5-1附录一物料平衡计算书

扬子石化2000万Nm3/a酸性废气处理项目扬子石化2000万Nm3/a酸性废气处理项目物料平衡计算书 团队名称：点化蔚蓝指导老师：汪广恒 郭晓滨 李建伟 潘晶莹 周探伟团队人员：宋长磊 李 成 吕冠忱 张小芳 段玉娥目录第一章 总论1第二章 物料衡算的意义1第三章 物料衡算遵循的原则1第四章 物料衡算24.1 物料衡算任务24.2 MEDA脱硫提纯工段物料衡算34.3 甲硫醇合成工段物料衡算94.4甲硫醇分离纯化工段物料衡算174.5全流程衡算22I第一章 总论本项目针对总厂产生的酸性废气，通过MDEA法脱硫提纯，最终制得高纯度硫化氢，利用甲醇硫化氢气相合成法生产甲硫醇，每年废气处理量为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。第二章 物料衡算的意义在化学工程中，设计或改造工艺流程和设备，了解和控制生产操作过程，核算生产过程的经济效益，确定原材料消耗定额，确定生产过程的损耗量，对现有的工艺过程进行分析，选择最有效的工艺路线，对设备进行最佳设计以及确定最佳操作条件等都要进行物料衡算。而且，化学工程的开发与放大都以物料衡算为基础的。物料衡算是质量守恒定律的一种表现形式。凡引入某一设备的物料成分、质量或体积比等于操作后所得产物的成分、质量或体积加上物料损失。第三章 物料衡算遵循的原则1) 对一般的体系而言，物料分布均可表示为：(物料的累积率)=(物料进入率)-(物料流出率)+(反应生成率)-(反应消耗率)2) 当系统没有化学反应时，则可简化为：(物料的累积率)=(物料进入率)-(物料流出率)3) 在稳定状态下有：(物料进入率)=(物料流出率)4) 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3-1物料衡算式适用范围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总物质的量衡算式适用不适用组分衡算式组分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第四章 物料衡算4.1 物料衡算任务从酸性废气到产品输出，其工艺路线可分为如下3个步骤： 硫化氢分离提纯工段、甲硫醇合成工段、甲硫醇分离纯化工段。对于本厂，工艺采取年开工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）确定甲硫醇的实际产量以及质量指标； （2）确定硫化氢、甲醇、甲硫醇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4.2硫化氢分离提纯工段物料衡算 图4.1硫化氢分离提纯工段流程图由工艺流程图可知，硫化氢分离提纯提纯工段有混合罐、精馏塔等重要单元过程，需要对它们进行物料衡算。表4-1 一级吸收、解吸塔（T0101、T0102）前后物流结果表进出口inout流股信息酸性废气MDEA水尾气硫化氢废水流股编号Units101102103105111112Mass Flowskg/hr6613.160.1387548.84561585.22464989.8193587.1239MDEAkg/hr00.138700.00073431.03E-102.59E-05H2Okg/hr99.80760548.845641.09884224.927636582.625CO2kg/hr1643.45001384.1207259.250940.073993H2Skg/hr4709.04000.05736414704.72884.245064H3O+kg/hr001.75E-067.76E-121.80E-100.000111OH-kg/hr001.56E-068.78E-108.89E-155.00E-09HCO3-kg/hr0000.00116018.65E-090.004505CO3-2kg/hr0004.49E-054.04E-141.98E-08HS-kg/hr0004.95E-086.64E-080.036037S-2kg/hr0004.62E-124.74E-162.48E-10MDEAH+kg/hr0000.00246492.57E-070.139107N2kg/hr000000O2kg/hr000000COkg/hr000000H2kg/hr000000CH4kg/hr89.86230089.3551430.50717386.11E-06C2H6kg/hr70.9930070.5881640.40480327.17E-06CH4Okg/hr000000CH4Skg/hr000000C2H6Skg/hr000000C2H6Okg/hr000000PhaseVaporLiquidLiquidMixedMixedLiquidTemperature40404040.1587651515.46976Pressurebar1.613251.61331.613251.313251.813251.81325Enthalpy FlowGcal/hr-4.6369-1.00E-04-2.07164-3.228627-1.32979-2.21479Mole