指導教授：陳誠亮臺灣大學：化學工程學研究所鍾耀賢Chung, Yao-HsienYao-HsienChung2014-11-252018-06-282014-11-252018-06-282014http://ntur.lib.ntu.edu.tw//handle/246246/261143戊酸甲酯是常見用在美容產品、香皂及洗衣精的香料，高純度的戊酸甲酯也可以當作塑化劑。本研究設計了兩種戊酸甲酯的製程及控制架構，包含了傳統反應蒸餾塔以及熱耦合反應蒸餾塔製程。反應蒸餾塔被用來打破酯化反應轉化率的限制。本研究也討論等量及過量進料兩種情況。產品戊酸甲酯和水能用一個分相槽及兩根氣提塔進行分離。熱耦合反應蒸餾塔製程能夠有效地減少30%的能耗，因為消除了再混合效應，但是在年總成本上只節省了17%，因為使用了壓縮機加壓以運送蒸餾塔塔頂汽體。過量進料設計的年總成本比等量進料設計還要高出許多，因為要使用額外的蒸餾塔來分離為反應完的反應物和產物。 最後，傳統反應蒸餾及熱耦合反應蒸餾製程的控制架構也在本研究中提出，模擬結果顯示此兩種結構能夠有效地排除產能擾動以及進料組成擾動。Methyl valerate (VAME), also known as methyl pentanoate, is a methyl ester of pentanoic acid (valeric acid). VAME is usually used as fragrance in the production of beauty care, soap and laundry detergents. High purity of VAME can also be used as a kind of plasticizer. This study presents design details of the process for the manufacture of VAME. A reactive distillation column (RDC) is used in the production process to overcome equilibrium limitation of the esterification reaction. Two different designs, neat reactant and excess reactant design, are investigated with two different configurations in each design, including conventional and thermally-coupled configurations. Products, VAME and water, can be separated by two strippers and a decanter. A thermally coupled design is then developed to reduce the remixing effect in the rectifying section of the RDC. The simulation results show that in the neat design, 30% energy saving can be achieved by using the proposed thermally coupled reactive distillation process but only 17% of total annual costs can be saved due to the use of compressor. Total annual costs of excess design are much higher than that of neat design due to an additional distillation column with high energy consumption required to recover unreacted reactants. Control strategies of both conventional and thermally-coupled configurations in neat design are investigated. The simulation results shows that thermally-coupled configuration can reject disturbances faster with smaller steady state value deviation from the setpoints.誌謝 I Abstract III 摘要 V Table of Contents VII Figure Index X Table Index XII 1 Introduction 1 1.1 Overview 1 1.1.1 Reactive Distillation 1 1.1.2 Thermally Coupled Distillation 2 1.2 Motivation 4 1.3 Literature Survey 5 1.3.1 Reactive Distillation 5 1.3.2 Thermally Coupled Distillation 6 1.3.3 Thermally Coupled Reactive Distillation 7 1.4 Thesis Organization 8 2 Reaction Kinetics 9 3 Thermodynamics 11 3.1 Estimation of Thermodynamic Parameters of VAME 11 3.2 Thermodynamic Model 11 3.3 Boiling Points Ranking and T-xy Diagram 13 3.4 Residual Curve Maps 18 4 Steady State Design of Neat RD Process 22 4.1 Process Design 22 4.1.1 Design of a RD column 22 4.1.2 Design of Separation Section 26 4.2 Base Case Design 28 4.3 Optimization of Design Flowsheet 32 4.3.1 Optimization of the RD column 32 4.3.2 Optimization of the Separation Section 33 4.3.3 The result of optimization 37 4.4 Thermally-coupled Reactive Distillation 40 4.5 An Alternative Design 43 5 Steady State Design of Excess RD Process 45 5.1 Process Design 45 5.1.1 Design of a RD column 45 5.1.2 Design of separation section 45 5.2 Process Flowsheet 48 5.3 Optimization of Flowsheet 50 5.4 Thermally Coupled Configuration 54 5.5 Comparison of Neat Design and Excess Design 57 6 Control Structures Design 58 6.1 Design of Control Loop 59 6.2 Disturbances Test 60 6.3 Control sStructure of Conventional Configuration 61 6.3.1 Open loop sensitivity test 61 6.3.2 Control structure 61 6.3.3 Dynamic response 67 6.4 Control Structure of Thermally-coupled Configuration 74 6.4.1 Open loop sensitivity test 74 6.4.2 Control Structure 76 6.4.3 Dynamic response 76 6.5 Comparison of Two Control Configurations 84 7 Conclusion 85 References 87 Appendixes 901727868 bytesapplication/pdf論文公開時間：2015/08/12論文使用權限：同意有償授權(權利金給回饋學校)戊酸甲酯酯化反應反應蒸餾熱耦合反應蒸餾程序設計程序控制[SDGs]SDG7thesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/261143/1/ntu-103-R01524012-1.pdf