用元素原子物质的量衡算式适用适用由于系统中存在化学反应，我们主要采用总质量衡算的衡算方法，同时列出每种物料组分的质量流量便于查找和计算。4物料衡算任务通过对系统整体以及部分主要单元的详细物料衡算，得到主、副产品的产量，原料的消耗量，“三废”的排放量以及最后产品的质量指标等关键经济技术指标，对所选工艺路线、设计流程进行定量评述，为后阶段的设计提供依据。5物料衡算表5.1空分工段5.1.1林德空分塔（T0101-T0102）表5-1 林德空分塔（T0101-T0102）物料衡算表进出口进口出口流股编号1-11-151-121-181-23Temperature()31.8528.8528.85-184.09-156.53Pressure(bar)5.81.181.171.228.43Mole Flow(kmol/hr)18284.385602.858686.571023750Mass Flow(kg/hr)5295091580422433774064.37120020Volume Flow(cum/hr)79733.061195051863372.962850.50Vapor Fraction11100.77Liquid Fraction00010.23Solid Fraction00000Enthalpy Flow(Gcal/hr)0.680.140.21-0.26-6.26Component Mass Flow(kg/hr)VAM00000HAC00000MEA00000H2O00000H2S00000CO200000HCO3-00000MEACOO-00000MEA+00000CO3-200000HS-00000S-200000H3O+00000OH-00000C2H400000O21225742633.870.5641.35119897N24001281528692432560.144.17E-19AR6807.562539.08120.034022.88122.70C4H1000000Component Mass FractionVAM00000HAC00000MEA00000H2O00000H2S00000CO200000HCO3-00000MEACOO-00000MEA+00000CO3-200000HS-00000S-200000H3O+00000OH-00000C2H400000O20.230.0200.010.999N20.760.970.9993.32E-050AR0.010.010.0010.990.001C4H10000005.1.2 低温氧气选择性透过膜(M0101)表5-2 低温氧气选择性透过膜(M0101)物料衡算表进出口进口出口流股编号1-241-251-26Temperature()-5-5-5Pressure(bar)8.438.438.43Mole Flow(kmol/hr)37503.07163746.93Mass Flow(kg/hr)120020122.70119897Volume Flow(cum/hr)9802.878.039794.84Vapor Fraction111Liquid Fraction000Solid Fraction000Enthalpy Flow(Gcal/hr)-0.870-0.87Component Mass Flow(kg/hr)VAM000HAC000MEA000H2O000H2S000CO2000HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H4000O21198970119897N2000AR122.70122.700C4H10000Component Mass FractionVAM000HAC000MEA000H2O000H2S000CO2000HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H4000O20.99901N2000AR0.00110C4H100005.2醋酸乙烯合成工段5.2.1固定床列管式反应器（R0201A、R0201B、R0201C）表5-3固定床列管式反应器（R0201A、R0201B、R0201C）物料衡算表进出口进口出口流股编号2-72-10Temperature()156.79159.85Pressure(bar)6.66.59Mole Flow(kmol/hr)1084.991056.20Mass Flow(kg/hr)36845.3636845.45Volume Flow(cum/hr)5714.705597.76Vapor Fraction11Liquid Fraction00Solid Fraction00Enthalpy Flow(Gcal/hr)-14.56-17.58Component Mass Flow(kg/hr)VAM1.204958.15HAC12955.349497.61MEA00H2O1139.042250.96H2S00CO20182.3019HCO3-00MEACOO-00MEA+00CO3-200HS-00S-200H3O+00OH-00C2H421629.8219956.43O21119.960N200AR00C4H1000Component Mass FractionVAM3.25E-050.13HAC0.350.26MEA00H2O0.030.06H2S00CO200.01HCO3-00MEACOO-00MEA+00CO3-200HS-00S-200H3O+00OH-00C2H40.590.54O20.030N200AR00C4H10005.3预分离工段5.3.1闪蒸器（V0301A、V0301B）表5-4 闪蒸器（V0301A、V0301B）物料衡算表进出口进口出口流股编号3-33-43-6Temperature()29.8529.8529.85Pressure(bar)5.95.95.9Mole Flow(kmol/hr)1584.301093.80490.50Mass Flow(kg/hr)55268.1731649.6923618.48Volume