4-heptanone and 2-Pentanone are promising organic solvents due to their high thermal stability. Due to the lack of binary interaction parameters between 4-heptanone and 2-Pentanone, the vapor-liquid equilibrium experiment is measured for 4-heptanone and 2-Pentanone in this work. The binary interaction parameters are obtained by UNIQUAC model, Wilson model and NRTL model regression. Based on the heterogeneous characteristics of the system, two kinds of steady-state processes are designed. Based on the minimum annual cost, TAC, carbon emissions and thermodynamic efficiency of the corresponding steady-state process were calculated, and for different feeding ways were compared. In addition, the internal cycle dynamic control (basic control structure and dual temperature control structure) are explored. The anti-disturbance performance of the system is detected by introducing 5% the feed disturbance. The result shows that the dual temperature control structure has a good anti-disturbance ability in the face of feed and composition disturbance. The interaction parameters obtained by experimental regression provide a theoretical basis for the design of steady-state process. Flash / distillation technology provides guidance for industrial purification of 2-pentanone/4-heptanone.

4-庚酮和2-戊酮由于其高的热稳定性而成为有前途的有机溶剂。由于4-庚酮和2-戊酮之间缺乏二元相互作用参数，因此在这项工作中对4-庚酮和2-戊酮进行了气液平衡实验。通过UNIQUAC模型，Wilson模型和NRTL模型回归获得二元相互作用参数。根据系统的异构特性，设计了两种稳态过程。基于最低年成本，计算了相应稳态过程的TAC，碳排放量和热力学效率，并比较了不同的进料方式。此外，还研究了内部循环动态控制（基本控制结构和双重温度控制结构）。通过引入5％的进料干扰来检测系统的抗干扰性能。结果表明，双重温度控制结构在面对饲料和成分干扰时具有良好的抗干扰能力。通过实验回归得到的相互作用参数为稳态过程的设计提供了理论依据。闪蒸/蒸馏技术为2-戊酮/ 4-庚酮的工业纯化提供了指导。