8-物料平衡计算书

镇海炼化5.2万吨/年甲基丙烯酸甲酯生产项目物料平衡计算书目 录1概述22物料衡算方法33物料衡算任务44物料平衡表54.1抽余C4预处理工段54.1.1抽余C4预处理工段总物料衡算表64.1.2反应精馏塔（T0101）124.1.3萃取精馏塔（T0102）144.1.4溶剂回收塔（T0103）164.1.5吸附固定床（X0101）184.2 MAL合成工段214.2.1 MAL合成工段总物料衡算表224.2.2水吸收塔（T0201）274.2.3共沸精馏塔（T0202）294.2.4 MAL合成反应器（R0101）314.2.5急冷锅炉（E0202）334.3 MMA合成与精制工段364.3.1 MMA合成与精制工段总物料衡算表374.3.2水吸收MMA塔（T0301）424.3.3 MMA合成反应器（R0301）444.3.4脱水固定床（X0302）46471概述本项目是为中国石油化工股份有限公司镇海炼化分公司新建一个年产5.2万吨甲基丙酸甲酯的分厂，位于浙江省宁波市镇海区镇海化学工业园区内。原料是来自总厂镇海炼化的抽余C4，经过抽余C4预处理工段、MAL合成工段、MMA合成与精制工段，来生产高纯度甲基丙烯酸甲酯。2物料衡算方法物料衡算是以质量守恒定律为基础，对物料平衡进行的计算。物料平衡是指“在单位时间内进入系统的全部物料质量必定等于离开该系统的全部物料质量再加上损失掉的和积累起来的物科质量”。进行物料衡算时，先必须确定衡算的体系。对于已经达到稳定的体系（进料量之和）-（出料量之和）=（系统累积量）利用上述关系，可以对整个工艺系统或子系统进行物料衡算。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下表所示：总衡算式总质量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不适用元素原子物质的量衡算式适用不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。3物料衡算任务从烟气进厂到产品输出，本项目主要工艺路线可分为如下 3个工段：抽余C4预处理工段、MAL工段、MMA合成与精制工段。对于本分厂，采取年开工 333 天（8000 小时）的连续操作，其中一年内的四五周（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MMA产品的实际产量以及质量指标；（2） 确定工艺水的循环量以及损失率等指标；（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4物料平衡表4.1抽余C4预处理工段图1-1 抽余C4预处理工段Aspen模拟流程图4.1.1抽余C4预处理工段总物料衡算表表1-1 抽余C4预处理工段总物料衡算表项目/单位进口出口流股编号010101030132014001200123012601300141流股信息氢气抽余C4新鲜萃取剂冷却水正丁烷2-丁烯异丁烯、异丁烷混合物异丁烯冷却水PhaseVaporLiquidLiquidLiquidLiquidLiquidVaporVaporLiquidTemperature3031302030.13335.98738.21257.69925.856Pressurebar17.51188771Molar Vapor Fraction100000110Molar Liquid Fraction011111001Molar Solid Fraction000000000Mass Vapor Fraction100000110Mass Liquid Fraction011111001Mass Solid Fraction000000000Molar Enthalpycal/mol34.383-12532.-68173.5-683506-34777.-6706.9-17647.1351-3964.19-68247Mass Enthalpycal/gm17.056-221.99-3784.16-3794.4-598.4-119.53-412.912-70.6716-3788.28Molar Entropycal/mol-K0.140-79.388-38.6709-39.262-105.19-76.216-61.135-62.0124-38.9145Mass Entropycal/gm-K0.0696-1.4062-2.14656-2.1792-1.8100-1.3583-1.430-1.10553-2.16008Molar Densitymol/cc3.97E-050.010240.0549040.055440.009760.010750.00020.0002540.055127Mass Density gm/cc8.00E-050.578330.9891200.998770.567550.603360.0120.014270.99313Enthalpy Flowcal/sec24.83108-55773-3555.63-3.1E+08-23031-11195-50992.73-75604.7-3.1E+08Average MW2.0158856.455018.0152818.015858.116956.108342.73856.093018.0152Mass Flows kg/hrMass