6-1附录一 物料平衡书

物料平衡书陕西北元化工集团股份有限公司化工分公司15万吨/年醋酸乙烯项目 物料平衡书目录1 概述22 物料衡算目的23 物料衡算方法24 总项目衡算34.1物料衡算任务34.2醋酸乙烯制备工段34.3循环乙炔精制工段64.4循环醋酸和醋酸乙烯精制工段114.5不凝气资源化处理工段165 总结21物料平衡书1 概述本项目为陕西北元化工集团股份有限公司化工分公司15万吨/年醋酸乙烯项目。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计算出主、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。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 物料衡算方法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+生成-消耗式中，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+消耗对无化学反应的稳定过程，又可表示为： 输入=输出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料衡算式适用适用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4 总项目衡算整个项目一共有四个工段，分别为醋酸乙烯制备工段、循环乙炔精制工段、循环醋酸和醋酸乙烯精制工段、不凝气资源化处理工段。4.1物料衡算任务物料衡算的主要任务在于：1.确定项目产品的产量及质量指标。2.确定乙炔、醋酸、MDEA的使用量及损失率3.各主要工艺物流的物料衡算，指导工艺设备的选型及设计。4.2醋酸乙烯制备工段表4-1 醋酸乙烯制备工段总物料衡算进出口进口出口流股号0101010201080109010601360137流股信息循环醋酸醋酸原料乙炔原料循环乙炔醋酸液混合反应气混合反应液Phase:Liquid Liquid VaporVaporLiquidVaporLiquidMole FlowKMOL/HR6182202751357.118.380001437.40813.483Mass FlowKG/HR37221.013098.27160.4235526.3505.85440302.952197.2Volume FlowCUM/HR39.351512.38186642.679173.810.5514631327.551.0061TemperatureC117.627352020136.8382020PressureBAR1513.51.751.11.1Vapor Fraction0011010Liquid Fraction1100101Solid Fraction0000000Molar EnthalpyKCAL/MOL-112.644-114.51654.438153.1841-112.14148.5879-101.945Mass EnthalpyKCAL/KG-1870.29-1923.432090.732031.62-1857.731732.88-1588.79Enthalpy FlowGCAL/HR-69.6138-25.193514.970572.1760-0.9397469.8402-82.9305Molar EntropyCAL/MOL-K-68.0127-74.508813.853610.9975-66.511510.8061-75.8500Mass EntropyCAL/GM-K-1.12925-1.251460.532050.42010-1.101830.38540-1.18211Molar DensityKMOL/CUM15.704617.76810.041400.1479315.19600.0458815.9487Mass DensityKG/CUM945.8581057.861.077943.87258917.2961.286501023.35Average Molecular Weight60.228159.537426.037926.178160.364428.038864.1650Component Mass FlowKG/HR007160.4234959.7035858.3766.311KG/HR36894.613032.702.77997498.6101217.6035593.9KG/HR10.975600296.4570.056483043.1015224.1KG/HR06.54911099.48580.00856123.58965.1023KG/HR00014.5968027.66300.43232KG/HR4.18E-07001.919851.51E-095.5878214.1463KG/HR2.47E-0545.84380149.8110.2194616.8906152.677KG/HR53.06220003.482060.1019261.9732KG/HR25.079113.098204.50E-050.265572.3235035.5888KG/HR60.0886001.519730.674544.7758773.0245KG/HR177.169001.57E-072.537042.95334209.913KG/HR1.45E-05001.00E-057.90E-061.69E-101.67E-05KG/HR0000000KG/HR0000000KG/HR0000000KG/HR0000000KG/HR0000000KG/HR0000000KG/HR0000000Component Mass Fraction0010.9840500.889720.014680.991230.99507.83E-050.985680.030210.681910.00029000.008340.000110.075500.2916600.000500.002801.69E-050.003070.001250000.0004100.000698.28E-061.12E-11005.40E-052.99E-120.000140.000276.63E-100.003500.004220.000430.000420.002930.001430000.006882.53E-060.001190.000670.00101.27E-090.000525.77E-050.000680.00161004.28E-050.001330.000120.001400.00476004.41E-120.005027.33E-050.0040215413.91E-10002.83E-101.56E-084.18E-153.20E-1000000000000000000000000000000000000000000000000004.3循环乙炔精制工段表4-2 循环乙炔精制工段总物料衡算（进口段）进出口进口流股号01360330035802070237流股信息混合反应气粗乙炔气共沸剂工艺水MDEAPhase:VaporLiquidLiquidLiquidLiquidMole