Flowskmol/hr189.0140.001230.4655641.650646145.3614632.46917表4-2混合罐(V0101)前后物流结果表进出口inout流股信息MDEA水贫液溶液流股编号Units102103108106MDEAkg/hr0.1387046432.59-68.9671H2Okg/hr0548.84563149968.3-613.537CO2kg/hr008.26E-108896.09H2Skg/hr000.09417755.08583H3O+kg/hr01.75E-061.47E-061.73E-05OH-kg/hr01.56E-067.4728540.094641HCO3-kg/hr007.75E-0758.12846CO3-2kg/hr004.74E-0719.1655HS-kg/hr0071.85084584.331S-2kg/hr001.5691595.398476MDEAH+kg/hr00325.620116888.84N2kg/hr0000O2kg/hr0000COkg/hr0000H2kg/hr0000CH4kg/hr0000.507174C2H6kg/hr0000.404805CH4Okg/hr0000CH4Skg/hr0000C2H6Skg/hr0000C2H6Okg/hr0000PhaseLiquidLiquidLiquidLiquidTemperature404095.5210846.31922Pressurebar1.61331.613251.613251.31325Enthalpy FlowGcal/hr-1.00E-04-2.071636-600.1321Mole Flowskmol/hr0.001230.4655628719.5330表4-3 二级吸收、解吸塔（T0103、T0104）前后物流结果进出口inout流股信息废气MDEA水废气硫化氢废水流股编号114115116118124125Mass Flowskg/hr4989.8190.0871473367.48966245.36034746.6571365.38313MDEAkg/hr2.55E-070.087147300.0001071.03E-101.68E-05H2Okg/hr24.927640367.489665.93029923.964668362.52213CO2kg/hr259.250900238.321120.9260920.0038599H2Skg/hr4704.729000.1972444701.76532.7449163H3O+kg/hr001.17E-061.28E-121.69E-106.68E-05OH-kg/hr001.05E-061.20E-108.88E-153.22E-09HCO3-kg/hr0000.0001857.25E-100.0002435CO3-2kg/hr0006.82E-063.50E-151.11E-09HS-kg/hr0001.65E-076.90E-080.0241379S-2kg/hr0001.45E-115.08E-161.72E-10MDEAH+kg/hr0000.0003932.51E-070.0877591N2kg/hr000000O2kg/hr000000COkg/hr000000H2kg/hr000000CH4kg/hr0.507174000.5065860.00058824.59E-09C2H6kg/hr0.404803000.4043210.00048215.53E-09CH4Okg/hr000000CH4Skg/hr000000C2H6Skg/hr000000C2H6Okg/hr000000PhaseVaporLiquidLiquidMixedMixedLiquidTemperature404040401515Pressurebar1.61.613251.613251.31.81.8Enthalpy Flowkw-1511.01-0.091962-1613.199-614.166-948.8684-1602.648Mole Flowskmol/hr145.36150.000731320.3987765.795183139.7607720.205131表4-4 混合罐(V0102)前后物流结果表进出口inout流股信息MDEA水贫液MDEA溶液流股编号0115011601060119Mass Flowskg/hr0.0871473367.4897197356MDEAkg/hr0.08714730464680.248906H2Okg/hr0367.48971505220.74979CO2kg/hr003.521E-112.027E-17H2Skg/hr000.020174.695E-08H3O+kg/hr01.17E-061.2502E-074.1677E-13OH-kg/hr01.04E-062.71711.951E-05HCO3-kg/hr003.43114E-072.686E-13CO3-2kg/hr008.99752E-079.6654E-13HS-kg/hr0072.68670.0002404S-2kg/hr000.82823.73E-06MDEAH+kg/hr00289.50220.001039N2kg/hr0000O2kg/hr0000COkg/hr0000H2kg/hr0000CH4kg/hr0007.5893E-16C2H6kg/hr0000CH4Okg/hr0000CH4Skg/hr0000C2H6Skg/hr0000C2H6Okg/hr0000PhaseLiquidLiquidLiquidLiquidTemperature40404040Pressurebar1.613251.613251.61.3Enthalpy FlowGcal/hr-7.91E-05-1.3871-612.12890Mole Flowskmol/hr0.000731320.398788749.99923870.28表4-5 硫化氢分离提纯工段总物料衡算（一）进口in流股信息废气MDEA水MDEA水流股编号01010102010301150116Mass