10-物料平衡计算书

东华科技陕鼓杯 第十二届全国大学生化工设计竞赛 宁波大榭石化异丁烯法年产10万吨MMA项目物料平衡计算书 河西学院蓝烯团队队员：王永宝 杨星 包海兵 石翎 王正铎指导老师：佟永纯 宋如 邱东目录物料平衡计算书11 概述12 物料衡算原理23 物料衡算任务24 系统物料衡算24.1 异丁烯氧化工段物料衡算24.2 甲基丙烯酸甲酯合成精制工段物料衡算94.3 甲醇回收工段物料衡算17宁波大榭石化年产10万吨MMA项目 物料平衡计算书物料平衡计算书1 概述本项目的目标是为中海油宁波大榭石化公司设计一座以异丁烯为原料生产甲基丙烯酸甲酯的分厂，以实现异丁烯资源化的充分利用。该工艺是一种绿色环保经济的工艺，项目旨在为中海油宁波大榭石化公司设计一座年产10万吨甲基丙烯酸甲酯分厂，厂区选址于浙江宁波大榭经济开发区内，符合循环经济和低碳经济的要求，具有转化率高、安全可行、节能减排等特点。异丁烯两步氧化法生产甲基丙烯酸甲酯是以异丁烯为原料，通过第一步氧化生成甲基丙烯醛，第二步氧化生成甲基丙烯酸甲酯。我们选用来自总厂的异丁烯，历经原料催化氧化工段（第一工段），甲基丙烯酸甲酯合成精制工段（第二工段），甲醇回收工段（第三工段），完成年产10万吨甲基丙烯酸甲酯项目。本项目的设计目的是资源化利用石油提炼中产生的烯烃，并获得更好的经济效益。设计过程中利用Aspen Plus V8.4对全流程进行模拟，并在此基础上完成物料衡算、能量衡算，Aspen Plus V8.4模拟流程如图1-1所示：图1-1 Aspen Plus V8.4模拟流程图2 物料衡算原理系统的物料衡算以质量守恒为理论基础，研究某一系统内进出物料量及组成的变化，即：系统累计的质量输入系统的质量输出系统的质量反应生成的质量反应消耗的质量假设系统无泄漏，有：当系统无化学反应发生时，有：在稳定状态下，有：，其中，进入系统的物料流率流出系统的物料流率反应产生物料速率反应消耗物料速率3 物料衡算任务通过对系统整体以及部分主要单元的详细物料衡算，得到主要产品、副产品的产量，处理异丁烯的消耗量，“三废”的排放量以及最后产品的质量指标等关键经济技术指标，对所选工艺路线、设计流程进行定量评述，为后阶段的设计提供依据。4 系统物料衡算4.1 异丁烯氧化工段物料衡算利用异丁烯氧化生成甲基丙烯醛，异丁烯氧化工段模拟流程图如图4-1所示：图4-1 异丁烯氧化工段模拟流程图河西学院蓝烯团队4宁波大榭石化年产10万吨MMA项目 物料平衡计算书表4-1 异丁烯氧化工段物料衡算表 0101010201030104010502010202020302040205020602080209Temperature C3002530074330802564.466.16665.599.6-54.3Pressure bar4141111111211Vapor Frac1011110101000Mass VFrac1011110101000Mole Flow kmol/hr153300150019531953195319001792.7562060.2444002060.2441909.149551.095Mass Flow kg/hr8584.4515404.58443275.59657264.6357264.6357264.6334229.03246600.27744893.38512816.86444893.38534393.85723316.393Mass Flow kg/sec2.3851.50112.02115.90715.90715.9079.50812.94512.473.5612.479.5546.477Mass Flow kg/sec2.38512.02115.90715.90715.90712.9453.56Mass Flow kg/sec1.5019.50812.4712.479.5546.477Mass Flow kg/sec9.5546.477Volume Flow cum/hr1798.4195.43717891.94156278.39197922.47857205.27334.32650239.00148.56811279.2249.78437.43825.797Enthalpy0.537-20.6182.918-17.162-24.623-29.087-129.71-24.905-133.892-19.02-133.889-127.682-28.785Density0.0050.9940.0020.0010.0010.0010.9970.0010.9240.0010.9020.9190.904C4H8153001534.0474.04703.4870.5600.5600.56O200315315166.047166.0470165.6090.43800.43800.438N200118511851185118501183.7171.28301.28301.283H2O03000300448.953448.9531900439.5671909.38701909.3871909.1490.237C4H6O0000148.953148.95300.377148.5770148.5770148.577CH4O000000000400004004.1.1 列管式反应器R0101物料衡算表4-2 列管式反应器R0101物料衡算表01010102010301040105Temperature C80808052.1360Pressure bar33343Vapor Frac1010.8731Mass VFrac1010.9221Mole Flow kmol/hr153300150019531953Mass Flow kg/hr8584.4515404.58443275.59657264.6357264.63Mass Flow kg/sec2.3851.50112.02115.90715.907Mass Flow kg/sec2.38512.02114.66715.907Mass Flow kg/sec1.5011.24Volume Flow cum/hr1425.7465.75514676.43311478.14434260.884Enthalpy Gcal/hr-0.451-20.2960.57-20.177-24.049Density gm/cc0.0060.9390.0030.0050.002C4H8153001534.039O200315315166.039N200118511851185H2O03000300448.961C4H6O0000148.9614.1.2吸收塔T0101物料衡算表4-3 吸收塔T0101物料衡算表02010202020302040206Temperature C802564.466.165.5Pressure bar11112Vapor Frac10100Mass VFrac10100Mole Flow kmol/hr195319001792.7562060.2442060.244Mass Flow