FlowKMOL/HR1437.40128.33923.13254444.55Mass FlowKG/HR40302.97729.701333.93792.672837.983Volume FlowCUM/HR31327.57.250531.422110.809370.84609TemperatureC2030118.2214030PressureBAR1.111.11211Vapor Fraction10000Liquid Fraction01111Solid Fraction00000Molar EnthalpyKCAL/MOL48.5879-115.282-109.957-68.0146-68.5024Mass EnthalpyKCAL/KG1732.88-1914.07-1906.82-3775.38-3641.82Enthalpy FlowGCAL/HR69.8402-14.7952-2.54357-2.99264-3.05178Molar EntropyCAL/MOL-K10.8061-75.6282-65.5098-38.1562-39.9265Mass EntropyCAL/GM-K0.38540-1.25568-1.13605-2.11799-2.12263Molar DensityKMOL/CUM0.0458817.700716.266354.363252.6538Mass DensityKG/CUM1.286501066.09937.991979.368990.415Average Molecular Weight28.038860.228657.664718.015318.8099Component Mass FlowKG/HR35858.36.75E-47000KG/HR1217.607660.891306.1000KG/HR3043.102.891560.0002000KG/HR123.5899.94E-23000KG/HR27.66300000KG/HR5.587821.36E-071.17E-1100KG/HR16.89063.47E-0623.2010792.672796.275KG/HR0.1019211.3702000KG/HR2.323505.746453.9400600KG/HR4.7758712.34220.6793000KG/HR2.9533436.45410.0118000KG/HR1.69E-103.14E-060041.7073KG/HR00000KG/HR00000KG/HR00000KG/HR00000KG/HR00000KG/HR00000KG/HR00000Component Mass Fraction0.889728.73E-510000.030210.991100.97914000.075500.000371.54E-07000.003071.29E-260000.0006900000.000141.76E-118.78E-15000.000424.49E-100.0173910.950232.53E-060.001470005.77E-050.000740.00295000.000120.001600.00051007.33E-050.004728.85E-06004.18E-154.07E-10000.0497700000000000000000000000000000000000表4-3 循环乙炔精制工段总物料衡算（出口段）进出口出口流股号0101022602350241024302440246流股信息循环醋酸废气废液废液废气废气粗醋酸乙烯Phase:Liquid VaporLiquidLiquidVaporVaporLiquidMole FlowKMOL/HR6185.427052.1427977.583113.70818.18089219.943Mass FlowKG/HR37221.0149.28076.10881518.20358.851187.67613827.4Volume FlowCUM/HR39.3515148.9440.077971.6743992.6647271.13313.3811TemperatureC117.6276050202087.607226.8427PressureBAR1113.53.50.91.212Vapor Fraction0100110Liquid Fraction1011001Solid Fraction0000000Molar EnthalpyKCAL/MOL-112.64425.7864-71.7374-55.131853.1841-18.9450-101.397Mass EnthalpyKCAL/KG-1870.29937.459-2019.71-2817.342031.62-825.818-1612.85Enthalpy FlowGCAL/HR-69.61380.13994-0.15372-4.277290.72905-0.15499-22.3015Molar EntropyCAL/MOL-K-68.01277.551926.65E+33-34.532410.99751.22885-60.9007Mass EntropyCAL/GM-K-1.129250.274551.87E+32-1.764670.420100.05357-0.96870Molar DensityKMOL/CUM15.70460.0364427.480846.33530.147930.0301716.4368Mass DensityKG/CUM945.8581.00225976.080906.7233.872580.692191033.35Average Molecular Weight60.228127.506735.51919.568726.178122.940862.8680Component Mass FlowKG/HR0105.7060.00129231.214353.12875.9060132.396KG/HR36894.61.096191.4765058.75580.028087.6297010885.7KG/HR10.975620.82500.0001934.661142.994514.841992741.51KG/HR02.076400.000455.123041.004911.9174713.9683KG/HR00.225790.012860.629890.1474410.41770.07439KG/HR4.18E-070.161010.000110.402750.019390.177052.90524KG/HR2.47E-0518.873631.29861216.421.5132586.361116.8892KG/HR53.0622000006.98371KG/HR25.07917.44E-064.17E-050.001634.55E-070.000137.45495KG/HR60.08860.315760.0012790.536240.015350.298688.30438KG/HR177.1695.50E-077.62E-076.39E-061.58E-098.78E-0711.1706KG/HR1.45E-05036.78790.459371.02E-070.126662.37E-06KG/HR002.101200000KG/HR004.370410000KG/HR000.057890000KG/HR004.97E-050000KG/HR008.46E-090000KG/HR0000000KG/HR0000000Component