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Low pressure design for reducing energy cost of extractive distillation for separating Diisopropyl ether and Isopropyl alcohol

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Academic year: 2021

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Fig. 1 – Flowsheet of typical extractive distillation with (a) heavy entrainer and (b) light entrainer.
Fig. 2 – Block flow diagram of the proposed methodology for 1.0-1a-m1 extractive separation class.
Fig. 3 – Extractive distillation column configuration and DIPE–IPA–2-methoxyethanol. Class 1.0-1a residue curve map at 1atm with isovolatility curves at 0.4 and 1 atm.
Table 3 – Relationship between distillates, purity and recovery for DIPE–IPA.
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