臺灣博碩士論文加值系統

醋酸乙酯(EtOAc)，為工業界重要的有機溶劑之一，本研究針對生產醋酸乙酯之反應蒸餾製程做深入探討。藉由化工模擬軟體Aspen plus，搭配其熱力學與動力學之物理性質，提出了六種穩態設計方案，並選定了二種酸醇進料比，再分別比較其轉化率效益與能源耗費量。由研究結果顯示，擁有預先反應器確實能降低反應蒸餾塔之負荷量，並且因驟沸槽的加入，省掉了額外醋酸加入與能源之花費。另一方面，本研究增設了純化部份，除了將多餘的水排掉外，亦將產品醋酸乙酯加以純化，以符合工業規格。同時，針對未反應完全之乙醇回收，亦設計將其迴流導入反應蒸餾塔之反應段。如此一來，構成一個完整的醋酸乙酯反應蒸餾製程。並由電腦模擬結果顯示，此完整製程可得高濃度之醋酸乙酯，並且幾乎沒有原物料浪費，其轉化率可達99.8%以上。

Ethyl acetate is one of the most important organic solvents in the industry. The main purpose of this study is using reactive distillation technique on the production of ethyl acetate. The industrial grade raw materials, i.e. 88 mole% of ethanol and 99.5 mole% of acetate acid, are used. A commercial simulation software package Aspen Plus has been employed. First, six heuristic-design strategies on the reactive section are proposed. Based on the maximum conversion, the minimization of energy consumption, and the smaller equipment sizing, the ‘best’ design is chosen by the Aspen Plus simulator. On the other hand, the purification section for draining the wasted water (99.9 mole%) and producing the high purity ethyl acetate (99.9 mole%) is designed. Several alternative design strategies for the purification section are considered. Similarly, using the Aspen Plus simulator and the residue curve map, the ‘best’ design is chosen. Finally, a complete process including reactive distillation with purification system of the ethyl acetate production is designed. In addition, the total conversion of the ethyl acetate is found to be more than 99.8%.

中文摘要--------------------------------------------------------------------------Ⅰ
英文摘要-------------------------------------------------------------------------- II
誌謝--------------------------------------------------------------------------------III
目錄-------------------------------------------------------------------------------IV
表目錄----------------------------------------------------------------------------VI
圖目錄---------------------------------------------------------------------------VII
第一章 緒論-------------------------------------------------------------------1
第二章 文獻回顧-----------------------------------------3
第三章 熱力學與動力學模------------------------------------------------11
熱力學模式-------------------------------------11
反應動力學模式--------------------------------------------------13
第四章 基本設計之原理---------------------------------------------------17
模式之建立--------------------------------------------------------19
設計考量-----------------------------------------------------------22
酸醇進料量比之探討--------------------------------------------28
反應蒸餾塔設計--------------------------------------------------30
分相行為探討-----------------------------------------------------34
第五章 製程設計之概念---------------------------------------------------37
方案之探討與比較-----------------------------------------------37
穩態模擬之結果--------------------------------------------------40
提高酸醇比之探討-----------------------------------------------49
後續純化設計-----------------------------------------------------50
不同迴流位置之探討--------------------------------------------54
整廠之設計--------------------------------------------------------58
第六章 結論--------------------------------------------------------------------67
參考文獻--------------------------------------------------------------------------69
簡歷--------------------------------------------------------------------------------73

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