Flowskg/hr6613.1550.138701548.845630.08714727367.48966MDEAkg/hr00.13870100.087147270H2Okg/hr99.80764540548.845630367.48966CO2kg/hr1643.450630000H2Skg/hr4709.041670000H3O+kg/hr001.745E-0601.169E-06OH-kg/hr001.56E-0601.045E-06HCO3-kg/hr00000CO3-2kg/hr00000HS-kg/hr00000S-2kg/hr00000MDEAH+kg/hr00000N2kg/hr00000O2kg/hr00000COkg/hr00000H2kg/hr00000CH4kg/hr89.8623170000C2H6kg/hr70.99296910000CH4Okg/hr00000CH4Skg/hr00000C2H6Skg/hr00000C2H6Okg/hr00000PhaseVaporLiquidLiquidLiquidLiquidTemperature4040404040Pressurebar1.613251.613251.613251.613251.61325Enthalpy Flowkw-5392.724-0.14636-2409.3122-0.0919623-1613.199Mole Flowskmol/hr189.013860.00116430.4655620.0007313220.398776表4-6 硫化氢分离提纯工段总物料衡算（二）出口out流股信息尾气废水废气硫化氢废水流股编号01050112011801240125Mass Flowskg/hr1585.22458587.1239245.360284746.65709365.38313MDEAkg/hr0.000734262.59E-050.00010731.033E-101.684E-05H2Okg/hr41.0988417582.6255.930299223.964668362.52213CO2kg/hr1384.120670.073993238.3211420.92609210.0038599H2Skg/hr0.057364144.2450640.19724364701.765262.7449163H3O+kg/hr7.7641E-120.0001111.276E-121.6866E-106.678E-05OH-kg/hr8.782E-105E-091.204E-108.8767E-153.215E-09HCO3-kg/hr0.001160120.0045050.00018527.2491E-100.0002435CO3-2kg/hr4.4934E-051.98E-086.82E-063.4956E-151.11E-09HS-kg/hr4.9508E-080.0360371.648E-076.8952E-080.0241379S-2kg/hr4.622E-122.48E-101.448E-115.0801E-161.72E-10MDEAH+kg/hr0.002464940.1391070.00039262.5089E-070.0877591N2kg/hr00000O2kg/hr00000COkg/hr00000H2kg/hr00000CH4kg/hr89.35514256.11E-060.50658560.000588174.589E-09C2H6kg/hr70.58816427.17E-060.40432110.000482125.526E-09CH4Okg/hr00000CH4Skg/hr00000C2H6Skg/hr00000C2H6Okg/hr00000PhaseMixedLiquidMixedMixedLiquidTemperature4015.46976401515Pressurebar1.31.813251.31.81.8Enthalpy Flowkw-3754.89355-2575.8-614.1657-948.86844-1602.648Mole Flowskmol/hr41.650645632.469175.7951831139.76076620.2051314.3 甲硫醇合成工段物料衡算图4.2 甲硫醇合成工段流程图由工艺流程图可知，甲硫醇合成工段有混合罐、反应器、精馏塔、吸收塔等重要单元过程，需要对它们进行物料衡算。表4-7 混合罐(V0201)前后物流结果表进出口inout流股信息硫化氢循坏的硫化氢循坏的硫化氢进反应器的硫化氢流股编号0204023102320205Mass Flowskg/hr4746.6575284.7490932401.684612433.26MDEAkg/hr2.488E-0702.20E-272.49E-07H2Okg/hr23.9641.1381004720.000135225.10293CO2kg/hr20.9262616.672747566.625133204.375H2Skg/hr4701.7651399.2819641059.68627160.751H3O+kg/hr02.12E-295.60E-1052.12E-29OH-kg/hr07.77E-3807.77E-38HCO3-kg/hr04.83E-301.28E-1054.83E-30CO3-2kg/hr01.67E-3701.67E-37HS-kg/hr03.42E-299.05E-1053.42E-29S-2kg/hr0000MDEAH+kg/hr0000N2kg/hr0000O2kg/hr0000COkg/hr0000H2kg/hr0000CH4kg/hr0.0005880.0047996850.00027950.005667C2H6kg/hr0.0004821.3316792050.49150731.823393CH4Okg/hr0292.85028637.0599763299.9146CH4Skg/hr0891.6054413653.376181544.978C2H6Skg/hr01.1596453860.2413741.400878C2H6Okg/hr080.70442836114.2038194.9081PhaseVaporVaporVaporVaporTemperature60553152Pressurebar8888Enthalpy