kg/hr57264.6334229.03246600.27744893.38544893.385Mass Flow kg/sec15.9079.50812.94512.4712.47Mass Flow kg/sec15.90712.945Mass Flow kg/sec9.50812.4712.47Volume Flow cum/hr57205.27334.32650239.00148.56849.784Enthalpy Gcal/hr-29.087-129.71-24.905-133.892-133.889Density gm/cc0.0010.9970.0010.9240.902C4H84.04703.4870.560.56O2166.0470165.6090.4380.438N2118501183.7171.2831.283H2O448.9531900439.5671909.3871909.387C4H6O148.95300.377148.577148.577CH4O000004.1.3 共沸精馏塔T0102物料衡算表4-4 共沸精馏塔T0102物料衡算表0206020702080209Temperature C65.56699.6-54.3Pressure bar2111Vapor Frac0100Mass VFrac0100Mole Flow kmol/hr2060.2444001909.149551.095Mass Flow kg/hr44893.38512816.86434393.85723316.393Mass Flow kg/sec12.473.569.5546.477Mass Flow kg/sec3.56Mass Flow kg/sec12.479.5546.477Mass Flow kg/sec9.5546.477Volume Flow cum/hr49.78411279.2237.43825.797Enthalpy Gcal/hr-133.889-19.02-127.682-28.785Density gm/cc0.9020.0010.9190.904C4H80.56000.56O20.438000.438N21.283001.283H2O1909.38701909.1490.237C4H6O148.57700148.577CH4O04000400河西学院蓝烯团队12宁波大榭石化年产10万吨MMA项目 物料平衡计算书4.2 甲基丙烯酸甲酯合成精制工段物料衡算甲基丙烯酸甲酯合成精制工段模拟流程图如图4-2所示：图4-2 甲基丙烯酸甲酯合成精制工段模拟流程图河西学院蓝烯团队13宁波大榭石化年产10万吨MMA项目 物料平衡计算书表4-5 甲基丙烯酸甲酯合成精制工段物料衡算表03010302030303040401040204030404040604080409041004110501Temperature C3030-1.4452545.325-17.1-192.898.292.474.599.114Pressure bar11111221112112Vapor Frac0.00410.77900000000000Mass VFrac0.00310.72500000000000Mole Flow kmol/hr551.09515002051.0951976.8121001976.8123401916.8141763.469153.345153.3454.127149.218499.998Mass Flow kg/hr23316.39343275.59666591.98966591.9891801.5266591.98929300.23485158.71769889.74315268.97415268.974371.05414897.92112535.034Mass Flow kg/sec6.47712.02118.49818.4980.518.4988.13923.65519.4144.2414.2410.1034.1383.482Mass Flow kg/sec0.0212.02113.406Mass Flow kg/sec6.4575.09118.4980.518.4988.13923.65519.4144.2414.2410.1034.1383.482Mass Flow kg/sec3.482Volume Flow cum/hr80.10637789.11736042.569217.7571.812217.75744.554139.68581.75618.13817.980.55117.59314.572Enthalpy Gcal/hr-27.8870.049-27.838-38.145-6.873-38.138-16.101-29.441-22.838-13.848-13.848-0.239-13.608-31.653Density gm/cc0.2910.0010.0020.3060.9940.3060.6580.610.8550.8420.8490.6730.8470.86C4H80.5600.560.5600.5600.560.5600000O20.438315315.438241.1550241.1550241.155241.15500000N21.28311851186.2831186.28301186.28301186.2831186.28300000H2O0.23700.237148.802100148.80200.24800.2480.2480.0010.246248.554C4H6O148.5770148.5770.01200.01200.0120.01200000CH4O4000400251.4360251.4360000000251.436C5H8O2000148.5640148.5640148.5640148.564148.5641.11147.4540C6H14000000340339.992335.4584.5334.5333.0151.5180.0084.2.1 连续搅拌釜式反应器R0201物料衡算表4-6 连续搅拌釜式反应器R0201物料衡算表020903010302030303040402Temperature C-54.33030-1.44545.3Pressure bar111112Vapor Frac00.00410.77900Mass VFrac00.00310.72500Mole Flow kmol/hr551.095551.09515002051.0951976.8121976.812Mass Flow kg/hr23316.39323316.39343275.59666591.98966591.98966591.989Mass Flow kg/sec6.4776.47712.02118.49818.49818.498Mass Flow kg/sec0.0212.02113.406Mass Flow kg/sec6.4776.4575.09118.49818.498Mass Flow kg/sec6.477Volume Flow