本研究目的係探討乳酸提濃之設計與控制。首先選擇合適的熱力學與動力學模式來描述程序，使用Aspen Plus○R進行穩態模擬。本研究提出使用反應蒸餾塔程序來進行酯化反應，並以年度總成本(TAC)為最適化目標，得到其設計流程下最適化之穩態設計操作條件。接著用Aspen Dynamics TM進行動態模擬，執行各種干擾測試來檢驗反應蒸餾塔的控制架構。

The objective of this research is to study the design and control of the purification and recovery process which recovers lactic acid from its aqueous solution. First, we select the most suitable thermodynamic and kinetic models to describle the process characteristics, and then use the Aspen Plus○R to perform steady state plant design and simulation. The plant design procedure is proposed to obtain one flowsheet, namely using a reactive distillation column to carry out the esterification of lactic acid. The total annual cost(TAC) is used as the design criterion to obtain the optimal process and the operating condition, Then Aspen Dynamics TM is employed to execute dynamic simulation. Finally, a variety of disturbances are used to verify the versality of the proposed control configuration.

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