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研究生:郭懿憶
研究生(外文):Yi-Yi Kuo
論文名稱:利用鈣矽氧化物觸媒進行大豆油/甲醇轉酯化生成生質柴油
論文名稱(外文):Transesterification of Soybean Oil and Methanol using Ca-Si Oxides as Solid Catalysts for Biodiesel Production
指導教授:鄭紀民
指導教授(外文):Jih-Mirn Jehng
口試委員:楊宏達陳炎輝
口試委員(外文):Hongta YangIen-Whei Chen
口試日期:2017-01-19
學位類別:碩士
校院名稱:國立中興大學
系所名稱:化學工程學系所
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:2018
畢業學年度:106
語文別:中文
論文頁數:88
中文關鍵詞:生質柴油大豆油轉酯化反應磁性固態觸媒
外文關鍵詞:BiodieselTransesterification
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本研究探討二氧化矽與鈣合成催化劑進行大豆油及甲醇生產生質柴油之反應條件研究的可行性。利用SiO2與CaCO3結合形成CaSiO3,將此種鹼性固體觸媒應用在大豆油轉酯化反應上,除了製備出碳中性之生質柴油外,更結合了磁性固態觸媒的應用,增加觸媒的回收率並能重複使用,達到降低成本以利未來工業上廣泛使用。鹼性固體觸媒催化劑特性利用 X 射線繞射(XRD)、場發射式掃描式電子顯微鏡(FE-SEM-EDS)、傅立葉轉換光譜儀(FT-IR)、比表面積及孔隙分析儀(BET)和 Hammet指示劑法分析其物理和化學性質。在大豆油轉酯化反應測試中,分別討論了觸媒的煅燒溫度、煅燒時間、SiO2與CaCO3之莫耳比、油醇莫耳比、觸媒用量和反應時間。在最佳反應條件下,SiO2與CaCO3莫耳比為 1:1 在 600oC 煅燒所合成之CaSiO3,具有最佳脂肪酸甲酯轉化率達 91.2%。
The use of solid basic catalysts in esterification reaction allows the development of environmental friendly processes to produce biodiesel. In this work, Ca-Si oxides as catalysts were prepared by co-precipitation method, and then applied to biodiesel production by transesterification reactionbetween methanol and soybean oil. The prepared Ca-Si oxides catalysts are characterized by XRD, FT-IR, SEM-EDS, BET and the Hammett indicator in order to obtain their physical and chemical properties. Effects of calcination temperatures, calcination time, methanol /oil ratio (mol/mol), and catalyst amount (wt %) on the catalytic properties of Ca-Si oxides catalysts are also investigated. Under the optimal reaction conditions of Ca-Si oxides catalysts, the conversion of soybean oil approaches 91.2%. In addition, the relationship between the surface basicity and activity has indicated that stronger basicity is responsible for the higher catalytic activity. The Ca-Si oxide catalysts are insoluble in methyl esters and can be easily separated for further reaction, turning it into a potential catalysts for biodiesel synthesis.
摘要 i
Abstract ii
目錄 iii
表目錄 v
圖目錄 vi
第一章緒論 1
前言 1
1.1 研究動機 10
1.2 研究目的 11
第二章 文獻回顧 12
2.1 生質柴油 12
2.2 生質柴油的合成方法 13
2.2.1 混合稀釋法 13
2.2.2 熱裂解法(Pyrolysis) 13
2.2.3 稀釋法(Dilution) 14
2.2.4 轉酯化反應(Transesterification) 14
2.2.5 超臨界法(Supercritical Method) 15
2.3 轉酯化反應之觸媒 17
2.3.1 均相鹼性觸媒 17
2.3.2 非均相鹼觸媒 20
2.4 轉酯化反應後產物分離 20
2.5 生質柴油的純化 20
2.6 生質柴油之檢測 21
第三章實驗材料與方法 24
3.1 研究流程圖 24
3.2.3 實驗藥品 25
3.2.4 實驗器材 25
3.2.5 分析儀器 26
3.2 實驗步驟 27
4.1.3 合成催化劑 27
4.1.4 催化劑性質分析 27
4.1.5 轉酯化反應實驗 35
4.1.6 轉酯率的測定 36
第四章 結果與討論 40
4.1 改變合成CaCO3之啓始物添加莫耳數 40
4.2.3 XRD 41
4.2.4 FE-SEM 42
4.2.5 FT-IR 43
4.2.6 BET 44
4.2.7 鹼度的測定 47
4.2.8 轉酯率的測定 49
4.2 改變煅燒合成CaSiO3時的溫度 49
4.2.1 XRD 50
4.3.3 FE-SEM 51
4.3.4 FT-IR 52
4.3.5 BET 53
4.3.6 鹼度的測定 57
4.3.7 轉酯率的測定 58
4.3 改變合成CaSiO3之煅燒時間 59
4.4.3 XRD 59
4.4.4 FE-SEM 60
4.4.5 FT-IR 61
4.4.6 BET 62
4.4.7 轉酯率的測定 66
4.4 改變轉酯化反應條件 68
4.5.3 探討油醇莫耳比對轉酯化反應之影響 68
4.5.4 探討催化劑用量對轉酯化反應之影響 70
4.5.5 探討反應時間對轉酯化反應之影響 72
4.5 探討添加Fe離子之轉酯化效果 73
4.5.1 FE-SEM 73
4.5.2 XRD 78
4.5.3 BET 79
4.5.4 轉酯率的測定 82
第五章結論 83
參考文獻 84
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