Flow(cum/hr)4508.554484.3424.22Vapor Fraction0.6910Liquid Fraction0.3101Solid Fraction000Enthalpy Flow(Gcal/hr)-33.5710.09-43.66Component Mass Flow(kg/hr)VAM7437.231443.865993.37HAC14246.42133.2814113.13MEA000H2O3376.44316.803059.64H2S000CO2273.45266.686.77HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H429934.6429489.08445.56O2000N2000AR000C4H10000Component Mass FractionVAM0.130.050.25HAC0.260.0040.60MEA000H2O0.060.010.13H2S000CO20.0050.00840.00029HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H40.540.930.02O2000N2000AR000C4H100005.3.2 VAM吸收塔（T0301A、T0301B、T0301C）表5-5 VAM吸收塔（T0301A、T0301B、T0301C）物料衡算表进出口进口出口流股编号3-193-203-253-26Temperature()18.1229.8529.2937.48Pressure(bar)65.95.85.8Mole Flow(kmol/hr)247.37729.20703.98272.60Mass Flow(kg/hr)13034.5521099.7919830.0914304.25Volume Flow(cum/hr)12.362989.562938.8414.30Vapor Fraction0110Liquid Fraction1001Solid Fraction0000Enthalpy Flow(Gcal/hr)-26.256.727.73-27.25Component Mass Flow(kg/hr)VAM1.57962.570.56963.59HAC12252.4288.85138.7412202.53MEA0000H2O780.56211.20101.25890.51H2S0000CO20177.79173.943.85HCO3-0000MEACOO-0000MEA+0000CO3-20000HS-0000S-20000H3O+0000OH-0000C2H4019659.3819415.61243.78O20000N20000AR0000C4H100000Component Mass FractionVAM0.000120.0500.07HAC0.940.00420.00700.85MEA0000H2O0.060.010.00510.07H2S0000CO200.00840.00880.00027HCO3-0000MEACOO-0000MEA+0000CO3-20000HS-0000S-20000H3O+0000OH-0000C2H400.930.980.02O20000N20000AR0000C4H1000005.3.3多级填料闪蒸塔（T0302A、T0302B）表5-6 多级填料闪蒸塔（T0302A、T0302B）物料衡算表进出口进口出口流股编号3-343-363-38Temperature()33.3734.09143.29Pressure(bar)5.85.35.3Mole Flow(kmol/hr)899.4030.22869.18Mass Flow(kg/hr)45074.86873.0644201.81Volume Flow(cum/hr)46.87140.6951.61Vapor Fraction010Liquid Fraction101Solid Fraction000Enthalpy Flow(Gcal/hr)-84.530.27-81.94Component Mass Flow(kg/hr)VAM7438.7533.427405.32HAC32416.936.4032410.53MEA000H2O4395.419.464385.95H2S000CO212.5512.555.63E-06HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H4811.23811.238.11E-05O2000N2000AR000C4H10000Component Mass FractionVAM0.170.0380.17HAC0.720.00730.73MEA000H2O0.100.0110.099H2S000CO20.000280.0141.27E-10HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H40.0180.931.84E-09O2000N2000AR000C4H100005.4脱碳工段5.4.1闪蒸器（V0401A、V0401B）表5-7 闪蒸器（V0401A、V0401B）物料衡算表进出口进口出口流股编号4-24-4 4-5Temperature()28.90-20-20Pressure(bar)5.35.675.67Mole Flow(kmol/hr)1086.181074.2311.96Mass Flow(kg/hr)30618.230261.33356.86Volume Flow(cum/hr)4971.633746.230.35Vapor Fraction110Liquid Fraction001Solid Fraction000Enthalpy Flow(Gcal/hr)11.8612.16-0.97Component Mass