Flowskg/hr5.2419044.653.38252970721385.563371.80444.5833851.294297072ALLENEkg/hr01.80893007.61E-001.803800690.005330PROPANEkg/hr01.80893002.32E-101.809631882.69E-060ISOBUTANkg/hr0343.696000.391640328.97514.33060N-BUTANEkg/hr01447.14001380.871.382260.0431623464.83250ACETYLENkg/hr04.5223200004.522002-BUTENEkg/hr0681.062000.0124812.47666.82E-060.12371101-BUTENEkg/hr02359.74000.000470.047110.0584.1022150IBkg/hr03889.2000.9433922.6415100.5123765.10CIS-2-Bkg/hr0315.6583003.338573335.253.24E-071.0338470WATERkg/hr003.382561297072001.61599881.76657297072NMPkg/hr0000002.76E-169.62E-070H2kg/hr5.241000005.24099993800O2kg/hr000000000N2 kg/hr000000000CO2kg/hr000000000MALkg/hr000000000COkg/hr000000000CH3OHkg/hr000000000MMAkg/hr000000000C2H4Okg/hr000000000HCOOCH3kg/hr000000000PROPY-01kg/hr000000000P-HYD-01kg/hr000000000CHCL3kg/hr0000000001:1:1-01kg/hr000000000Mass FractionsALLENE00.000200000.00405721.40E-00PROPANE00.000200000.00407046.99E-10ISOBUTAN00.038000.00028300.73996480.003720N-BUTANE00.16000.996610.00049.71E-050.0168340ACETYLEN00.000500000.01017198002-BUTENE00.0753009.01E-60.00371.53E-083.21E-001-BUTENE00.2609003.43E-71.40E-50.00013250.001060IB00.43000.000680.00670.22608230.977610CIS-2-B00.0349000.002410.98917.28E-100.000260WATER0011000.00363480.000451NMP00000002.50E-100H21000000.011788500O2000000000N2000000000CO2000000000MAL000000000CO000000000CH3OH000000000MMA000000000C2H4O000000000HCOOCH3000000000PROPY-01000000000P-HYD-01000000000CHCL30000000001:1:1-01000000000Volume Flow l/min1092.15260.6510.0569964957.3140.688293.139588.084784496.824985.444.1.2反应精馏塔（T0101）表1-2 反应精馏塔物料衡算表项目单位进口出口流股编号010501120116流股信息抽余C4异丁烷异丁烯正丁烷2-丁烯PhaseVaporVaporLiquidTemperature61.554.7214666.62094Pressurebar7.57.100257.116Molar Vapor Fraction110Molar Liquid Fraction001Molar Solid Fraction000Mass Vapor Fraction110Mass Liquid Fraction001Mass Solid Fraction000Molar Enthalpycal/mol-6926.21-5637.64-13449.8Mass Enthalpycal/gm-124.604-103.59-237.299Molar Entropycal/mol-K-61.8788-61.5392-79.7199Mass Entropycal/gm-K-1.11321-1.13077-1.40652Molar Densitymol/cc0.000270.000260.009697Mass Densitygm/cc0.0149830.0141750.549603Enthalpy Flowcal/sec-313237-123517-313589Average MW55.5856954.4223856.67884Mass Flowskg/hr9049.8914292.4954757.371ALLENEkg/hr1.808931.8091947.61E-09PROPANEkg/hr1.808931.8096352.32E-10ISOBUTANkg/hr343.6967343.3060.391647N-BUTANEkg/hr1447.14464.875221382.26ACETYLENkg/hr4.5223254.5222902-BUTENEkg/hr681.06210.12371812.489141-BUTENEkg/hr2359.7494.1611660.047594IBkg/hr3889.23865.61323.58496CIS-2-Bkg/hr315.65831.0338473338.597WATERkg/hr000NMPkg/hr000H2kg/hr5.2415.2410O2kg/hr000N2kg/hr000CO2kg/hr000MALkg/hr000COkg/hr000CH3OHkg/hr000MMAkg/hr000C2H4Okg/hr000HCOOCH3kg/hr000PROPY-01kg/hr000P-HYD-01kg/hr000CHCL3kg/hr0001:1:1-01kg/hr000Mass