5-1附录一 物料衡算计算书

洛阳石化年产20万吨醋酸乙烯酯项目 物料衡算计算书目录1.1概述11.2物料衡算目的11.3物料衡算方法11.4总项目衡算21.4.1物料衡算任务21.4.2醋酸乙烯酯合成工段31.4.3醋酸乙烯酯精制工段101.4.4乙醛氧化工段171.4.5醋酸回收工段231.4.6总物料衡算331.5总结36 浙江工业大学Pray6团队1/11.1概述本项目主要以天然气乙炔和醋酸为原料，合成纯度为99.85wt%的醋酸乙烯酯产品，年产207135吨醋酸乙烯酯，副产922.53吨99.23wt%巴豆醛。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。1.2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下基础。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。1.3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系统中的积累=输入-输出+生产-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1-1所示：表1-1 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原始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。1.4总项目衡算从原料入厂到产品输出，其工艺路线可分为如下4个工段：醋酸乙烯酯合成工段、醋酸乙烯酯精制工段、乙醛氧化工段、醋酸回收工段。1.4.1物料衡算任务对于本厂，工艺采取年开工335天（8000小时）的连续操作，其中一年内的其中一个月（约30天）用于固定的停车设备检修及紧急情况处理。物料衡算的主要任务在于：（1）确定醋酸乙烯酯以及副产品的实际产量以及质量指标；（2）确定水、醋酸、乙炔的循环量及损失率等指标；（3）确定工艺中的“三废”排放量等公共经济指标；（4）各主要单元过程的物料衡算，并指导工艺设备的尺寸确定；（5）汇总全流程物料衡算，数据用于完成物料流程图等后续设计任务。1.4.2醋酸乙烯酯合成工段图1-1醋酸乙烯酯合成工段表1-2A 醋酸乙烯酯合成工段总物料衡算表进出口进口流股编号010101020121020603050477流股信息水醋酸乙炔混合气混合气醋酸Temperature 30.030.040.016.130.5101.6Pressure bar1.011.013.001.121.301.20Vapor Frac001110Mole Flow kmol/hr7.550312.263314.4463211.98231.909255.541Mass Flow kg/hr136.01518385.4878190.71985837.214898.38115322.781Volume Flow cum/hr0.13817.3092667.92867680.136612.38715.808Enthalpy Flow Gcal/hr-0.5148-35.561517.1268163.68951.4473-28.8927Mass Flow kg/hrH2O136.015147.09300.24119.6985.133C2H2008168.58681761.727767.4350CH3COOH018164.85703814.136015280.690CH3CHO018.38408.5990.0030VAC0000108.1660BUTENAL0000.07500.353CH3COCH3000000HCOOH055.15303.117036.605N20017.215184.6680.1030O20002.6951.6630CO2004.91761.9561.3130AR000000C3000000Mass FracH2O10.008000.0220C2H2000.9970.9530.8540CH3COOH00.98800.04400.997CH3CHO00.0010000VAC00000.1200BUTENAL000000CH3COCH3000000HCOOH00.0030000.002N2000.0020.00200O200000.0020CO2000.0010.0010.0010AR000000C3000000总计128770.597表1-2B 醋酸乙烯酯合成工段总物料衡算表进出口出口流股编号010601120117流股信息混合液反应气废气Temperature 63.3132.693.4Pressure bar2.201.381.20Vapor Frac011Mole Flow kmol/hr41.3253778.1911.190Mass Flow kg/hr2463.651126265.03241.918Volume Flow cum/hr2.41691002.09330.182Enthalpy Flow Gcal/hr-4.6898124.9463-0.0486Mass Flow kg/hrH2O6.098104.1760C2H22.73882534.9370CH3COOH2451.08816722.2970CH3CHO0.031456.6170VAC1.51025964.6930BUTENAL0.012115.3690CH3COCH3023.6820HCOOH2.17092.7060N20.00178.24717.215O202.6971.661CO20.00463.08523.042AR000C3000Mass