附录1 物料平衡计算书

700万立方米/年含硫废气处理联产硫磺及甲醇项目 物料衡算计算书物料平衡计算书 中南大学PIE团队 22目 录物料平衡计算书11.1 总论11.2 物料衡算的原理和准则11.3 总项目核算21.3.1 物料衡算任务21.3.2 Claus硫磺回收工段21.3.3 SCOT尾气处理工段81.3.4 制冷工段161.3.5 碳捕集工段18物料平衡计算书1.1 总论项目为重庆天然气净化厂分厂为700万立方米/年含硫废气处理副产3万吨硫磺项目。在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，技术上是否先进，为后阶段的设计提供数据。1.2 物料衡算的原理和准则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，通常满足以下关系：（进料量之和）-（出料量之和）=（系统累积量）当系统中有化学反应时可表示为：（进料量之和）-（出料量之和）+（反应消耗量）-（反应生成量）=（系统累积量）利用以上两个关系，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表1-1所示：表1-1 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适用元素原子物质的质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。1.3 总项目核算 从原料入厂到产品输出，其工艺路线可分为如下4个步骤：即Claus硫磺回收工段、SCOT尾气处理工段、制冷工段、碳捕集工段。1.3.1 物料衡算任务对于本厂，工艺采取年开工330天（7920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：确定硫磺的实际产量以及质量指标；确定原料的循环量以及损失率等指标；确定工艺中的“三废”排放量等公共经济指标；各主要单元过程的物料衡算，并指导工艺设备的尺寸确定；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。1.3.2 Claus硫磺回收工段图1-1 Claus硫磺回收工段工艺路线图表1-2 Claus硫磺回收工段总物料衡算INOUTUnitsS0101S0103S0120S0122S0119S0121PhaseVaporVaporVaporVaporLiquidVaporTemperatureC38.870100110121.1931121.1931Pressurebar6625.522Molar Vapor Fraction111101Enthalpy FlowGcal/hr-9.00.10.0-14.80.1-0.1Mass Enthalpykcal/kg-1186.69.617.8-1197.634.9-305.8Mass Densitykg/cum9.26.21.95.1505.51.8Mass Flowskg/hr7588.57998.7288.512376.13342.6384.9H2kg/hr0.30.00.01.80.00.0H2Okg/hr0.00.00.01986.00.08.8CO2kg/hr3980.70.00.04063.70.046.0CS2kg/hr0.00.00.00.00.00.0COSkg/hr41.50.00.041.21.30.0H2Skg/hr3527.10.00.050.43.50.0SO2kg/hr0.00.00.014.67.60.0S2kg/hr0.00.00.00.00.00.0S6kg/hr0.00.00.03.30.00.0S8kg/hr0.00.00.0120.73330.20.0O2kg/hr0.01863.067.20.00.067.2N2kg/hr0.06135.6221.36094.30.0262.8CH4kg/hr3.00.00.00.00.00.0C2H4kg/hr35.90.00.00.00.00.0Volume Flowcum/hr820.41291.6154.32421.16.6212.4表1-3 燃烧炉（R-0101）物料衡算INOUTUnitsS0102S0103S0104PhaseVaporVaporVaporTemperatureC39.070.01115.3Pressurebar6.06.06.0Molar Vapor Fraction1.01.01.0Enthalpy FlowGcal/hr-9.10.1-9.0Mass Flowskg/hr7816.47998.715815.1H2kg/hr0.30.01.8H2Okg/hr8.30.01500.8CO2kg/hr3989.50.04070.6COSkg/hr41.50.095.9H2Skg/hr3737.80.0988.5SO2kg/hr0.00.0929.1S2kg/hr0.00.02092.6O2kg/hr0.01863.00.0N2kg/hr0.26135.66135.8CH4kg/hr3.00.00.0C2H4kg/hr35.90.00.0Volume Flowcum/hr849.41291.69126.5表1-4 