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Table 3 Operating conditions of equipment

From: Systematic design of separation process for bioethanol production from corn stover

Equipment Parameters Operating conditions
Distillation (case 1) Reflux ratio 2.5
Distillate rate 530 kmol/hr
Number of stage 15
Feed stage 7
Flash (case 2,3) Temperature 32 °C
Pressure 1 bar
Extractive distillation (case 2) Reflux ratio 1
Distillate rate 445 kmol/hr
Number of stage 12
Feed stage of crude ethanol 8
Feed stage of solvent 4
Solvent Ethylene glycol
Ratio of solvent to feed 2
Recovery column (case 2) Reflux ratio 1
Distillate rate 82 kmol/hr
Number of stage 9
Feed stage 4
Pervaporation (case 3) Temperature 129 °C
Area of membrane 1950 m2