8-2 附录二 物料平衡计算书

中化泉州石化有限公司10万吨/年甲基丙烯酸甲酯项目物料平衡计算书目 录1.物料衡算目的12.物料衡算方法13.物料衡算任务14.全装置物料衡算表25.分工段物料衡算25.1 丁烯异构反应工段25.2 异丁烯萃取及萃取剂回收工段45.3 甲基丙烯醛合成工段65.4 甲基丙烯醛精制工段85.5 甲基丙烯酸合成及精制工段105.6 甲醇回收工段125.7 甲基丙烯酸甲酯合成工段145.8甲基丙烯酸甲酯精制工段165.9 废气废水处理工段18中化泉州石化有限公司10万吨/年甲基丙烯酸甲酯项目物料平衡计算书1.物料衡算目的本项目拟建一套年产10万吨的甲基丙烯酸甲酯装置，同时副产甲基丙烯酸等产品。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。2.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3.物料衡算任务（1） 确定甲基丙烯酸甲酯以及副产品的实际产量以及质量指标；（2） 确定工艺中的“三废”排放量等公共经济指标；（3） 各主要单元过程的物料衡算，并指导工艺设备的尺寸确定；（4） 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。Mars 21 4.全装置物料衡算表表4-1 项目总物料平衡表物料名称收率wt%数量备注kg/h104t/a入方年开工时数按8000小时计抽余碳四18.8421013.1016.81进料氢气0.0114.940.01新鲜甲醇4.284770.003.82进料空气76.8785731.2268.58总计100.00111529.2689.22出方剩余碳四（未反应C4）10.1111278.209.02产品甲基丙烯酸甲酯占原料抽余碳四的比例为64.1%甲基丙烯酸甲酯12.0813470.2010.78甲基丙烯酸0.80892.050.71异丁烷0.55608.520.49反应生成水（去产汽）4.474988.333.99废气+损失71.9980291.9664.23总计100111529.2689.225.分工段物料衡算5.1 丁烯异构反应工段图5-1 丁烯异构反应工段流程图中化泉州石化有限公司10万吨/年甲基丙烯酸甲酯项目物料平衡计算书表5-1 丁烯异构反应工段物料平衡表入方出方物流编号1-11-21-31-5物流说明抽余碳四进料氢气T0101塔顶粗异丁烯T0101塔底剩余碳四温度 30.0030.0055.6066.30压力 bar9.009.007.007.35气化分率0.001.000.000.00摩尔流量 kmol/h373.297.41173.393199.90质量流量 kg/h21013.1014.949749.811278.21体积流量 m3/h36.1420.8717.9220.74组分kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率C4H8-59827.810.4689119.780.935708.020.063C4H8-16436.300.3065.42557 PPM10.79957 PPMC4H8-2846.820.040.4749 PPM2552.670.226C4H10-2609.370.029608.630.0620.7466 PPMC4H10-11370.050.0655.02516 PPM1795.900.159H214.9441.00tracetracetracetraceC4H8-31916.390.0916.39656 PPM6207.820.55C4H6-46.30300 PPM4.05415 PPM2.25200 PPM合计21013.101.0014.9441.009749.801.0011278.211.00总计 kg/h21028.0421028.045.2 异丁烯萃取及萃取剂回收工段图5-2 异丁烯萃取及萃取剂回收工段流程图表5-2 异丁烯萃取及萃取剂回收工段物料平衡表入方出方物流编号1-31-151-61-91-16物流说明T0101塔顶粗异丁烯补充萃取剂（NMP）异丁烷纯异丁烯放出萃取剂（NMP）温度 55.6030.0047.3055.9039.30压力 bar7.007.007.007.007.00气化分率0.000.000.001.000.00摩尔流量 kmol/h173.3968.6010.60162.4268.96质量流量 kg/h9749.805000.00608.529114.005027.27体积流量 m3/h17.925.091.15551.995.18组分kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率C4H8-59119.780.93521.960.0369072.770.99525.020.005C4H8-15.42557 PPM0.40659 PPM4.37479 PPM0.65131 PPMC4H8-20.4749 PPM0.0023 PPM0.4651 PPM0.005896 PPBC4H10-2608.630.062580.460.95425.220.0032.94586 PPMC4H10-15.02516 PPM1.790.0032.54279 PPM0.68136 PPMH2O400.000.083.270.005tracetrace396.730.079H2tracetraceC4H8-36.39656 PPM0.610.0014.56501 PPM1.21242 PPMC4H6-44.05415 PPM 0.001414 PPB4.04444 PPM0.001182 PPBNMP4600.000.920.0035 PPMtracetrace4600.000.915合计9749.801.005000.001.00608.5221.009114.001.005027.271.00总计 kg/h14749.8014749.805.3 甲基丙烯醛合成工段图5-3甲基丙烯醛合成工段流程图表5-3 甲基丙烯醛合成工段物料衡算表入方出方物流编号1-92-12-162-10物流说明纯异丁烯进料空气进料蒸汽高压产物蒸汽温度 55.9035.00149.60242.60压力 bar7.001.014.708.10气化分率1.001.001.001.00摩尔流量 kmol/h162.421617.00485.102263.07质量流量 kg/h9114.0046586.658739.2164439.86体积流量 m3/h551.9940871.383540.4411917.79组分kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率C4H8-59072.770.99568.280.001C4H8-14.37479 PPM4.3768 PPMC4H8-20.4651 PPM0.467 