一级Claus反应器（R-0102）物料衡算INOUTUnitsS0108S0109PhaseVaporVaporTemperatureC250.0336.2Pressurebar5.75.7Molar Vapor Fraction1.01.0Enthalpy FlowGcal/hr-13.8-13.8Volume Flowcum/hr3352.73845.4Mass Flowskg/hr14353.414353.4H2kg/hr1.81.8H2Okg/hr1497.81981.3CO2kg/hr4053.34084.5COSkg/hr95.352.7H2Skg/hr985.370.7SO2kg/hr922.039.6S2kg/hr0.25.8S6kg/hr95.4452.2S8kg/hr582.91545.3N2kg/hr6119.46119.4表1-5 二级Claus反应器（R-0103）物料衡算INOUTUnitsS0108S0109PhaseVaporVaporTemperatureC250.0336.2Pressurebar5.75.7Molar Vapor Fraction1.01.0Enthalpy FlowGcal/hr-13.8-13.8Volume Flowcum/hr3352.73845.4Mass Flowskg/hr14353.414353.4H2kg/hr1.81.8H2Okg/hr1497.81981.3CO2kg/hr4053.34084.5COSkg/hr95.352.7H2Skg/hr985.370.7SO2kg/hr922.039.6S2kg/hr0.25.8S6kg/hr95.4452.2S8kg/hr582.91545.3N2kg/hr6119.46119.4表1-6 混合器（M-0101）物料衡算INOUTUnitsS0115S0116S0117S0118PhaseLiquidLiquidLiquidMixedTemperatureC140.0120.0110.0128.3Pressurebar5.85.65.55.5Molar Vapor Fraction0.00.00.00.0Enthalpy FlowGcal/hr0.00.00.00.0Mass Flowskg/hr1461.71834.4142.93439.0H2kg/hr0.00.00.00.0H2Okg/hr3.05.40.48.8CO2kg/hr17.426.42.346.0COSkg/hr0.70.60.01.3H2Skg/hr3.20.30.03.5SO2kg/hr7.10.50.07.6S2kg/hr0.00.00.00.0S6kg/hr7.06.00.40.0S8kg/hr1407.11772.0137.93330.2O2kg/hr0.00.00.00.0N2kg/hr16.423.21.941.5Volume Flowcum/hr3.13.60.37.6表1-7 硫磺槽（S-0103）物料衡算INOUTUnitsS0118S0120S0119S0121PhaseMixedVaporLiquidVaporTemperatureC128.3100.0121.2121.2Pressurebar5.52.02.02.0Molar Vapor Fraction0.01.00.01.0Enthalpy FlowGcal/hr0.00.00.1-0.1Mass Flowskg/hr3439.0288.53342.6384.9H2kg/hr0.00.00.00.0H2Okg/hr8.80.00.08.8CO2kg/hr46.00.00.046.0COSkg/hr1.30.01.30.0H2Skg/hr3.50.03.50.0SO2kg/hr7.60.07.60.0S2kg/hr0.00.00.00.0S6kg/hr0.00.00.00.0S8kg/hr3330.20.03330.20.0O2kg/hr0.067.20.067.2N2kg/hr41.5221.30.0262.8338Volume Flowcum/hr7.6154.36.6212.4236表1-8 废热锅炉（E-0101）物料衡算INOUTUnitsS0104S0301S0105S0302PhaseVaporLiquidVaporVaporTemperatureC1115.3210.0350.0450.0Pressurebar6.040.05.945.0Molar Vapor Fraction1.00.01.01.0Enthalpy FlowGcal/hr-9.0-26.3-13.2-22.0Mass Flowskg/hr15815.17298.215815.17298.2H2kg/hr1.80.01.80.0H2Okg/hr1500.87298.21500.87298.2CO2kg/hr4070.60.04070.60.0COSkg/hr95.90.095.90.0H2Skg/hr988.50.0988.50.0SO2kg/hr929.10.0929.10.0S2kg/hr2092.60.09.10.0S6kg/hr0.00.0511.50.0S8kg/hr0.00.01571.90.0O2kg/hr0.00.00.00.0N2kg/hr6135.80.06135.80.0Volume Flowcum/hr9126.58.53934.8513.41.3.3 SCOT尾气处理工段图1-2 SCOT尾气处理工段工艺路线图表1-9 