Title: Separation of cyclohexane-1-propanol by batch extractive distillation
Abstract: The separation of cyclohexane-1-propanol azeotrope by batch extractive distillation is investigated in this study.DMF is chosen as solvent for separating cyclohexane-1-propanol azeotrope by extractive distillation according to the basic selection rules.The simulation of vapor-liquid equilibrium for cyclohexane-1-propanol with and without DMF under atmospheric pressure is performed using UNIFAC model.The vapor-liquid equilibrium experiment is also studied as well.The simulation results agree well with the experimental data.Then the batch extractive distillation experiment is done to investigate the effectiveness of the selected solvent.The results show that DMF can eliminate the azeotropic point of cyclohexane-1-propanol azeotrope.The batch distillation is carried out in a packed column of 30 theoretical plates and extractive solvent flowing inside on the fourth plate.The reflux ratio is 3 and the solvent ratio 1∶ 1.The concentration of cyclohexane obtained at the top of the column is 96.2wt%,and the recovery ratio is 72.2%.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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