隔壁塔设计与控制的研究进展

Progress in design method and controllability of dividing wall column

隔壁塔作为一种利用完全热耦合技术的精馏塔,其在一个塔壳内实现多组分的清晰分离,避免了在常规精馏塔序列中出现的返混现象,具有热力学效率高、能耗低、投资费用低等优点.着重阐述了隔壁塔在设计与控制方面的研究进展,包括初值估算设计、严格模拟设计、优化设计、控制方案、参数控制操作性等,指出在模拟和应用中隔壁塔的设计与控制存在的问题及后续研究的方向.

Dividing wall column is one kind of distillation column applying fully thermally coupled technology. It can sepa-rate multi-components sharply in one shell and avoid the remixing phenomenon appeared in the conventional distillation sequences. It has the advantage of high thermodynamic efficiency, low energy consumption and low equipment investment. In this paper, the progress in design method and controllability of dividing wall column is reviewed, including the initial estimate design, rigorous simulation design, optimal design, control schemes, operability of controlled parameters. The problems of design method and controllability in simulation and practice are pointed out, which provides the reference for further researches.