SCOT加氢反应器（R-0201）物料衡算INOUTUnitsS0203S0204PhaseVaporVaporTemperatureC220.0234.1Enthalpy FlowGcal/hr-14.4-14.4Mass Flowskg/hr12394.212394.6H2kg/hr19.910.7H2Okg/hr1986.01982.0CO2kg/hr4063.74093.9COSkg/hr41.20.0H2Skg/hr50.4213.7SO2kg/hr14.60.0S2kg/hr0.00.0S6kg/hr0.00.0S8kg/hr124.00.0O2kg/hr0.00.0N2kg/hr6094.36094.3Volume Flowcum/hr3207.73295.7表1-10 急冷塔（T-0201）物料衡算INOUTUnitsS0205S0211S0207S0212PhaseVaporMixedLiquidVaporTemperatureC120.09.871.839.8Enthalpy FlowGcal/hr-14.8-70.1-75.0-10.0Mass Flowskg/hr12394.618543.320149.910788.0H2kg/hr10.70.00.010.7H2Okg/hr1982.018300.519886.0396.4CO2kg/hr4093.9202.2219.64076.4COSkg/hr0.00.00.00.0H2Skg/hr213.729.331.8211.2HS-kg/hr0.00.00.00.0HCO3-kg/hr0.00.20.40.0CO3-2kg/hr0.00.00.00.0H3O+kg/hr0.00.10.10.0OH-kg/hr0.00.00.00.0S2-kg/hr0.00.00.00.0O2kg/hr0.00.00.00.0N2kg/hr6094.310.911.96093.3Volume Flowcum/hr2595.563.721.07761.7表1-11 急冷塔循环泵（P-0201）物料衡算INOUTUnitsS0206S0207PhaseLiquidLiquidTemperatureC70.771.8Enthalpy FlowGcal/hr-75.0-75.0Mass Flowskg/hr20149.920149.9H2kg/hr0.00.0H2Okg/hr19886.119886.0CO2kg/hr219.8219.6COSkg/hr0.00.0H2Skg/hr31.831.8HS-kg/hr0.00.0HCO3-kg/hr0.20.4CO3-2kg/hr0.00.0H3O+kg/hr0.10.1OH-kg/hr0.00.0S2-kg/hr0.00.0O2kg/hr0.00.0N2kg/hr11.911.9Volume Flowcum/hr20.921.0表1-12 尾气压缩机（C-0201）物料衡算INOUTUnitsS0212S0213PhaseVaporVaporTemperatureC39.81408234.9Enthalpy FlowGcal/hr-10.0-9.4Mass Flowskg/hr10788.010788.0H2kg/hr10.710.7H2Okg/hr396.4396.4CO2kg/hr4076.44076.4COSkg/hr0.00.0H2Skg/hr211.2211.2HS-kg/hr0.00.0HCO3-kg/hr0.00.0CO3-2kg/hr0.00.0H3O+kg/hr0.00.0OH-kg/hr0.00.0O2kg/hr0.00.0N2kg/hr6093.36093.3Volume Flowcum/hr7761.72901.6表1-13 气液分离器（F-0201）物料衡算INOUTUnitsS0215S0217S0219PhaseMixedLiquidVaporTemperatureC40.040.040.0Enthalpy FlowGcal/hr-10.2-1.2-9.0Mass Flowskg/hr10788.0305.910482.1H2kg/hr10.70.010.7H2Okg/hr396.4305.491.0CO2kg/hr4076.40.44075.9COSkg/hr0.00.00.0H2Skg/hr211.20.1211.1HS-kg/hr0.00.00.0HCO3-kg/hr0.00.00.0CO3-2kg/hr0.00.00.0H3O+kg/hr0.00.00.0OH-kg/hr0.00.00.0S2-kg/hr0.00.00.0O2kg/hr0.00.00.0N2kg/hr6093.30.06093.3Volume Flowcum/hr1690.70.31690.4表1-14 吸收塔（T-0202）物料衡算INOUTUnitsS0219S0220S0221S0233PhaseVaporLiquidLiquidMixedTemperatureC40.024.843.435.1Pressurebar5.05.05.04.9Molar Vapor Fraction1.00.00.01.0Enthalpy FlowGcal/hr-9.0-15.1-15.2-8.9Mass