Flow(kg/hr)VAM34.2634.040.22HAC214.5113.28201.23MEA000H2O161.337.15154.18H2S000CO2273.45273.400.049HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H429934.6429933.461.19O2000N2000AR000C4H10000Component Mass FractionVAM0.00110.00110.00062HAC0.0070.000440.56MEA000H2O0.00530.000240.43H2S000CO20.00890.0090.00014HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H40.980.990.0033O2000N2000AR000C4H100005.4.2二氧化碳吸收塔（T0401A、T0401B）表5-8 二氧化碳吸收塔（T0401A、T0401B）物料衡算表进出口进口出口流股编号4-114-94-134-15Temperature()3052.0030.0638.29Pressure(bar)65.675.575.57Mole Flow(kmol/hr)1691.851074.231073.011686.86Mass Flow(kg/hr)45052.2430261.3330037.3245276.2Volume Flow(cum/hr)37.654971.794701.7938.86Vapor Fraction0110Liquid Fraction1001Solid Fraction0000Enthalpy Flow(Gcal/hr) -114.5512.9713.00-114.58Component Mass Flow(kg/hr)VAM034.043.41E-2234.04HAC013.284.08E-2813.28MEA20610.700.9519906.73H2O24366.167.15117.0524267.24H2S0000CO20273.401.49E-200.14HCO3-0001.62MEACOO-000617.72MEA+59.1600405.25CO3-200014.86HS-0000S-20000H3O+2.46E-10001.01E-08OH-16.21001.19C2H4029933.4629919.3314.13O20000N20000AR0000C4H100000Component Mass FractionVAM00.00111.14E-260.00075HAC00.000441.36E-320.00029MEA0.4603.17E-050.44H2O0.540.000240.00390.54H2S0000CO200.00904.96E-253.02E-06HCO3-0003.59E-05MEACOO-0000.014MEA+0.0013000.009CO3-20000.00033HS-0000S-20000H3O+5.47E-15002.23E-13OH-0.00036002.63E-05C2H400.990.9960.00031O20000N20000AR0000C4H1000005.5废气氧化工段5.5.1燃烧炉（F0501）表5-9 燃烧炉（F0501）物料衡算表进出口进口出口流股编号5-15-25-3Temperature()91.1525480Pressure(bar)11510Mole Flow(kmol/hr)23.91130160.62Mass Flow(kg/hr)713.783771.354485.08Volume Flow(cum/hr)713.54213.161007.57Vapor Fraction111Liquid Fraction000Solid Fraction000Enthalpy Flow(Gcal/hr)-1.67-0.13-2.61Component Mass Flow(kg/hr)VAM0.4400HAC402.4600MEA000H2O308.360553.15H2S000CO20.09957.21655.54HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H42.3700O20873.57435.82N202840.572840.57AR000C4H10000Component Mass FractionVAM0.0006200HAC0.5600MEA000H2O0.4300.12H2S000CO20.000140.0150.15HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H40.003300O200.230.097N200.750.63AR000C4H100005.6醋酸乙烯精制工段5.6.1脱乙酸塔（T0601A、T0601B、T0601C）表5-10 脱乙酸塔（T0601A、T0601B、T0601C）物料衡算表进出口进口出口流股编号6-26-56-9Temperature()143.80131.06172.80Pressure(bar)168.28.2Mole Flow(kmol/hr)579.4588.38491.07Mass Flow(kg/hr)29467.875185.1124282.76Volume Flow(cum/hr)34.446.6029.28Vapor Fraction000Liquid Fraction111Solid Fraction000Enthalpy Flow(Gcal/hr)-54.61-6.43-47.78Component Mass Flow(kg/hr)VAM4936.884541.93394.95HAC21607.021.9421605.08MEA000H2O2923.97641.232282.74H2S000CO23.75E-063.75E-061.53E-20HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H45.41E-055.41E-055.15E-20O2000N2000AR000C4H10000Component Mass