FracH2O0.00200C2H20.0010.6540CH3COOH0.9950.1320CH3CHO00.0040VAC0.0010.2060BUTENAL00.0010CH3COCH3000HCOOH0.0010.0010N200.0010.411O2000.040CO200.0010.550AR000C3000总计128770.5971.4.2.1原料蒸发塔（T0101）图1-2原料蒸发塔（T0101）表1-3 原料蒸发塔物料衡算表进出口进口出口流股编号0104012201050107流股信息醋酸乙炔塔釜醋酸原料气Temperature 63.3122.263.363.1Pressure bar1.543.001.521.52Vapor Frac0101Mole Flow kmol/hr575.3543557.14641.3254091.175Mass Flow kg/hr33844.28494884.3952463.651126265.028Volume Flow cum/hr33.23138461.7852.41670195.793Enthalpy Flow Gcal/hr-64.9683186.7629-4.6899126.9022Mass Flow kg/hrH2O288.24219.9396.098302.083C2H2090697.7472.73890695.009CH3COOH33445.5473814.1362451.08834808.595CH3CHO18.3848.6020.03126.955VAC0108.1661.510106.657BUTENAL0.3530.0750.0120.416CH3COCH30000HCOOH91.7593.4212.17092.706N20184.7710.001184.771O202.69802.697CO2045.1440.00445.140AR0000C30000Mass FracH2O0.00900.0020.002C2H200.9560.0010.718CH3COOH0.9880.0400.9950.276CH3CHO0.001000VAC00.0010.0010.001BUTENAL0000CH3COCH30000HCOOH0.00300.0010.001N200.00200.001O20000CO20000AR0000C30000总计128728.679128278.6791.4.2.2醋酸乙烯酯合成反应器（R0101）图1-3醋酸乙烯酯合成反应器（R0101）表1-4 醋酸乙烯酯合成反应器物料衡算表进出口进口出口流股编号01100110-101110110-2流股信息原料气循环水产品气气液混合物Temperature 180.0170.4178.2180.0Pressure bar1.4610.001.4010.00Vapor Frac1010.1Mole Flow kmol/hr4091.1758850.0003778.1918850.000Mass Flow kg/hr126265.028159435.230126265.032159435.230Volume Flow cum/hr104399.509189.97100548.4023296.261Enthalpy Flow Gcal/hr136.0634-580.4620127.7492-502.0420Mass Flow kg/hrH2O302.083159435.230104.176159435.230C2H290695.009082535.9370CH3COOH34808.595016722.2970CH3CHO26.9550456.6170VAC106.657025964.6930BUTENAL0.4160115.3690CH3COCH30023.6820HCOOH92.706092.7060N2184.7710184.7730O22.69702.6970CO245.140063.0850AR0000C30000Mass FracH2O0.00210.0011C2H20.71800.6540CH3COOH0.27600.1320CH3CHO000.0040VAC0.00100.2060BUTENAL000.0010CH3COCH30000HCOOH0.00100.0010N20.00100.0010O20000CO20000AR0000C30000总计142209.960142209.9601.4.2.3膜分离器（M0101）图1-4膜分离器（M0101）表1-5 膜分离器物料衡算表进出口进口出口流股编号011601170118流股信息混合气渗透气渗余气Temperature 93.493.493.4Pressure bar3.201.201.20Vapor Frac111Mole Flow kmol/hr1373.7381.1901372.548Mass Flow kg/hr36731.18441.91836689.266Volume Flow cum/hr12831.91930.18234559.161Enthalpy Flow Gcal/hr71.1706-0.048671.2743Mass Flow kg/hrH2O8.44408.444C2H234949.824034949.824CH3COOH1615.22801615.228CH3CHO3.64303.643VAC45.807045.807BUTENAL0.03200.032CH3COCH3000HCOOH1.32001.320N278.24817.21561.033O21.8461.6610.185CO226.79323.0423.751AR000C3000Mass