因應溫室氣體排放減量與能源效率的提升，二氧化碳的回收與利用莫不受到工業國家的注意。因此，二氧化碳的利用已然成為現今一項重要的研究議題。 本論文將以程序設計與整合觀點完成四項案例的研究：「超臨界二氧化碳處理含甲基第三丁基醚之廢水」、「超臨界二氧化碳合成二甲基甲醯胺」、「熱碳酸鉀溶液吸收二氧化碳」與「超臨界二氧化碳萃取咖啡豆中之咖啡因」。論文中主要利用兩套軟體進行研究：「Aspen Plus」與「Super Target」。前者主要是用於程序合成、設計與模擬；後者則是進行狹點分析與換熱器網路合成。 To deal with the emission reduction of greenhouse gases and the improvement of energy efficiency, carbon dioxide recovery and utilization has been attracted by the industrialized countries. As a result, the use of carbon dioxide utilization in the design has become an important research issue today. In this thesis, we have successfully carried out four case studies from a viewpoint of process design and integration:“ MTBE wastewater treatment with supercritical CO2”, “DMF production using supercritical CO2”, “CO2 removal by hot potassium carbonate process”, and “Extraction of caffeine from raw green coffee beans.” Two software were utilized in the research – AspenPlus and SuperTarget. The former was used for the process synthesis, design, and simulation; the latter was used to carry out the pinch analysis and the synthesis of heat exchanger network.
