刘总,以下是 Aspen 在不同状态方程下设计的甲醇乙醇分离塔参数: 给定参数 数值 进料量 14kg/h(10t/month) 甲醇百分数 0.7 乙醇百分数 0.3 塔顶甲醇浓度 0.995 塔顶冷凝器压力 105Kpa 塔釜压力 110Kpa 进料温度 67C 本-罗宾逊状态方程下计算结果: 参数 单位 Minimu m reflu x ratio: (最小回流比) 2.05103502 Actu al reflu x ratio:(实际回流比) 4.10207004 Minimu m nu mber of stages:(最小塔板数) 22.4154172 Nu mber of actu al stages:(实际塔板数) 30.6956764 Feed stage:(进料板数) 17.3535025 Nu mber of actu al stages abov e feed:(实际进料板数) 16.3535025 Reboiler heating requ ired:(再沸器热量) 13939.6694 kcal/hr Condenser cooling requ ired:(冷凝器冷凝量) 13918.4179 kcal/hr Distillate temperatu re:(馏出物温度) 64.9441012 C Bottom temperatu re:(塔釜温度) 78.7822818 C Distillate to feed fraction:(这个参数不懂,可能是顶出料占进料百分数) 0.76766365 回流比一定时,塔顶甲醇浓度和塔板数关联图(X 轴表示甲醇浓度,Y 轴表示塔板数): Sensitivity REC-N SummaryVARY 1 B1 PARAM RECOVL 0.9450.94750.950.95250.9550.95750.960.96250.9650.96750.970.97250.9750.97750.980.98250.9850.98750.990.99250.9950.9975124.52525.52626.52727.52828.52929.53030.53131.53232.53333.53434.535N 塔顶甲醇浓度一定时,塔板数和回流比的关联图(X 轴表示回流比,Y 轴表示塔板数): Sensitivity N-R Results SummaryVARY 1 B1 PARAM RR -2-1.5-1-0.500.511.522.533.544.555.566.577.588.599.5103035404550556065707580859095100105110115120125130135140145N 理想状态方程下塔各参数计算结果: 参数 单位 Minimum reflux ratio: 1.80086733 Actual reflux ratio: 3.60173466 Minimum number of stages: 19.5093594 Number of actual stages: 27.0712084 Feed stage: 14.0684564 Number of actual stages above feed: 13.0684564 Reboiler heating required: 11792.7233 kcal/hr Condenser cooling required: 11765.5301 kcal/hr Distillate temperature: 65.4594945 C Bottom temperature: 80.1283075 C Distillate to...