FracH2O000C2H20.95200.952CH3COOH0.04400.044CH3CHO000VAC0.00100.001BUTENAL000CH3COCH3000HCOOH000N20.0020.4110.002O200.0400CO20.0010.5500AR000C3000总计36731.18436731.1841.4.3醋酸乙烯酯精制工段图1-5醋酸乙烯酯精制工段表1-6A 醋酸乙烯酯精制工段总物流衡算表进出口进口流股编号01120211033804370467流股信息产品气醋酸醋酸醋酸乙烯酯醋酸Temperature 132.630.064.861.815.0Pressure bar1.381.011.981.013.00Vapor Frac10000Mole Flow kmol/hr3778.1910.03052.6950.7172981.889Mass Flow kg/hr126265.0321.8033129.08746.329179034.050Volume Flow cum/hr91002.0930.0023.1060.052164.971Enthalpy Flow Gcal/hr124.9463-0.0035-5.9380-0.0554-344.8772Mass Flow kg/hrH2O104.176017.6934.0576.274C2H282534.93700.98800CH3COOH16722.2971.8023059.7610178954.827CH3CHO456.61706.18000VAC25964.693039.27142.1730BUTENAL115.36900.0120.0331.902CH3COCH323.68200.3120.0660HCOOH92.7060.0013.015071.047N2184.7730000O22.69701.66200CO263.08500.19300AR00000C300000Mass FracH2O0.00100.0060.0880C2H20.6540000CH3COOH0.1320.9990.97801CH3CHO0.00400.00200VAC0.20600.0130.9100BUTENAL0.001000.0010CH3COCH30000.0010HCOOH0.0010.0010.00100N20.0010000O2000.00100CO200000AR00000C300000总计308470.707表1-6B 醋酸乙烯酯精制工段总物流衡算表进出口出口流股编号02060220022702440246流股信息乙炔乙醛醋酸醋酸乙烯酯废水Temperature 16.117.3128.850.066.3Pressure bar1.121.401.401.011.01Vapor Frac11000Mole Flow kmol/hr3211.98242.5423251.648301.5245.827Mass Flow kg/hr85837.2141390.764195248.38325891.875108.072Volume Flow cum/hr67680.136718.866210.14228.9600.114Enthalpy Flow Gcal/hr163.68951.0222-364.8043-24.8943-0.3940Mass Flow kg/hrH2O0.24112.7640.60014.473104.123C2H281761.727774.202000CH3COOH3814.1360194924.54200CH3CHO8.599454.19500.0020VAC0146.19942.95725853.2213.775BUTENAL0.0750117.0210.2200CH3COCH300.3140.06623.5060.174HCOOH3.1170163.1980.4530.001N2184.6680.103000O22.6951.664000CO261.9561.321000AR00000C300000Mass FracH2O00.00900.0010.963C2H20.9530.557000CH3COOH0.04400.99800CH3CHO00.327000VAC00.10500.9990.035BUTENAL000.00100CH3COCH30000.0010.002HCOOH000.00100N20.0020000O200.001000CO20.0010.001000AR00000C300000总计308470.7071.4.3.1产品吸收塔（T0201）图1-6产品吸收塔（T0201）表1-7 产品吸收塔物料衡算表进出口进口出口流股编号02030205021302060207流股信息产品气闪蒸液醋酸乙炔混合液Temperature 20.020.015.116.123.6Pressure bar1.341.401.201.121.14Vapor Frac10010Mole Flow kmol/hr3367.097411.0942981.9193211.9823548.128Mass Flow kg/hr98095.53428169.497179035.85285837.214219463.648Volume Flow cum/hr60172.43627.855164.98867680.136208.026Enthalpy Flow Gcal/hr156.4292-41.0748-344.8796163.6895-393.8096Mass Flow