Flowkw-885.131-7414.08701-1807.021-10106.6Mole Flowskmol/hr139.760130.063960.268131330.0968表4-8 反应器(R0201)前后物流结果表进出口inout流股信息硫化氢、甲醇粗产品流股编号02080209Mass Flowskg/hr16662.8243416662.82434MDEAkg/hr2.49E-072.49E-07H2Okg/hr25.102925712548.050076CO2kg/hr3204.3751083204.375108H2Skg/hr7160.7505142460.539243H3O+kg/hr2.12E-292.12E-29OH-kg/hr7.77E-387.77E-38HCO3-kg/hr4.83E-304.83E-30CO3-2kg/hr1.67E-371.67E-37HS-kg/hr3.42E-293.42E-29S-2kg/hr00MDEAH+kg/hr00N2kg/hr00O2kg/hr00COkg/hr00H2kg/hr00CH4kg/hr0.0056674040.005667404C2H6kg/hr1.8233927581.823392758CH4Okg/hr4529.47969618.91210489CH4Skg/hr1544.9780638111.768783C2H6Skg/hr1.40087764489.04527251C2H6Okg/hr194.9080991228.304696PhaseVaporVaporTemperature170360Pressurebar1110Enthalpy Flowkw-16784.26337-17228.84377Mole Flowskmol/hr462.0968394462.0968394表4-9 气液分离罐(V0203)前后物流结果表进出口inout流股信息粗产品尾气产品混合物流股编号021302140215Mass Flowskg/hr16662.826777.3619885.464MDEAkg/hr2.49E-072.20E-122.49E-07H2Okg/hr2548.0536.652572511.398CO2kg/hr3204.3752823.748380.6269H2Skg/hr2460.5391750.968709.5714H3O+kg/hr2.12E-2900OH-kg/hr7.77E-3800HCO3-kg/hr4.83E-3000CO3-2kg/hr1.67E-3700HS-kg/hr3.42E-2900S-2kg/hr000MDEAH+kg/hr000N2kg/hr000O2kg/hr000COkg/hr000H2kg/hr000CH4kg/hr0.0056670.0054710.000196C2H6kg/hr1.8233931.4901580.333235CH4Okg/hr18.91212.78186516.13024CH4Skg/hr8111.7692046.5886065.181C2H6Skg/hr89.045279.79998879.24528C2H6Okg/hr228.3047105.3262122.9785PhaseMixedVaporLiquidTemperature607070Pressurebar7.711.5911.59Enthalpy Flowkw-21453-7756.18-13696.8Mole Flowskmol/hr462.0968162.6932299.4036表4-10 一级尾气吸收塔(T0201)前后物流结果表进出口inout流股信息尾气甲醇溶液尾气吸收液流股编号0214022102300220Mass Flowskg/hr6777.3613778.9546039.7134516.601MDEAkg/hr2.20E-12000H2Okg/hr36.6525739.099591.30068674.45148CO2kg/hr2823.748352.73372990.483185.9988H2Skg/hr1750.968199.89571599.179351.6842H3O+kg/hr00.001142.42E-290.00114OH-kg/hr04.18E-128.88E-384.18E-12HCO3-kg/hr00.000265.52E-300.00026CO3-2kg/hr08.99E-121.91E-378.99E-12HS-kg/hr00.0018413.91E-290.001841S-2kg/hr09.91E-1400MDEAH+kg/hr0000N2kg/hr0000O2kg/hr0000COkg/hr0000H2kg/hr0000CH4kg/hr0.0054719.74E-050.0054858.3E-05C2H6kg/hr1.4901580.1900511.5219190.158289CH4Okg/hr2.7818653046.964334.6862715.06CH4Skg/hr2046.588127.39381018.9781155.004C2H6Skg/hr9.7999881.1457621.3253099.620441C2H6Okg/hr105.326211.5278492.2336324.62042PhaseVaporMixedVaporLiquidTemperature70155552Pressurebar11.59888Enthalpy Flowkw-7756.18-7455.31-8473.24-6738.25Mole Flowskmol/hr162.6932114.0659148.6445128.1146表4-11 二级尾气吸收塔(T020)前后物流结果表进出口inout流股信息甲醇尾气吸收液二级尾气流股编号0226022302240225Mass