Separation of methylcyclopentane, cyclohexane and methylcyclohexane mixture by atmospheric distillation

Isobaric vapor-liquid equilibrium (VLE) data for the binary system of (methylcyclopentane + methylcyclo hexane) and the ternary system of (methylcyclopentane + cyclohexane + methylcyclohexane) were mea-sured at 101.3 kPa with a dynamic recirculating apparatue, and the temperature ranged from 344.79 to 373.85 K, and the thermodynamic consistency of the experimental date was checked by the Herington area method and Van Ness method. The experimental date was correlated with NRTL, Wilson and UNIQUAC activity coefficient models. The binary VLE date predicted by the binary interaction parameters agreed well with the experimental and literature data. Then, Aspen plus V11 software was used to estab-lish batch distillation model simulation calculation. The experimental results show that the products sep-arated by the batch distillation model meet the requirements. Finally, two sets of 1300 kg/hr separation process were designed and the process was optimized. The energy consumption of scheme I was slightly less than scheme II. (c) 2021 Elsevier Ltd.

Automated summary

Isobaric vapor-liquid equilibrium data for binary and ternary systems were measured and thermodynamic consistency was checked; Experimental results showed that products separated by batch distillation model met requirements and were simulated using software; Two sets of separation processes were designed and energy consumption was optimized.