cum/hr25.79780.10637789.11736042.569217.757217.757Enthalpy Gcal/hr-28.785-27.8870.049-27.838-38.145-38.138Density gm/cc0.9040.2910.0010.0020.3060.306C4H80.560.5600.560.560.56O20.4380.438315315.438241.155241.155N21.2831.28311851186.2831186.2831186.283H2O0.2370.23700.237148.802148.802C4H6O148.577148.5770148.5770.0120.012CH4O4004000400251.436251.436C5H8O20000148.564148.564C6H140000004.2.2 萃取塔T0201物料衡算表4-7 萃取塔T0201物料衡算表04010402040304040501Temperature C2545.325-17.114Pressure bar12212Vapor Frac00000Mass VFrac00000Mole Flow kmol/hr1001976.8123401916.814499.998Mass Flow kg/hr1801.52866591.98929300.23485158.71712535.034Mass Flow kg/sec0.518.4988.13923.6553.482Mass Flow kg/sec0.518.4988.13923.6553.482Mass Flow kg/sec23.655Mass Flow kg/sec3.482Volume Flow cum/hr1.812217.75744.554139.68514.572Enthalpy Gcal/hr-6.873-38.138-16.101-29.441-31.653Density gm/cc0.9940.3060.6580.610.86C4H800.5600.560O20241.1550241.1550N201186.28301186.2830H2O100148.80200.248248.554C4H6O00.01200.0120CH4O0251.43600251.436C5H8O20148.5640148.5640C6H1400340339.9920.0084.2.3 溶剂回收塔T0202物料衡算 表4-8 溶剂回收塔T0202物料衡算表0405040604080409Temperature C-17.1-192.898.292.4Pressure bar1112Vapor Frac0000Mass VFrac0000Mole Flow kmol/hr1916.8141763.469153.345153.345Mass Flow kg/hr85158.71769889.74315268.97415268.974Mass Flow kg/sec23.65519.4144.2414.241Mass Flow kg/sec23.65519.4144.2414.241Mass Flow kg/sec23.655Volume Flow cum/hr139.68581.75618.13817.98Enthalpy Gcal/hr-29.441-22.838-13.848-13.848Density gm/cc0.610.8550.8420.849C4H80.560.5600O2241.155241.15500N21186.2831186.28300H2O0.24800.2480.248C4H6O0.0120.01200CH4O0000C5H8O2148.5640148.564148.564C6H14339.992335.4584.5334.5334.2.4 精制塔T0203物料衡算 表4-9 精制塔T0203物料衡算表040904100411Temperature C92.474.599.1Pressure bar211Vapor Frac000Mass VFrac000Mole Flow kmol/hr153.3454.127149.218Mass Flow kg/hr15268.974371.05414897.921Mass Flow kg/sec4.2410.1034.138Mass Flow kg/sec4.2410.1034.138Volume Flow cum/hr17.980.55117.593Enthalpy Gcal/hr-13.848-0.239-13.608Density gm/cc0.8490.6730.847C4H8000O2000N2000H2O0.2480.0010.246C4H6O000CH4O000C5H8O2148.5641.11147.454C6H144.5333.0151.518河西学院蓝烯团队24宁波大榭石化年产10万吨MMA项目 物料平衡计算书4.3 甲醇回收工段物料衡算甲醇回收工段模拟流程图如图4-3所示：图4-3 甲醇回收工段模拟流程图河西学院蓝烯团队25宁波大榭石化年产10万吨MMA项目 物料平衡计算书表4-10 甲醇回收工段物料衡算表050205030504050505060507050805090510Temperature C14955024.3123.164.56041.499.6Pressure bar331231221Vapor Frac000000000Mass VFrac000000000Mole Flow kmol/hr499.998199.999199.999199.999299.99952299.999299.999247.999Mass Flow kg/hr12535.0346408.5046408.5046408.5046126.5291655.9866126.5296126.5294470.543Mass Flow kg/sec3.4821.781.781.781.7020.461.7021.7021.242Mass Flow kg/sec0Mass Flow kg/sec3.4821.781.781.781.7020.461.7021.7021.242Volume Flow cum/hr14.5729.1138.4058.0747.4912.2226.9936.744.868Enthalpy Gcal/hr-31.653-11.024-11.391-11.391-19.295-2.92-19.804-19.804-16.584Density gm/cc0.860.7030.7620.7940.8180.7450.8760.9090.918C4H8000000000O2000000000N2000000000H2O248.554000248.5540.748248.554248.554247.806C4H6O000000000CH4O251.436199.997199.997199.99751.43851.24651.43851.4380.192