kg/hrH2O41.67362.5036.2740.241110.208C2H282341.537193.400081761.727773.206CH3COOH1969.11814753.179178956.6293814.136191864.781CH3CHO397.31959.29808.599448.017VAC13032.68812932.0050025964.687BUTENAL27.72287.6471.9020.075117.196CH3COCH311.17812.5040023.682HCOOH24.16468.54271.0483.117160.637N2184.7080.0650184.6680.103O22.6960.00102.6950.002CO262.7320.353061.9561.129AR00000C300000Mass FraH2O00.002000.001C2H20.8390.00700.9530.004CH3COOH0.0200.52410.0440.874CH3CHO0.0040.002000.002VAC0.1330.459000.118BUTENAL00.003000.001CH3COCH300000HCOOH00.002000.001N20.002000.0020O200000CO20.001000.0010AR00000C300000总计305300.883305300.8831.4.3.2分离精制隔壁塔（T0202）图1-7分离精制隔壁塔（T0201）表1-8 分离精制隔壁塔物料衡算表进出口进口出口流股编号02150248022002250227-1流股信息反应液塔釜蒸汽乙醛醋酸乙烯酯醋酸Temperature 24.3128.817.379.2128.8Pressure bar1.501.401.401.401.40Vapor Frac01100Mole Flow kmol/hr3600.8234375.18242.542306.6347626.829Mass Flow kg/hr222592.759262712.0821390.76425953.611457960.466Volume Flow cum/hr211.11166972.615718.86630.405492.893Enthalpy Flow Gcal/hr-399.7453-466.50281.0222-24.8818-855.6586Mass Flow kg/hrH2O127.8990.80712.764114.5361.407C2H2774.2020774.20200CH3COOH194924.547262276.34400457200.886CH3CHO454.1980454.1950.0030VAC26003.97157.800146.19925814.817100.757BUTENAL117.208157.45500.186274.477CH3COCH323.9940.0890.31423.6140.155HCOOH163.651219.58700.454382.785N20.10300.10300O21.66401.66400CO21.32101.32100AR00000C300000Mass FracH2O0.00100.0090.0040C2H20.00300.55700CH3COOH0.8760.998000.998CH3CHO0.00200.32700VAC0.11700.1050.9950BUTENAL0.0010.001000.001CH3COCH30000.0010HCOOH0.0010.001000.001N200000O2000.00100CO2000.00100AR00000C300000总计485304.841485304.8411.4.3.3醋酸乙烯酯脱水塔（T0203）图1-8醋酸乙烯酯脱水塔（T0203）表1-9 醋酸乙烯酯脱水塔物料衡算表进出口进口出口流股编号023102390241流股信息粗醋酸乙烯酯混合液精醋酸乙烯酯Temperature 70.061.972.7Pressure bar1.011.011.01Vapor Frac0.04700Mole Flow kmol/hr307.28618.048289.238Mass Flow kg/hr25994.3461104.11524890.231Volume Flow cum/hr418.0941.23928.869Enthalpy Flow Gcal/hr-24.9318-1.3811-23.6375Mass Flow kg/hrH2O118.594118.5820.012C2H2000CH3COOH000CH3CHO0.0030.0020VAC25851.407982.35424869.054BUTENAL0.2080.0010.207CH3COCH323.6803.17520.505HCOOH0.4540.0010.453N2000O2000CO2000AR000C3000Mass FracH2O0.0050.1070C2H2000CH3COOH000CH3CHO000VAC0.9950.8900.999BUTENAL000CH3COCH30.0010.0030.001HCOOH000N2000O2000CO2000AR000C3000总计25994.34625994.3461.4.4乙醛氧化工段图1-9乙醛氧化工段表1-10 乙醛氧化工段总物料衡算表进出口进口出口流股编号0106022003010318030503370335流股信息醋酸乙醛水氧气乙炔废气醋酸Temperature 63.317.330.030.030.55.064.8Pressure bar2.201.401.012.31.301.981.98Vapor Frac0101110Mole Flow