本研究目的係探討碳酸二甲酯製程之設計與控制。首先選擇合適的熱力學與動力學模式來描述程序，並使用Aspen Plus進行穩態模擬。本研究提出系統最適化流程，以最小總年度成本(TAC)為目標，先得到反應蒸餾塔最適化之穩態設計及操作條件；再接著得到操作在不同壓力下共沸蒸餾塔系統穩態設計及操作條件，進而將其整合為整廠最適化之穩態設計。接著用Aspen DynamicsTM進行動態模擬。在反應蒸餾塔控制策略上，以第五板溫度作動碳酸乙烯酯進料流率，第十四板溫度作動回流比，從干擾排除來看，控制效果不錯。在整廠設計上，提出兩個控制策略，從干擾排除測試來看，低壓塔的塔底液位作動甲醇的新鮮進料比作動低壓塔塔底出料來得好。

In this research, design and control of a reactive distillation column to produce dimethyl carbonate is studied. Suitable thermodynamic and kinetic model parameters are used to describe this process. A search procedure is proposed to obtain the optimum process design and operating condition of this process. The optimum process design and flowsheet is obtained by minimizing the Total Annual Cost (TAC) of this process. The optimum process design and flowsheet about reactive distillation is obtained, first then the optimum process design and flowsheet about Pressure-Swing azeotropic distillation column system is obtained. After that, we use Aspen DynamicTM to do dynamic simulation. In the reactive distillation study, the proposed temperature control strategy is use ethylene carbonate feed rate to control 5th tray temperature and to use reflux ratio to control 14th tray temperature. In the overall process study, two control strategies are suggested. Simulation results demonstrate that the bottom level of the 2nd column uses fresh methanol feed rate as the manipulated variable is better than the one uses bottom flow rate of the 2nd column to control the bottom level in the face of various feed disturbances.

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