Mass Fraction00.708111.69E-050.152290.984050.404450.009570.991230.007340.019400.038707.83E-050.040650.787260.000290.139502.54E-060.003070.008340.025800.1982700.013915.88E-060.003370.002800.010220.0010100.001510.000170.000410.000410.055515.38E-061.12E-110.001081.40E-060.000275.40E-050.000940.000216.63E-100.126430.411230.801220.004220.460160.001220.00143000000.000510.000674.98E-085.48E-071.07E-061.27E-096.95E-070.000540.001610.002121.68E-050.000354.28E-050.001590.000600.004763.68E-091.00E-084.21E-094.41E-124.68E-090.000803.91E-1000.483360.000302.83E-100.000671.72E-10000.027610000000.057420000000.000760000006.53E-070000001.11E-100000000000000000004.4循环醋酸和醋酸乙烯精制工段表4-4 循环醋酸和醋酸乙烯精制工段总物料衡算（一）进出口进口出口流股号01370246031503410101流股信息混合反应液粗醋酸乙烯粗乙醛工艺水循环醋酸Phase:LiquidLiquidLiquidLiquidLiquid Mole FlowKMOL/HR813.483219.943337.0893618Mass FlowKG/HR52197.213827.46072.7754.045837221.0Volume FlowCUM/HR51.006113.38116.263230.0541139.3515TemperatureC2026.842749.911720117.627PressureBAR1.11.212111Vapor Fraction00000Liquid Fraction11111Solid Fraction00000Molar EnthalpyKCAL/MOL-101.945-101.397-67.8411-68.3619-112.644Mass EnthalpyKCAL/KG-1588.79-1612.85-3765.74-3794.66-1870.29Enthalpy FlowGCAL/HR-82.9305-22.3015-22.8685-0.20509-69.6138Molar EntropyCAL/MOL-K-75.8500-60.9007-37.6074-39.3080-68.0127Mass EntropyCAL/GM-K-1.18211-0.96870-2.08752-2.18193-1.12925Molar DensityKMOL/CUM15.948716.436853.820255.440015.7046Mass DensityKG/CUM1023.351033.35969.590998.767945.858Average Molecular Weight64.165062.868018.015318.015360.2281Component Mass FlowKG/HR766.311132.3960.0005600KG/HR35593.910885.78.98E-07036894.6KG/HR15224.12741.512.76E-06010.9756KG/HR65.102313.96830.0202600KG/HR0.432320.074394.83E-1300KG/HR14.14632.905240.0133004.18E-07KG/HR152.67716.88926072.7354.04582.47E-05KG/HR61.97326.983710053.0622KG/HR35.58887.454959.41E-05025.0791KG/HR73.02458.304386.16E-06060.0886KG/HR209.91311.170600177.169KG/HR1.67E-052.37E-06001.45E-05KG/HR00000KG/HR00000KG/HR00000KG/HR00000KG/HR00000KG/HR00000KG/HR00000Component Mass Fraction0.014680.009579.25E-08000.681910.787261.48E-1000.991230.291660.198274.54E-1000.000290.001250.001013.34E-06008.28E-065.38E-067.95E-17000.000270.000212.19E-0601.12E-110.002930.001220.9999916.63E-100.001190.00051000.001430.000680.000541.55E-0800.000670.001400.000601.01E-0900.001610.0040215410.00080000.004763.20E-101.72E-10003.91E-1000000000000000000000000000000000000表4-5 循环醋酸和醋酸乙烯精制工段总物料衡算（二）进出口出口流股号0305031803300331034003510358流股信息乙炔不凝气粗醋酸乙烯粗乙炔醋酸乙烯产品废液废液粗乙炔Phase:VaporLiquidLiquidLiquidLiquidLiquidLiquidMole FlowKMOL/HR34.4930353.557128.339204.1259.884741.9827823.1325Mass FlowKG/HR1118.616546.317729.7017554.0599.48348.28501333.93Volume FlowCUM/HR840.7146.641137.2505320.78320.633520.052231.42211TemperatureC2016.65143085.0855117.85771.9577118.221PressureBAR1111.5111.112Vapor Fraction1000000Liquid