進料不純物作為系統內自體共沸劑模擬回收醋酸之醋酸脫水程序及其效益分析

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姓名

林靜慧(Ching-Hui Lin) 查詢紙本館藏

畢業系所

化學工程與材料工程學系

論文名稱

進料不純物作為系統內自體共沸劑模擬回收醋酸之醋酸脫水程序及其效益分析
(Take the impurity of feed as an entrainer of Acetic acid Dehydration system and make its economic analysis.)

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摘要(中)

本研究係以異相共沸蒸餾的方式穩態模擬純化回收醋酸。此系統進料由醋酸(HAc)、水(H2O)、乙酸甲酯(MA)、及對位二甲苯(PX)組成，存在三種共沸物，分別為均相HAc-PX共沸物，其共沸溫度115.2℃、均相H2O-MA共沸物，其共沸溫度56.66℃、及非均相H2O-PX共沸物，其共沸溫度92.29℃。因水與對位二甲苯約在92.29℃存在非均相共沸，在熱力學性質上選用了NRTL活性係數模式，並套用 Hayden和O’Connell所提的理論，進行模擬。

摘要(英)

This work is done by simulator to purify acetic acid by heterogeneous distillation at steady state.The feed compositions are Acetic acid, H2O, Methyl Acetate, and P-xylene. This work has the result of three azeotropies. One is the homogeneous azeotrope of HAc-PX, its azeotropic temperature is 92.2℃, another is the homogeneous azeotrope of H2O-MA, its azeotropic temperature is 56.66℃, and the other is heterogeneous azeotrope of PX-H2O, its azeotropic temperature is 92.29℃. Because of H2O-PX has heterogeneous azeotropic point at 92.29℃, this work were conducted with a modified NRTL model. The VLE and VLLE data were correlated by the activity coefficient models of NRTL with the consideration of the association by Hayden and O’Connell in the vapor phase.

關鍵字(中)

★ 不純物
★ 脫水程序

關鍵字(英)

★ Impurity
★ Dehydration process

論文目次

中文摘要 ................................................... I
Abstract .................................................. II
誌謝 ...................................................... IV
目錄 ...................................................... V
表目錄 ................................................. VII
圖目錄 .................................................. IX
符號說明 ................................................. X
第一章緒論 ............................................. 1
1 . 1 前言 ............................................... 2
1 . 2 化工分離程序 ..................................... 2
1 . 3 文獻回顧 .......................................... 4
第二章熱力學分析 ...................................... 8
2 . 1 活性係數模式 ..................................... 8
2 . 2 蒸餘曲線( R C M ) .................................... 9
第三章穩態設計 ....................................... 20
3 . 1 製程說明 ......................................... 20
3 . 2 醋酸脫水 ......................................... 21
3 . 3 醋酸脫水程序之模擬結果 ........................ 23
第四章成本分析 ....................................... 28
4 . 1 設備成本 ......................................... 29
4 . 1 . 2 冷凝器(E1)成本計算 ............................. 31
4 . 1 . 3 分相器( D 1 ) 成本計算 ......................... 32
4 . 2 操作成本 ......................................... 32
4 . 2 . 1 蒸汽成本 ..................................... 32
4 . 2 . 2 冷凝水成本 .................................. 32
4 . 3 其他成本 ......................................... 32
4 . 4 收入 .............................................. 33
4 . 5 經濟分析綜合整理 ............................... 33
第五章結論 .............................................. 37
參考文獻 .................................................. 38
附錄I ................................................... 42

參考文獻

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指導教授

李亮三(Liang-sun Lee)

審核日期

2011-7-8

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