Abstract: A process intensification principle for reactive distillation is proposed.On the basis of sufficient coupling between reaction and separation operations,an effective double dividing-wall reactive distillation column (R-DDWDC) is obtained through further enhancing the coupling between separation operations.The double dividing-wall structure can improve the energy efficiency in reactive distillation process significantly.Both the ideal quaternary reaction system and the transesterification between dimethyl carbonate and ethanol are used to evaluate the R-DDWDC proposed.The obtained results show that the proposed R-DDWDC can reduce energy consumption effectively.In addition,the parameters analysis is further carried out with reference to the reactive system properties,and the results show that this R-DDWDC is suitable for systems with difficulty in reaction and separation,and also has superior steady-state performance.
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