FractionsALLENE0.00020.0004211.60E-12PROPANE0.00020.0004224.88E-14ISOBUTAN0.0379780.0799788.23E-05N-BUTANE0.1599070.0151140.290551ACETYLEN0.00050.00105402-BUTENE0.0752562.88E-050.0026251-BUTENE0.2607490.0009691.00E-05IB0.4297510.9005520.004958CIS-2-B0.034880.0002410.701774WATER000NMP000H20.0005790.0012210O2000N2000CO2000MAL000CO000CH3OH000MMA000C2H4O000HCOOCH3000PROPY-01000P-HYD-01000CHCL30001:1:1-01000Volume Flowl/min10066.675047.058144.2674.1.3萃取精馏塔（T0102）表1-3 萃取精馏塔物料衡算表项目单位进口出口流股编号0124012501260127流股信息异丁烷异丁烯萃取剂异丁烷异丁烯萃取剂异丁烯PhaseMixedLiquidVaporLiquidTemperature303038.21274121.7324Pressurebar7.100257.0027577.01225Molar Vapor Fraction0.066223010Molar Liquid Fraction0.933777101Molar Solid Fraction0000Mass Vapor Fraction0.035772010Mass Liquid Fraction0.964228101Mass Solid Fraction0000Molar Enthalpycal/mol-10599.3-65642.7-17647.1-55580.7Mass Enthalpycal/gm-194.76-903.061-412.912-782.298Molar Entropycal/mol-K-76.7585-107.711-61.1358-93.5094Mass Entropycal/gm-K-1.41042-1.4818-1.43047-1.31614Molar Densitymol/cc0.0030690.0140.0002950.011925Mass Densitygm/cc0.1670321.0176410.01260.847273Enthalpy Flowcal/sec-232224-1.1E+07-50992.7-1.1E+07Average MW54.4223872.6891242.7382171.04803Mass Flowskg/hr4292.49545039.08444.583148886.99ALLENEkg/hr1.8091941.73E-071.8038010.005394PROPANEkg/hr1.8096352.00E-111.8096322.69E-06ISOBUTANkg/hr343.3060.013506328.975814.34366N-BUTANEkg/hr64.875220.2766590.04316265.10872ACETYLENkg/hr4.5222904.522295.70E-132-BUTENEkg/hr0.1237180.0003336.82E-060.1240441-BUTENEkg/hr4.1611660.0052350.058954.107451IBkg/hr3865.6130.013127100.51243765.113CIS-2-Bkg/hr1.0338471.72E-053.24E-071.033864WATERkg/hr03638.8191.6159993637.203NMPkg/hr041399.952.76E-1641399.95H2kg/hr5.24105.2414.77E-38O2kg/hr0000N2kg/hr0000CO2kg/hr0000MALkg/hr0000COkg/hr0000CH3OHkg/hr0000MMAkg/hr0000C2H4Okg/hr0000HCOOCH3kg/hr0000PROPY-01kg/hr0000P-HYD-01kg/hr0000CHCL3kg/hr00001:1:1-01kg/hr0000Mass FractionsALLENE0.0004213.83E-120.0040571.10E-07PROPANE0.0004224.43E-160.004075.51E-11ISOBUTAN0.0799783.00E-070.7399650.000293N-BUTANE0.0151146.14E-069.71E-050.001332ACETYLEN0.00105400.0101721.17E-172-BUTENE2.88E-057.38E-091.53E-082.54E-061-BUTENE0.0009691.16E-070.0001338.40E-05IB0.9005522.91E-070.2260820.077017CIS-2-B0.0002413.82E-107.28E-102.11E-05WATER00.0807920.0036350.0744NMP00.9192016.21E-190.84685H20.00122100.0117899.76E-43O20000N20000CO20000MAL0000CO0000CH3OH0000MMA0000C2H4O0000HCOOCH30000PROPY-010000P-HYD-010000CHCL300001:1:1-010000Volume