PPMC4H10-225.220.00325.22391 PPMC4H10-12.54279 PPM2.5439 PPMMAL11039.870.171MAA249.160.004H2Otracetrace8739.2121.0011631.940.181O210348.410.2225158.620.08N236238.230.77836238.230.562C4H8-34.56501 PPM4.5671 PPMC4H6-44.04444 PPM4.0463 PPMNMPtracetracetracetraceCO27.43115 PPMHAC5.0779 PPM合计9114.001.0046586.651.008739.2121.0064439.861.00总计 kg/h64439.8664439.865.4 甲基丙烯醛精制工段图5-4 甲基丙烯醛精制流程图表5-4 甲基丙烯醛精制工段物料衡算入方出方物流编号2-104-322-232-222-28物流说明高压产物蒸汽V0202闪蒸废气T0201A塔顶不凝气精制MALT0201B塔底废水温度 242.6030.0066.6066.60134.30压力 bar8.108.001.301.303.09气化分率1.001.001.000.000.00摩尔流量 kmol/h2263.071471.900.31154.69636.17质量流量 kg/h64439.8642232.2618.2410356.6311833.02体积流量 m3/h11917.794620.336.5913.1113.54组分kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率C4H8-568.280.00130.49722 PPM0.440.02437.340.004tracetraceC4H8-14.3768 PPM1.9346 PPM0.020.0022.41233 PPMtracetraceC4H8-20.467 PPM0.174 PPM0.003150 PPM0.2928 PPMtracetraceC4H10-225.22391 PPM12.05285 PPM0.160.00913.000.001tracetraceC4H10-12.5439 PPM1.0124 PPM0.02837 PPM1.51146 PPMtracetraceMAL11039.870.171658.090.01615.270.83710135.290.979231.370.02MAA249.160.0040.5212 PPMtracetrace 0.00118 PPB248.810.021H2O11631.940.181120.870.0030.060.004163.150.01611347.800.959O25158.620.085158.160.1220.460.0250.005449 PPBN236238.230.56236236.530.8581.690.0930.01926 PPBC4H8-34.5671 PPM1.7842 PPM0.030.0022.75266 PPMC4H6-44.0463 PPM3.8692 PPM0.002132 PPM0.1818 PPMNMPtracetracetracetracetracetracetracetracetracetraceCO27.43115 PPM6.72159 PPM0.050.0030.6664 PPMHAC5.0779 PPM0.03833 PPBtrace17 PPB0.001116 PPB5.03426 PPM合计64439.861.0042232.261.0018.241.0010356.631.0011833.021.00总计 kg/h64439.8664439.865.5 甲基丙烯酸合成及精制工段图5-5 甲基丙烯酸合成及精制工段流程图表5-5 甲基丙烯酸合成及精制工段物料衡算表入方出方物流编号3-353-344-24物流说明进料空气进料蒸汽MAA、MAL混合液V0304闪蒸废气MAA产品温度 30.00149.6050.0030.0030.00压力 bar1.014.703.001.001.00气化分率1.001.000.001.000.00摩尔流量 kmol/h113.314.7710.55114.4710.42质量流量 kg/h3264.5286.00781.423239.90892.04体积流量 m3/h2817.4434.840.902883.320.89组分kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率C4H8-5tracetracetracetracetracetraceC4H8-1tracetracetracetraceC4H8-2tracetracetracetraceC4H10-2tracetracetracetracetracetraceC4H10-1tracetracetracetraceMAL529.370.6771.54476 PPM3.880.004MAA246.320.3156.800.002883.060.99H2O86.001.001.810.0020.1752 PPM1.640.002MMA1.390.00286.420.0270.970.001MEOH 0.00137 PPB 0.0013 PPB 0.00121 PPBO2725.150.222605.540.1870.019 PPMN22539.360.7782539.340.7840.0220 PPMHAC2.510.0030.0517 PPM2.460.003合计3264.521.0086.001.00781.421.003239.901.00892.041.00总计 kg/h4131.954131.955.6 甲醇回收工段图5-6 甲醇回收工段流程图表5-6 甲醇回收工段物料衡算表入方出方物流编号3-144-383-203-33物流说明V0303闪蒸液相V0305闪蒸废气循环甲醇T0301塔底釜液温度 30.0040.0040.0050.10压力 bar20.004.904.001.01气化分率0.001.000.000.00摩尔流量 kmol/h764.427.29472.70284.42质量流量 kg/h32373.51214.8715762.7316395.90体积流量 m3/h37.2938.5820.1417.71组分kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率C4H8-526.10806 PPM2.520.01223.580.001tracetraceC4H8-11.8657 PPM0.03117 PPM1.83116 PPMtracetraceC4H8-20.3711 PPM0.00418 PPM0.3623 PPMtracetraceC4H10-25.88182 PPM0.09420 PPM5.80368 