Flowskg/hr3045.373754.98513778.95421.40364034MDEAkg/hr4.84E-52000H2Okg/hr38.939230.16258939.100750.001069535CO2kg/hr0373.8318352.733921.09796081H2Skg/hr3.87E-11199.8978199.89760.000153817H3O+kg/hr03.03E-3000OH-kg/hr01.11E-3800HCO3-kg/hr06.9E-3100CO3-2kg/hr02.39E-3800HS-kg/hr04.89E-3000S-2kg/hr0000MDEAH+kg/hr0000N2kg/hr0000O2kg/hr0000COkg/hr0000H2kg/hr0000CH4kg/hr00.0006869.74E-050.000588244C2H6kg/hr00.1902380.1900510.000186728CH4Okg/hr3005.4341.836373046.9640.301688352CH4Skg/hr0.022102127.3718127.39388.98E-05C2H6Skg/hr0.9816440.1656451.1457620.001527523C2H6Okg/hr5.44E-0811.5282211.527840.000375497PhaseLiquidVaporLiquidVaporTemperature17553926Pressurebar8888Enthalpy Flowkw-6402.15-1059.2-7408.36-52.92685534Mole Flowskmol/hr95.9738118.58105114.06590.488949052表4-12 混合罐(V0204)前后物流结果表进出口inout流股信息吸收液粗产品混合粗产品流股编号022002150227Mass Flowskg/hr4516.6019885.46414402.07MDEAkg/hr02.49E-072.49E-07H2Okg/hr74.451482511.3982585.849CO2kg/hr185.9988380.6269566.6256H2Skg/hr351.6842709.57141061.256H3O+kg/hr0.0011400.00114OH-kg/hr4.18E-1204.18E-12HCO3-kg/hr0.0002600.00026CO3-2kg/hr8.99E-1208.99E-12HS-kg/hr0.00184100.001841S-2kg/hr000MDEAH+kg/hr000N2kg/hr000O2kg/hr000COkg/hr000H2kg/hr000CH4kg/hr8.3E-050.0001960.000279C2H6kg/hr0.1582890.3332350.491525CH4Okg/hr2715.0616.130242731.19CH4Skg/hr1155.0046065.1817220.185C2H6Skg/hr9.62044179.2452888.86573C2H6Okg/hr24.62042122.9785147.5989PhaseLiquidLiquidLiquidTemperatureC527065Pressurebar8118Enthalpy Flowkw-6738.25-13696.8-20435.1Mole Flowskmol/hr128.1146299.4036427.5182表4-13 脱硫塔(T0203)前后物流结果表进出口inout流股信息粗产品酸性气体产品流股编号022702320229Mass Flowskg/hr14402.072401.68512000.38MDEAkg/hr2.49E-072.2E-272.49E-07H2Okg/hr2585.8490.0001352585.849CO2kg/hr566.6256566.62510.000511H2Skg/hr1061.2561059.6861.569367H3O+kg/hr0.001145.6E-1050.00114OH-kg/hr4.18E-1200HCO3-kg/hr0.000261.3E-1050.00026CO3-2kg/hr8.99E-1200HS-kg/hr0.0018419.1E-1050.001841S-2kg/hr000MDEAH+kg/hr000N2kg/hr000O2kg/hr000COkg/hr000H2kg/hr000CH4kg/hr0.0002790.0002796.17E-14C2H6kg/hr0.4915250.4915071.73E-05CH4Okg/hr2731.197.0599762724.13CH4Skg/hr7220.185653.37626566.809C2H6Skg/hr88.865730.24137488.62435C2H6Okg/hr147.5989114.203833.3951PhaseLiquidVaporLiquidTemperature653198Pressurebar888Enthalpy Flowkw-20435.1-1807.02-18109.8Mole Flowskmol/hr427.518260.26813367.2501表4-14 混合罐(V0205)前后物流结果表进出口inout流股信息甲醇甲醇混合甲醇流股编号022202180226Mass Flowskg/hr7302315.373045.373MDEAkg/hr04.84E-524.84E-52H2Okg/hr038.93738.93923CO2kg/hr000H2Skg/hr03.87E-113.87E-11H3O+kg/hr000OH-kg/hr000HCO3-kg/hr000CO3-2kg/hr000HS-kg/hr000S-2kg/hr000MDEAH+kg/hr000N2kg/hr000O2kg/hr000COkg/hr000H2kg/hr000CH4kg/hr0