Flowl/min428.31737.639588.0848961.65374.1.4溶剂回收塔（T0103）表1-4 溶剂回收塔物料衡算表项目单位进口出口流股编号012901300131流股信息萃取剂异丁烯异丁烯萃取剂PhaseLiquidVaporLiquidTemperature5657.69929202.9793Pressurebar7.0122577.00275Molar Vapor Fraction010Molar Liquid Fraction101Molar Solid Fraction000Mass Vapor Fraction010Mass Liquid Fraction101Mass Solid Fraction000Molar Enthalpycal/mol-58879.8-3964.19-58229.3Mass Enthalpycal/gm-828.733-70.6716-800.89Molar Entropycal/mol-K-100.766-62.0124-88.6138Mass Entropycal/gm-K-1.41828-1.10553-1.2188Molar Densitymol/cc0.0133380.0002540.011702Mass Densitygm/cc0.947610.0142740.850817Enthalpy Flowcal/sec-1.1E+07-75604.7-1E+07Average MW71.0480356.0930772.70569Mass Flowskg/hr48886.993851.29445035.7ALLENEkg/hr0.0053940.0053931.73E-07PROPANEkg/hr2.69E-062.69E-062.00E-11ISOBUTANkg/hr14.3436614.330160.013506N-BUTANEkg/hr65.1087264.832050.276674ACETYLENkg/hr5.70E-13002-BUTENEkg/hr0.1240440.1237110.0003331-BUTENEkg/hr4.1074514.1022150.005235IBkg/hr3765.1133765.10.013127CIS-2-Bkg/hr1.0338641.0338471.72E-05WATERkg/hr3637.2031.7665743635.436NMPkg/hr41399.959.62E-0741399.95H2kg/hr4.77E-3800O2kg/hr000N2kg/hr000CO2kg/hr000MALkg/hr000COkg/hr000CH3OHkg/hr000MMAkg/hr000C2H4Okg/hr000HCOOCH3kg/hr000PROPY-01kg/hr000P-HYD-01kg/hr000CHCL3kg/hr0001:1:1-01kg/hr000Mass FractionsALLENE1.10E-071.40E-063.83E-12PROPANE5.51E-116.99E-104.43E-16ISOBUTAN0.0002930.0037213.00E-07N-BUTANE0.0013320.0168346.14E-06ACETYLEN1.17E-17002-BUTENE2.54E-063.21E-057.38E-091-BUTENE8.40E-050.0010651.16E-07IB0.0770170.9776192.91E-07CIS-2-B2.11E-050.0002683.82E-10WATER0.07440.0004590.080723NMP0.846852.50E-100.91927H29.76E-4300O2000N2000CO2000MAL000CO000CH3OH000MMA000C2H4O000HCOOCH3000PROPY-01000P-HYD-01000CHCL30001:1:1-01000Volume Flowl/min859.82964496.821882.2054.1.5吸附固定床（X0101）表1-5 吸附固定床物料衡算表项目单位进口出口流股编号011701180121流股信息正丁烷2-丁烯正丁烷2-丁烯PhaseVaporVaporVaporTemperature404040Pressurebar333Molar Vapor Fraction111Molar Liquid Fraction000Molar Solid Fraction000Mass Vapor Fraction111Mass Liquid Fraction000Mass Solid Fraction000Molar Enthalpycal/mol-9483.62-29596.7-1504.3Mass Enthalpycal/gm-167.322-509.26-26.8106Molar Entropycal/mol-K-66.4045-88.2287-59.3772Mass Entropycal/gm-K-1.17159-1.51812-1.05826Molar Densitymol/cc0.0001150.0001150.000115Mass Densitygm/cc0.0065310.0066960.006465Enthalpy Flowcal/sec-221115-196004-25111.1Average MW56.6788458.1169356.10832Mass