PPMtracetraceC4H10-11.1034 PPM0.11523 PPM0.9963 PPMtracetraceMAL1420.920.0441.390.0061109.850.07309.670.019MAA 0.0016 PPB 0.00111 PPBMMA13464.810.416 0.0011 PPM0.1811 PPM13464.630.821H2O2621.590.081tracetracetracetrace2621.590.16MEOH14615.330.45116.960.07914598.370.926 0.0014 PPBO255.340.00249.120.2296.21394 PPMtracetraceN2156.950.005144.580.67312.37785 PPMtracetraceC4H8-32.9692 PPM0.03153 PPM2.93186 PPMtracetraceC4H6-40.186 PPM0.0155 PPM0.1711 PPMtracetraceCO20.072 PPM0.0141 PPM0.074 PPMtracetraceHAC0.00137 PPB0.00173 PPB合计32373.511.00214.871.0015762.731.0016395.911.00总计 kg/h32373.5132373.515.7 甲基丙烯酸甲酯合成工段图5-7 甲基丙烯酸甲酯合成工段流程图表5-7甲基丙烯酸甲酯合成工段物料衡算入方出方物流编号3-202-223-13-23-133-14物流说明循环甲醇精制MAL新鲜甲醇进料空气V0303闪蒸废气V0303闪蒸液相温度 40.0066.6030.0030.0030.0030.00压力 bar4.001.303.003.0020.0020.00气化分率0.000.000.001.001.000.00摩尔流量 kmol/h472.70154.69148.861247.311189.75764.42质量流量 kg/h15762.7310356.634770.0035880.0034395.8532373.51体积流量 m3/h20.1413.116.0210466.761482.9237.29组分kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率C4H8-523.580.00137.340.00434.820.00126.10806 PPMC4H8-11.83116 PPM2.41233 PPM2.3869 PPM1.8657 PPMC4H8-20.3623 PPM0.2928 PPM0.288 PPM0.3711 PPMC4H10-25.80368 PPM13.000.00112.91375 PPM5.88182 PPMC4H10-10.9963 PPM1.51146PPM1.4041 PPM1.1034 PPMMAL1109.850.0710135.290.97996.060.0031420.920.044MAA 0.00118 PPBtracetrace 0.0016 PPBMMA0.1811 PPM430.970.01313464.810.416H2Otracetrace163.150.01641.960.0012621.590.081MEOH14598.370.9264770.001.00305.800.00914615.330.451O26.21394 PPM0.005449 PPB7534.800.215265.060.15355.340.002N212.37785 PPM0.01926 PPB28345.200.7928200.620.82156.950.005C4H8-32.93186 PPM2.75266PPM2.7279 PPM2.9692 PPMC4H6-40.1711 PPM0.1818 PPM0.175 PPM0.186 PPMCO20.074 PPM0.6664 PPM0.6519 PPM0.072 PPMHAC0.001116 PPBtracetrace0.00137 PPB合计15762.731.0010356.631.004770.001.0035880.001.0034395.851.0032373.511.00总计 kg/h66769.3666769.365.8甲基丙烯酸甲酯精制工段图5-7 甲基丙烯酸甲酯精制工段流程图表5-7甲基丙烯酸甲酯精制工段物料衡算入方出方物流编号3-334-14-24-17物流说明T0301塔底釜液补充萃取剂（环己烷）V0401罐底废水MMA产品温度 50.1050.0050.0050.00压力 bar1.011.011.011.40气化分率0.000.000.000.00摩尔流量 kmol/h284.420.13149.95134.60质量流量 kg/h16395.9011.002936.7213470.19体积流量 m3/h17.710.023.1014.86组分kg/h质量分率kg/h质量分率kg/h质量分率kg/h质量分率C4H8-5tracetracetracetraceC4H8-1tracetracetracetraceC4H8-2tracetracetracetraceC4H10-2tracetracetracetraceC4H10-1tracetracetracetraceMAL309.670.019303.340.1036.33470 PPMMAA 0.00111 PPBtrace3 PPB 0.00113 PPBMMA13464.630.82112.080.00413452.560.999H2O2621.590.162621.280.8930.3022 PPMMEOH 0.0014 PPB 0.00120 PPBO2tracetraceN2tracetraceC4H8-3tracetracetracetraceC4H6-4tracetraceCO2tracetraceHAC0.00173 PPB 0.001148 PPB0.00157 PPBC6H12-1111.00 0.00166 PPB10.99816 PPM合计16395.911.00111.002936.721.0013470.191.00总计 kg/h16406.9116406.915.9 废气废水处理工段图5-7 废气废水处理工段流程图表5-7废气废水处理工段物料衡算入方出方物流编号4-404-234-284-444-434-254-31物流说明高低压混合废气混合废水除氧水天然气烟气MAA、MAL混合液4.0MPa 高压蒸汽温度 57.6050.0050.0050.00127.550.00250.4压力 bar1.013.003.001.011.0136.0040.00气化分率1.000.000.001.001.000.001.00摩尔流量 kmol/h2783.73786.121332.299.12909.7710.552107.78质量流量 kg/h8