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研究生:林欣玫
研究生(外文):Hsin-Mei Lin
論文名稱:固體觸媒進行酯化/轉酯化反應生產生質柴油
論文名稱(外文):Biodiesel Synthesis by Esterification/ Transesterification Using Solid Catalysts
指導教授:吳紀聖
口試委員:吳乃立李明哲
口試日期:2011-07-25
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:化學工程學研究所
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:95
中文關鍵詞:生質柴油固體觸媒酯化反應轉酯化反應
外文關鍵詞:BiodieselSolid CatalystEsterificationTransesterification
相關次數:
  • 被引用被引用:3
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生質柴油為一種替代石油之能源,其合成方法主要為轉酯化反應。本研究使用固體觸媒催化酯化/轉酯化反應解決進料油中自由脂肪酸之問題。
第一種方式:利用固體酸觸媒,同時催化酯化/轉酯化反應。使用市售豬油作為反應物,以SZA (Sulfated Zirconia Alumina)固體酸觸媒進行催化,針對觸媒含量、醇油比以及反應溫度等反應參數進行探討,並實際選用含自由脂肪酸之廢食用油進行反應。實驗結果顯示,在反應條件:醇油比為12比1,觸媒含量為1.0wt%,反應溫度為150oC,反應時間2hr下,反應產率約可達到80%;另外,由廢食用油之反應產率可看出,此觸媒催化效率不受原料油影響,故可選用品質較差之廢食用油作為原料油,以達到降低成本目的。
第二種方式:第二種方式為兩步驟反應。在較溫和的反應溫度60oC下,先利用SZA (Sulfated Zirconia Alumina)固體酸觸媒催化酯化反應,轉化油品中自由脂肪酸成為酯類,再以二甘油化鈣Ca(C3H7O3)2固體鹼觸媒催化轉酯化反應,分別以添加5wt%、20wt%棕櫚酸之大豆油(模擬含自由脂肪酸的油脂)為進料油。實驗結果顯示,第一步驟酯化反應確實有其必要性,且經過兩步驟反應後,整體產率約為80%。


Biodiesel is an alternative fuel for traditional fossil fuel. It can be produced by transesterification from triglyceride. In this study, we use solid catalysts to catalyze esterification and transesterification in order to solve the problems of free fatty acid (FFA) in the feedstock oil.
The first method:Both esterification and transesterification were catalyzed simultaneously by solid acid catalyst. In experiment, we used commercial lard as feedstock oil, and SZA (Sulfated Zirconia Alumina) solid acid catalyst to catalyze both reactions. We studied different reaction parameters, the catalyst amount, the methanol/oil molar ratio, and reaction temperature. We also chose waste cooking oils (WCO) which contained FFA as feedstock oil. Under methanol/oil molar ratio 12/1, catalyst amount 1wt%, reaction temperature 150oC, and reaction time 2hr, the biodiesel yield reached 80%. Moreover, the biodiesel yield of WCO showed that different feedstock oils did not influence the efficiency of catalyst. So we could use the low quality WCO as the feedstock oil to decrease cost of oil.
The second method:The second method was two sequence reactions. Under mild reaction temperature 60oC, use SZA solid acid catalyst to catalyze esterification first. The objective was to convert FFA into ester. Then used calcium diglyceroxide Ca(C3H7O3)2 solid base catalyst to catalyze transesterification. We added 5wt% and 20wt% palmitic acid into soybean oil to simulate the feedstock oil which contained FFA. The research result showed that it was necessary to esterify FFA in oil in the first step, and the overall yield was 80% after this two sequence reactions.


摘要 I
Abstract II
目錄 III
圖目錄 VI
表目錄 IX
第一章 緒論 1
第二章 文獻回顧 4
2.1 生質柴油簡介 4
2.1.1 生質柴油來源 4
2.1.2 生質柴油的性質 7
2.1.3 合成方法-轉酯化反應 11
2.2 固體觸媒 18
2.2.1 固體鹼觸媒 18
2.2.2 固體酸觸媒 20
2.3 其他影響轉酯化反應因素 22
2.4 反應設計 26
2.4.1 一步驟反應 26
2.4.2 兩步驟反應 26
第三章 實驗方法 28
3.1 實驗藥品與儀器設備 28
3.1.1 實驗藥品 28
3.1.2 儀器設備 30
3.2 觸媒製備 31
3.2.1 固體酸觸媒Sulfated Zirconia Alumina(SZA) 31
3.2.2 固體鹼觸媒Ca(C3H7O3)2 32
3.3 觸媒分析原理 33
3.3.1 X光繞射儀(X-Ray Diffractometer,XRD)[36] 33
3.3.2 傅立葉轉換紅外線光譜儀(Fourier-Transform Infrared Spectrometer)[37] 35
3.3.3比表面積分析儀(Specific Surface Area Analyzer)[39] 37
3.3.4 固體酸性質[40] 39
3.3.5 固體鹼性質[40] 42
3.4 一步驟固體酸觸媒反應實驗流程 44
3.4.1 豬油/廢食用油預處理 44
3.4.2反應實驗流程 45
3.4.3 觸媒重複使用實驗流程 47
3.5 兩步驟固體酸觸媒酯化/固體鹼觸媒轉酯化反應實驗流程 48
3.5.1 固體鹼觸媒催化含自由脂肪酸之大豆油轉酯化反應實驗流程 48
3.5.2固體酸觸媒酯化/固體鹼觸媒轉酯化反應實驗流程 48
3.6 產物分析方法 51
3.6.1 氣相層析儀(Gas Chromatograph)[42-43] 51
3.6.2甲基酯檢量線製作 54
3.6.3 甲基酯產率計算 58
第四章 觸媒分析結果與討論 59
4.1固體酸觸媒Sulfated Zirconia Alumina(SZA) 59
4.1.1 X光繞射分析 59
4.1.2傅立葉轉換紅外線光譜分析 60
4.1.3 固體酸性質分析 61
4.1.4 比表面積分析 64
4.2固體鹼觸媒Ca(C3H7O3)2 65
4.2.1 X光繞射分析 65
4.2.2 比表面積分析 65
4.2.3 鹼性質分析 66
第五章 一步驟固體酸觸媒實驗結果與討論 67
5.1 空白實驗 67
5.2觸媒鍛燒溫度之影響 67
5.3 觸媒含量之影響 68
5.4 不同醇油比之影響 69
5.5 不同反應溫度之影響 70
5.6 不同油品之影響 71
5.7 觸媒重複使用性 73
第六章 兩步驟固體酸觸媒酯化/固體鹼觸媒轉酯化實驗結果與討論 76
6.1固體鹼觸媒催化含5wt%棕櫚酸之大豆油進行轉酯化反應 76
6.2 兩步驟固體酸觸媒酯化/固體鹼觸媒轉酯化反應-5wt%FFA 77
6.2.1 兩步驟反應-經除水步驟(A) 77
6.2.2 兩步驟反應-無除水步驟(B) 79
6.3 兩步驟固體酸觸媒酯化/固體鹼觸媒轉酯化反應-20wt%FFA 83
6.3.1 兩步驟反應-經除水步驟(A) 83
6.3.2 兩步驟反應-無除水步驟(B) 86
第七章 結論與未來展望 91
Reference 92
個人小傳 95



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