Flowskg/hr10482.15272.85519.810235.5H2kg/hr10.70.00.010.7H2Okg/hr91.03511.83538.265.0CO2kg/hr4075.90.09.54066.5COSkg/hr0.00.00.00.0H2Skg/hr211.10.01.10.1MDEAkg/hr0.01659.9932.30.0MDEAH+kg/hr0.075.1808.70.0HS-kg/hr0.05.0208.60.0HCO3-kg/hr0.013.616.90.0CO3-2kg/hr0.07.54.30.0H3O+kg/hr0.00.00.00.0OH-kg/hr0.00.00.00.0S2-kg/hr0.00.00.00.0O2kg/hr0.00.00.00.0N2kg/hr6093.30.00.26093.2Volume Flowcum/hr1690.45.35.81657.5表1-15 再生塔（T-0203）物料衡算INOUTUnitsS0222S0223S0226PhaseMixedVaporLiquidTemperatureC90.085.9104.1Enthalpy FlowGcal/hr-15.0-0.6-14.2Mass Flowskg/hr5519.8393.05126.8H2kg/hr0.00.00.0H2Okg/hr3534.6173.03364.8CO2kg/hr0.98.70.0CS2kg/hr0.00.00.0COSkg/hr0.00.00.0H2Skg/hr7.6211.10.0SO2kg/hr0.00.00.0S2kg/hr0.00.00.0S6kg/hr0.00.00.0S8kg/hr0.00.00.0MDEAkg/hr937.20.01663.0MDEAH+kg/hr803.80.071.8HS-kg/hr202.30.04.9HCO3-kg/hr31.60.017.6CO3-2kg/hr1.60.04.7H3O+kg/hr0.00.00.0OH-kg/hr0.00.00.1S2-kg/hr0.00.00.0O2kg/hr0.00.00.0N2kg/hr0.20.20.0CH4kg/hr0.00.00.0C2H4kg/hr0.00.00.0Volume Flowcum/hr6.0474.65.4表1-16 吸收剂混合器（M-0204）物料衡算INOUTUnitsS0225S0229S0230S0231PhaseLiquidLiquidLiquidLiquidTemperatureC38.054.525.052.7Enthalpy FlowGcal/hr-0.6-13.7-0.7-14.9Mass Flowskg/hr165.04870.5237.35272.8H2kg/hr0.00.00.00.0H2Okg/hr164.63196.6150.53511.8CO2kg/hr0.00.00.00.0COSkg/hr0.00.00.00.0H2Skg/hr0.40.00.00.0MDEAkg/hr0.01568.886.71654.7MDEAH+kg/hr0.079.40.180.3HS-kg/hr0.04.60.05.0HCO3-kg/hr0.010.80.011.0CO3-2kg/hr0.010.30.010.0H3O+kg/hr0.00.00.00.0OH-kg/hr0.00.00.00.0S2-kg/hr0.00.00.00.0N2kg/hr0.00.00.00.0Volume Flowcum/hr0.24.90.25.4表1-17 吸收塔进料泵（P-0202）物料衡算INOUTUnitsS0232S0220PhaseLiquidLiquidTemperatureC24.724.8Enthalpy FlowGcal/hr-15.1-15.1Mass Flowskg/hr5272.85272.8H2kg/hr0.00.0H2Okg/hr3511.83511.8CO2kg/hr0.00.0COSkg/hr0.00.0H2Skg/hr0.00.0MDEAkg/hr1659.91659.9MDEAH+kg/hr75.175.1HS-kg/hr5.05.0HCO3-kg/hr13.613.6CO3-2kg/hr7.57.5H3O+kg/hr0.00.0OH-kg/hr0.00.0S2-kg/hr0.00.0N2kg/hr0.00.0Volume Flowcum/hr5.35.3表1-18 尾气燃烧炉（R-0202）物料衡算INOUTUnitsS0233S0234S0235PhaseMixedVaporVaporTemperatureC35.125.0150.7Enthalpy FlowGcal/hr-8.90.0-8.9Mass Flowskg/hr10235.5571.110806.6H2kg/hr10.70.00.1H2Okg/hr65.00.0160.0CO2kg/hr4066.50.04066.5COSkg/hr0.00.00.0H2Skg/hr0.10.00.0SO2kg/hr0.00.00.3MDEAkg/hr0.00.00.0MDEAH+kg/hr0.00.00.0HS-kg/hr0.00.00.0HCO3-kg/hr0.00.00.0CO3-2kg/hr0.00.00.0H3O+kg/hr0.00.00.0OH-kg/hr0.00.00.0S2-kg/hr0.00.00.0O2kg/hr0.0133.048.5N2kg/hr6093.2438.16531.3Volume