FractionVAM0.170.880.016HAC0.730.000370.89MEA000H2O0.0990.120.094H2S000CO21.27E-107.24E-106.30E-25HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H41.84E-091.04E-082.12E-24O2000N2000AR000C4H100005.6.2第一乙酸提浓塔表5-11 乙酸脱轻塔（T0602A T0602B T0602C）物料衡算表进出口进口出口流股编号6-96-116-12Temperature()172.80164.37194.48Pressure(bar)8.277Mole Flow(kmol/hr)491.07130.52360.55Mass Flow(kg/hr)24282.762683.9021598.87Volume Flow(cum/hr)29.283.2626.31Vapor Fraction000Liquid Fraction111Solid Fraction000Enthalpy Flow(Gcal/hr)-47.78-8.62-38.01Component Mass Flow(kg/hr)VAM394.95394.950.0056HAC21605.0829.0421576.03MEA000H2O2282.742259.9122.83H2S000CO21.53E-2000HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H45.15E-2000O2000N2000AR000C4H10000Component Mass FractionVAM0.0160.152.60E-07HAC0.890.0110.999MEA000H2O0.0940.840.0011H2S000CO26.30E-2500HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H42.12E-2400O2000N2000AR000C4H100005.6.3第二乙酸提浓塔（T0603）表5-12 乙酸回收塔（T0603）物料衡算表进出口进口出口流股编号6-196-206-21Temperature()117.93159.97161.40Pressure(bar)76.36.3Mole Flow(kmol/hr)391.55347.7543.80Mass Flow(kg/hr)8051.697195.75855.94Volume Flow(cum/hr)85.618.711.02Vapor Fraction0.0500Liquid Fraction0.9511Solid Fraction000Enthalpy Flow(Gcal/hr)-26.28-22.98-2.93Component Mass Flow(kg/hr)VAM1184.841176.548.29HAC87.130.8786.26MEA000H2O6779.726018.34761.39H2S000CO2000HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H4000O2000N2000AR000C4H10000Component Mass FractionVAM0.150.160.0097HAC0.0110.000120.10MEA000H2O0.840.840.89H2S000CO2000HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H4000O2000N2000AR000C4H100005.6.4醋酸乙烯粗脱水塔（T0604）表5-13 醋酸乙烯粗脱水塔（T0604）物料衡算表进出口进口出口流股编号6-256-286-38Temperature()49.543069.43Pressure(bar)111Mole Flow(kmol/hr)612.90410.06202.84Mass Flow(kg/hr)22751.077658.0815093Volume Flow(cum/hr)24.607.7617.28Vapor Fraction000Liquid Fraction111Solid Fraction000Enthalpy Flow(Gcal/hr)-43.17-28.01-16.08Component Mass Flow(kg/hr)VAM14802.34340.8714461.47HAC6.711.764.94MEA000H2O7942.037315.45626.59H2S000CO21.13E-051.13E-050HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H40.000168.90E-050O2000N2000AR000C4H10000Component Mass FractionVAM0.650.040.96HAC0.000290.000230.00033MEA000H2O0.350.960.04H2S000CO24.95E-101.48E-090HCO3-000MEACOO-000MEA+000CO3-2000HS-000S-2000H3O+000OH-000C2H47.13E-091.16E-080O2000N2000AR000C4H100005.6.5醋酸乙烯精脱水塔（T0605）表5-14醋酸乙烯精脱水塔（T0605）物料衡算表进出口进口出口流股编号6-386-396-42Temperature()69.4356.5969.43Pressure(bar)111Mole Flow(kmol/hr)202.8465.90202.84Mass Flow(kg/hr)150933329.5615093Volume Flow(cum/hr)17.283.6817.28Vapor Fraction000Liquid Fraction111Solid Fraction000Enthalpy Flow(Gcal/hr)-16.08-4.82-16.08C