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研究生:蔡欣穎
研究生(外文):Hsin-yin Tsai
論文名稱:交聯幾丁聚醣/分子篩複合膜應用於乙醇脫水之探討
論文名稱(外文):Study on Crosslinked Chitosan/Zeolite Hybrid Membranes for the Dehydration of Ethanol-Water Solutions
指導教授:凌漢辰
指導教授(外文):Han-chen Ling
學位類別:碩士
校院名稱:國立成功大學
系所名稱:化學工程學系碩博士班
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:2008
畢業學年度:96
語文別:中文
論文頁數:77
中文關鍵詞:分子篩有機-無機混合膜硫酸交聯幾丁聚醣
外文關鍵詞:organic-inorganic hybrid membranezeolitechitosancrosslinking by sulfuric acid
相關次數:
  • 被引用被引用:4
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  • 下載下載:74
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本研究主要利用滲透蒸發處理技術,使用製備幾丁聚醣薄膜且摻混不同規格的分子篩(3A、4A、5A、NaX和NaY),並使用硫酸交聯,來進行酒精除水純化實驗,並改變交聯時間,分子篩的含量及進料溫度觀其對滲透量及分離係數的影響。
接著,所製備的薄膜藉由傅立葉紅外線光譜儀、X光繞射儀及掃描式電子顯微鏡鑑定其性質。其熱穩定性及熱裂解溫度則以熱重分析儀分析紀錄。並進行膨潤實驗,比較不同的交聯時間、分子篩含量和規格之間的影響。
經過交聯後的幾丁聚醣薄膜對水膨潤性質,略微上升,但是對乙醇膨潤性質則是大幅下降,這是因為交聯後的幾丁聚醣極性增加的關係。在摻混了分子篩的交聯薄膜,則會呈現對水膨潤性質上升,對酒精則為下降的現象,且下降幅度較摻混前的明顯。滲透量也是隨著摻混量的增加而增加,但分離係數則是要在摻混量達20 wt.%之後,才會有明顯的上升。
The aim of this study is to investigate the dehydration of aqueous ethanol solutions by pervaporation using chitosan membranes which were crosslinked in sulfuric acid and embedded with various types of zeolites(3A, 4A, 5A, NaX and NaY). Effects of crosslinking time, zeolite contents and operation temperature on pervaporation performances were studied.
The membranes were characterized by Fourier transform-infrared spectrometry(FT-IR), X-ray diffractometer(XRD), scanning electronic micro- scopy(SEM). In addition, thermal properties of the membranes embedded with different amout of silica were investigated by thermal gravimetric ananlysis(TGA). Furthermore, effects of crosslinking time, contents and types of zeolite on swelling behaviors in ethanol and in water of chitosan membranes were also investigated.
Compared to the uncrosslinked chitosan membranes, the swelling ratio of the crosslinked chitosan membranes in water increased slight, whereas it declined quite obviously in ethanol. This can be attributed to the enhancement in polarity of the membranes by crosslinking. With addition of zeolites, the swelling ratio in water increased with increasing zeolite contents while it decreases more significantly in ethanol compared to the data of membranes without zeolite embedded. It is found that the total permeability increased with increasing zeolite contents in the EtOH/water pervaporation experiments. On the other hand, the increase in separation factor was observed only when the contents of zeolite were above 20wt.%.
中文摘要 Ⅰ
Abstract Ⅱ
致謝 Ⅲ
目錄 Ⅳ
表目錄 Ⅷ
圖目錄 Ⅸ

第一章 緒論 1
1-1 研究動機 1
1-2 研究內容與目的 2
第二章 文獻回顧 4
2-1 滲透蒸發技術之發展歷史 4
2-1-1簡介 4
2-1-2發展歷史 5
2-1-3原理 5
2-2 膜分離技術及應用 6
2-3 合成膜的構造和特性 7
2-4 沸石的發展歷史與應用 9
2-4-1 發展歷史 9
2-4-2 應用範圍 10
2-5幾丁聚醣及其他薄膜應用於乙醇除水 12
2-5-1幾丁聚醣薄膜及使用不同交聯劑的文獻結果 12
2-5-1-1 戊二醛(glutaraldehyde,GA) 15
2-5-1-2 磺酸化丁二酸(sulfosuccinic acid,SSA) 16
2-5-1-3 硫酸(sulfuric acid) 17
2-5-2其他薄膜的文獻結果 20
2-5-2-1幾丁聚醣/海藻酸鈉(sodium alginate)/聚氟化亞乙烯
(polyvinylidene fluoride,PVDF)複合膜 20
2-5-2-2 聚乙烯醇[poly(vinyl alcohol),PVA]多層混合基質膜(multilayer mixed matrix membranes, MMMMs) 22
2-5-2-3 聚乙烯醇-分子篩4A多層膜 24
第三章 實驗方法與儀器原理介紹 26
3-1 藥品 26
3-2 實驗設備與儀器 27
3-3 薄膜製備流程 28
3-4 滲透蒸發(Pervaporation)實驗 31
3-4-1 操作流程 31
3-4-2 計算方法 34
3-4-3 氣相層析儀(GC) 35
3-5 膨潤(Swelling)實驗 36
3-6 薄膜性質分析 37
3-6-1 傅立葉紅外線光譜儀(FT-IR) 37
3-6-2 熱重分析儀(TGA) 37
3-6-3 掃瞄式電子顯微鏡(SEM) 37
3-6-4 X光繞射儀(XRD) 39
第四章 結果與討論 40
4-1薄膜性質分析 40
4-1-1 傅立葉紅外線光譜儀(FT-IR) 40
4-1-2 熱重分析儀(TGA) 42
4-1-3 掃瞄式電子顯微鏡(SEM) 44
4-1-4 X光繞射儀(XRD) 45
4-2 膨潤性質 46
4-3 滲透蒸發實驗結果 49
4-3-1 交聯時間的影響 49
4-3-2 分子篩的性質影響 54
4-3-2-1 添加量的影響 55
4-3-2-2 孔洞大小的影響 58
4-3-2-3 親水性的影響 61
4-3-3 溫度的影響 65
第五章 結論與未來展望 70
參考文獻 72
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