Flowcum/hr1657.5490.511682.41.3.4 制冷工段图1-3 制冷工段工段工艺路线图表1-19 氨气压缩机（C0301）物料衡算INOUTUnitsS0302S0303PhaseVaporVaporTemperatureC51.2235.5Pressurebar2.010.0Molar Vapor Fraction1.01.0Enthalpy FlowGcal/hr-2.4-2.0Mass Flowskg/hr3797.83797.8NH3kg/hr3797.83797.8Volume Flowcum/hr2972.6928.5表1-20 氨气冷却器（E0301）物料衡算INOUTUnitsS0303S0304PhaseVaporLiquidTemperatureC235.525.2Pressurebar10.010.0Molar Vapor Fraction1.00.0Enthalpy FlowGcal/hr-2.0-3.5Mass Flowskg/hr3797.83797.8NH3kg/hr3797.83797.8Volume Flowcum/hr928.56.3表1-21 节流阀（V0301）物料衡算INOUTUnitsS0304S0301PhaseLiquidMixedTemperatureC25.2-18.9Pressurebar10.02.0Molar Vapor Fraction0.00.2Enthalpy FlowGcal/hr-3.5-3.5Mass Flowskg/hr3797.83797.8NH3kg/hr3797.83797.8Volume Flowcum/hr6.3404.91.3.5 碳捕集工段图1-4 碳捕集工段工艺路线图表1-22 二氧化碳压缩机（C0401）物料衡算INOUTUnitsS0401S0403PhaseVaporVaporTemperatureC35.2294.2Pressurebar4.950.0Molar Vapor Fraction1.01.0Enthalpy FlowGcal/hr-8.6-8.4Mass Flowskg/hr4049.44049.4H2kg/hr10.710.7H2Okg/hr6.66.6CO2kg/hr4025.94025.9COSkg/hr0.00.0H2Skg/hr0.20.2N2kg/hr6.16.1Volume Flowcum/hr499.589.8表1-23 氢气压缩机（C0402）物料衡算INOUTUnitsS0404S0405PhaseVaporVaporTemperatureC20.0144.7Pressurebar20.050.0Molar Vapor Fraction1.01.0Enthalpy FlowGcal/hr0.00.2Mass Flowskg/hr589.5589.5H2kg/hr589.5589.5Volume Flowcum/hr360.8208.0表1-24 一级预热器（E0401）物料衡算INOUTUnitsS0406S0407PhaseVaporVaporTemperatureC59.5220.0Pressurebar50.049.9Molar Vapor Fraction1.01.0Enthalpy FlowGcal/hr-10.6-6.6Mass Flowskg/hr13273.613273.6H2kg/hr6754.26754.2H2Okg/hr52.352.3CO2kg/hr4657.34657.3COSkg/hr0.00.0H2Skg/hr7.27.2N2kg/hr665.8665.8CH4Okg/hr411.8411.8COkg/hr725.1725.1Volume Flowcum/hr2000.42952.6表1-25 甲醇一级反应器（R0401）物料衡算INOUTUnitsS0407S0408PhaseVaporVaporTemperatureC220.0252.1Pressurebar49.949.9Molar Vapor Fraction1.01.0Enthalpy FlowGcal/hr-6.6-6.6Mass Flowskg/hr13273.613273.6H2kg/hr6754.26392.9H2Okg/hr52.31165.9CO2kg/hr4657.31936.7COSkg/hr0.00.0H2Skg/hr7.27.2N2kg/hr665.8665.8CH4Okg/hr411.82293.1COkg/hr725.1812.0Volume Flowcum/hr2952.63034.6表1-26 甲醇二级反应器（R0402）物料衡算INOUTUnitsS0411S0412PhaseVaporVaporTemperatureC220.0240.7Pressurebar49.749.7Molar Vapor Fraction1.01.0Enthalpy FlowGcal/hr-1.2-1.2Mass Flowskg/hr10264.110264.1H2kg/hr6392.36203.2H2Okg/hr51.0580.5CO2kg/hr1931.4638.0COSkg/hr0.00.0H2Skg/hr7.17.1N2kg/hr665.7665.7CH4Okg/hr406.31438.2COkg/hr810.3731.5Volume Flowcum/hr276