Fraction0111111Solid Fraction0000000Molar EnthalpyKCAL/MOL35.5537-66.5824-115.282-81.2925-112.9994-72.6884-109.957Mass EnthalpyKCAL/KG1096.32-3596.02-1914.07-945.302-1863.22-2984.88-1906.824028Enthalpy FlowGCAL/HR1.22636-23.5407-14.7952-16.5939-1.11697-0.144125-2.54357Molar EntropyCAL/MOL-K4.66165-39.0003-75.6282-86.7196-68.2990-40.7364-65.5098Mass EntropyCAL/GM-K0.14374-2.10635-1.25568-1.00841-1.12617-1.67280-1.13605Molar DensityKMOL/CUM0.0410353.237517.70079.8216515.602837.962216.2663Mass DensityKG/CUM1.33055985.7231066.09844.626946.266924.461937.991Average Molecular Weight32.430118.515660.228785.996460.647324.352257.6647Component Mass FlowKG/HR759.809138.8986.75E-473.44E-11000KG/HR3.08E-099.19E-077660.8918.5691586.26813.18481306.10KG/HR314.403114.7212.8915617518.90.004373.664860.00020KG/HR22.64756.44379.94E-230.00033000KG/HR0.444970.06174000000KG/HR1.2244114.46851.36E-071.371841.77E-112.72E-071.17E-11KG/HR20.08426221.723.47E-060.496661.36E-0830.844823.2010KG/HR0011.370206647.61E-144.52460369200KG/HR2.73E-079.62E-055.746458.193300.071790.011413.94006KG/HR3.81E-050.00054012.34226.476421.165420.579120.67930KG/HR1.47E-16036.45410.000367.449161.57E-060.01180KG/HR9.88E-2403.14E-066.21E-411.37E-0600KG/HR0000000KG/HR0000000KG/HR0000000KG/HR0000000KG/HR0000000KG/HR0000000KG/HR0000000Component Mass Fraction0.679240.021228.73E-511.96E-150002.76E-121.40E-100.991100.001060.977960.273060.979140.281070.0175250.000370.9987.28E-060.075901.54E-070.020250.008621.29E-261.90E-080000.000409.43E-06000000.001090.002211.76E-117.81E-052.95E-145.64E-098.78E-150.017950.950424.49E-102.83E-052.27E-110.638810.01740000.0014709774.33E-180.007547509002.44E-101.47E-080.000740.000470.000120.000240.002953.40E-088.25E-080.001600.000370.001940.011990.000511.32E-1900.004722.06E-080.012463.25E-088.85E-068.83E-2704.07E-103.54E-452.29E-090000000000000000000000000000000000000000000000000004.5不凝气资源化处理工段表4-6 不凝气资源化处理工段总物料衡算（进口）进出口进口流股号0305031804280432流股信息乙炔不凝气粗醋酸乙烯氧气蒸汽Phase:VaporLiquidVaporVaporMole FlowKMOL/HR34.4930353.55722.735Mass FlowKG/HR1118.616546.31726.373630.535Volume FlowCUM/HR840.7146.64113137.8731054.56TemperatureC2016.651420100PressureBAR1141.01333Vapor Fraction1011Liquid Fraction0100Solid Fraction0000Molar EnthalpyKCAL/MOL35.5537-66.5824-0.04335-57.2264Mass EnthalpyKCAL/KG1096.32-3596.02-1.35471-3176.55Enthalpy FlowGCAL/HR1.22636-23.5407-0.00098-2.00292Molar EntropyCAL/MOL-K4.66165-39.0003-2.86728-8.96903Mass EntropyCAL/GM-K0.14374-2.10635-0.08961-0.49786Molar DensityKMOL/CUM0.0410353.23750.164640.03319Mass DensityKG/CUM1.33055985.7235.268410.59791Average Molecular Weight32.430118.515631.998818.0153Component Mass FlowKG/HR759.809138.89800KG/HR3.08E-099.19E-0700KG/HR314.403114.72100KG/HR22.64756.443700KG/HR0.444970.06174000KG/HR1.2244114.468500KG/HR20.08426221.720630.535KG/HR0000KG/HR2.73E-079.62E-0500KG/HR3.81E-050.00054000KG/HR1.47E-16000KG/HR9.88E-24000KG/HR0000KG/HR0000KG/HR0000KG/HR0000KG/HR0000KG/HR0000KG/HR00726.3730Component Mass Fraction0.679240.02122002.76E-121.40E-10000.281070.017525000.020250.00862000