Flowskg/hr4757.3711385.5643371.806ALLENEkg/hr7.61E-097.61E-090PROPANEkg/hr2.32E-102.32E-100ISOBUTANkg/hr0.3916470.3916470N-BUTANEkg/hr1382.261380.8781.38226ACETYLENkg/hr0002-BUTENEkg/hr12.489140.01248912.476661-BUTENEkg/hr0.0475940.0004760.047118IBkg/hr23.584960.94339822.64156CIS-2-Bkg/hr3338.5973.3385973335.259WATERkg/hr000NMPkg/hr000H2kg/hr000O2kg/hr000N2kg/hr000CO2kg/hr000MALkg/hr000COkg/hr000CH3OHkg/hr000MMAkg/hr000C2H4Okg/hr000HCOOCH3kg/hr000PROPY-01kg/hr000P-HYD-01kg/hr000CHCL3kg/hr0001:1:1-01kg/hr000Mass FractionsALLENE1.60E-125.49E-120PROPANE4.88E-141.67E-130ISOBUTAN8.23E-050.0002830N-BUTANE0.2905510.9966180.00041ACETYLEN0002-BUTENE0.0026259.01E-060.00371-BUTENE1.00E-053.43E-071.40E-05IB0.0049580.0006810.006715CIS-2-B0.7017740.002410.989161WATER000NMP000H2000O2000N2000CO2000MAL000CO000CH3OH000MMA000C2H4O000HCOOCH3000PROPY-01000P-HYD-01000CHCL30001:1:1-01000Volume Flowl/min12140.963448.5088692.4574.2 MAL合成工段图1-2 MAL合成工段Aspen模拟流程图4.2.1 MAL合成工段总物料衡算表表1-6 MAL合成工段总物料衡算表项目单位进口出口流股编号01300201020302100215032002120218021902230224流股信息异丁烯空气水水水甲醇低压蒸汽废水废气MAL、甲醇废水PhaseVaporVaporLiquidLiquidLiquidLiquidVaporLiquidVaporVaporLiquidTemperature57.699293025302527.5170.501627.527.572.2811499.9207Pressurebar7111.013251381111.00975Molar Vapor Fraction11000010110Molar Liquid Fraction00111101001Molar Solid Fraction00000000000Mass Vapor Fraction11000010110Mass Liquid Fraction00111101001Mass Solid Fraction00000000000Molar Enthalpycal/mol-3964.19-904.941-68262.2-68173.4-68262.2-59651.1-56574.1-68214.2-3111.52-39493.9-66874.6Mass Enthalpycal/gm-70.6716-31.1937-3789.13-3784.2-3789.13-2057.46-3140.34-3784.75-109.254-844.831-3711Molar Entropycal/mol-K-62.01241.276391-38.9652-38.6709-38.9652-52.5065-11.4861-38.8190.780514-29.9991-34.8541Mass Entropycal/gm-K-1.105530.043998-2.1629-2.14656-2.1629-1.81103-0.63757-2.153810.027406-0.64172-1.93412Molar Densitymol/cc0.0002543.97E-050.0551730.0549050.0551730.0279670.0002170.0550054.00E-053.48E-050.05096Mass Densitygm/cc0.0142740.0011510.9939570.9891210.9939570.8108270.0039070.9913840.0011390.0016280.918336Enthalpy Flowcal/sec-75604.7-245641-804815-3408668-1.5E+07-1474128-2828703-1749511-820286-1680037-1.4E+07Average MW56.0930729.0103618.0152818.0152818.0152828.9925518.0152818.0234328.4797346.7476818.02068Mass Flowskg/hr3851.29428348.92764.64443242.7514051.922579.3223242.751664.10827029.047158.98913743.97ALLENEkg/hr0.00539300000.00012602.20E-050.0050020.0004953.27E-34PROPANEkg/hr2.69E-0600004.62E-0807.86E-092.53E-062.03E-073.45E-39ISOBUTANkg/hr14.3301600001.78839900.08412512.248243.7861863.44E-24N-BUTANEkg/hr64.8320500002.22232100.51881352.1790814.356484.14E-21ACETYLE