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时间:2021-03-31
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1、__________________________________________________第三章物料与热量衡算3.1变换炉工艺条件的计算已知条件:组分CO2COH2N2O2CH4合计含量,%7.0032.0042.0018.000.501.20100计算基准:1吨氨计算生产1吨氨需要的变换气量:(1000/17)×22.4/(2×0.18)=3653.68M3(标)因为在生产过程中物料可能会有损失,因此变换气量取3700M3(标)年产8万吨合成氨生产能力(一年连续生产330天):则每小时生产量:10.1t/h要求出低变炉的变换气干组分中CO%小于1%。
2、表1半水煤气干组分组分CO2COH2N2O2CH4合计含量,%7.0032.0042.0018.000.501.20100M3(标)259.001184.001554.00666.0018.5044.403700.00kmol11.5652.8669.3829.730.831.98166.343.1.1变换炉的物料与热量衡算表2进低变炉一段半水煤气干组分组分CO2COH2N2CH4合计含量,%7.1132.4940.9118.271.22100M3(标)259.001184.001491.10666.0044.403644.50kmol11.5652.8666.
3、5729.731.98162.70____________________________________________________________________________________________________3.1.2低变炉一段催化剂层的物料与热量衡算(1)物料衡算表3出低变炉一段变换气干组分组分CO2COH2N2CH4合计含量,%22.2610.8750.5515.291.03100M3(标)969.46473.542201.56666.0044.404354.96kmol43.2821.1498.2829.731.98194.41表
4、4进低变炉一段半水煤气湿组分组分CO2COH2N2CH4HO合计含量,%5.5825.5332.1514.360.9621.42100M3(标)259.001184.001491.10666.0044.40993.494637.99kmol11.5652.8666.5729.731.9844.35207.05表5出低变炉一段变换气湿组分组分CO2COH2N2CH4HO合计含量,%20.9010.2147.4714.360.966.10100M3(标)969.46473.542201.56666.0044.40283.034637.99kmol43.2821.14
5、98.2829.731.9812.64207.05__________________________________________________
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