kmol/hr41.32542.5421.0116.43731.9091.63852.695Mass Flow kg/hr2463.6511390.76418.208205.968898.38151.1223129.087Volume Flow cum/hr2.416718.8660.01870.426612.38719.0053.106Enthalpy Flow Gcal/hr-4.68981.0222-0.0689021.44730.0147-5.9380Mass Flow kg/hH2O6.09812.76418.208019.6980.00917.693C2H22.738774.20200767.4358.5170.988CH3COOH2451.08800000.4783059.761CH3CHO0.031454.195000.0030.3746.180VAC1.510146.19900108.1660.27239.271BUTENAL0.012000000.012CH3COCH300.3140000.0020.312HCOOH2.17000000.0023.015N20.0010.103000.1030.0010O201.6640205.9681.66340.8381.662CO20.0041.321001.3130.6290.193AR0000000C30000000Mass FracH2O0.0020.009100.02200.006C2H20.0010.557000.8540.1670CH3COOH0.99500000.0090.978CH3CHO00.3270000.0070.002VAC0.0010.105000.1200.0050.013BUTENAL0000000CH3COCH30000000HCOOH0.001000000.001N20000000O200.001010.0020.7990.001CO200.001000.0010.0120AR0000000C30000000总计4078.5914078.5911.4.4.1乙醛吸收塔（T0301）图1-10乙醛吸收塔（T0301）表1-11 乙醛吸收塔物料衡算表进出口进口出口流股编号0220030403050306流股信息乙醛水乙炔乙醛Temperature 17.330.030.538.6Pressure bar1.401.301.301.30Vapor Frac1010MoleFlow kmol/hr42.542413.00031.909423.633Mass Flow kg/hr1390.7647440.313898.3817932.696Volume Flow cum/hr718.8667.522612.3878.228Enthalpy Flow Gcal/hr1.0222-28.16171.4473-28.5868Mass Flow kg/hrH2O12.7647440.31119.6987433.378C2H2774.2020767.4356.767CH3COOH0000CH3CHO454.19500.003454.193VAC146.1990108.16638.033BUTENAL0000CH3COCH30.314000.314HCOOH00.00100.001N20.10300.1030O21.66401.6630CO21.32101.3130.009AR0000C30000Mass FracH2O0.00910.0220.937C2H20.55700.8540.001CH3COOH0000CH3CHO0.327000.057VAC0.10500.1200.005BUTENAL0000CH3COCH30000HCOOH0000N20000O20.00100.0020CO20.00100.0010AR0000C30000总计8831.0778831.0771.4.4.2乙醛脱水塔（T0302）图1-11乙醛脱水塔（T0302）表1-12 乙醛脱水塔物料衡算表进出口进口出口流股编号030603080316流股信息乙醛水乙醛Temperature 38.6104.823.3Pressure bar1.301.201.20Vapor Frac000Mole Flow kmol/hr423.633411.98911.643Mass Flow kg/hr7932.6967422.104510.590Volume Flow cum/hr8.2288.1280.652Enthalpy Flow Gcal/hr-28.5868-27.5444-0.5570Mass Flow kg/hrH2O7433.3787422.10311.274C2H26.76706.767CH3COOH000CH3CHO454.1930454.193VAC38.033038.033BUTENAL000CH3COCH30.31400.314HCOOH0.0010.0010N2000O2000CO20.00900.009AR000C3000Mass FracH2O0.93710.022C2H20.00100.013CH3COOH000CH3CHO0.05700.890VAC0.00500.074BUTENAL000CH3COCH3000.001HCOOH000N2000O2000CO2000AR000C3000总计7932.6967932.6961.4.4.3乙醛氧化鼓泡塔反应器（R0301）图1-12乙醛氧化鼓泡塔反应器（R0301）表1-13 乙醛氧化鼓泡塔反应器物料衡算表进出口进口出口流股编号01060317031803340330流股信息醋酸乙醛氧气醋酸废气Temperature 63.323.330.065.065.0Pressure bar2.202.102.30