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Student Number 93324014
Author Pei-Ling Weng(翁佩伶)
Author's Email Address No Public.
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Department Chemical and Materials Engineering
Year 2005
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title 在金觸媒與鉑觸媒上進行苯及甲苯的完全氧化反應之研究
Date of Defense 2006-06-26
Page Count 75
Keyword
  • benzene
  • gold
  • platinum
  • toluene
  • Abstract Au/CeO2 and Au/V2O5/CeO2 catalysts prepared by deposition precipitation (DP) were studied for benzene and toluene complete oxidation reactions. The influence of the gold and vanadia loadings and calcinations temperature on the catalytic activities were studied. The catalysts were characterized by XRD, BET, TEM and XPS. Catalysts with 1wt.% gold loading and calcined at 300℃ decompose benzene completely at 200℃and decompose toluene completely at 230℃. Impregnation of vanadium oxide on ceria promotes the activity of gold. Benzene decomposes completely at 160℃ over catalysts impregnated with 2wt.% vanadium oxide. Toluene decomposes completely at 210℃over impregnated with 4wt.% vanadium oxide. When Au/CeO2 is calcined at 300℃, Au+ is present on the surface and the activity is better than the sample calcined at 400℃. The results of life tests show that 1wt.%Au/CeO2 maintains 100% conversion at 230℃ after 120 hours and 1wt.%Au/4wt.%V2O5/CeO2 maintains above 97% conversion at 210℃after 120 hours.
    We also compare the activities of benzene decomposition on supported Au and supported Pt catalysts. Pt/Al2O3 and Pt/CeO2 prepared by different methods (incipient wetness impregnation and deposition precipitation) were studied for benzene completely oxidation and compare the activities between Au/CeO2, Pt/Al2O3 and Pt/CeO2. Catalyst prepared by deposition precipitation with 1wt.% platinum loading ,calcined at 350℃ and reduced at 350℃ decomposes benzene completely at 210℃.
    Table of Content 目錄
    誌謝I
    摘要II
    AbstractIII
    目錄IV
    圖目錄VI
    表目錄IX
    第一章序論1
    第二章文獻回顧3
    2.1金觸媒的催化反應3
    2.1.1 一氧化碳的氧化3
    2.1.2碳氫化合物的氧化4
    2.1.3水氣轉化5
    2.2鉑觸媒催化反應5
    2.3苯與甲苯完全氧化反應6
    2.3.1苯完全氧化反應6
    2.3.2甲苯完全氧化反應9
    2.4 觸媒的製備方式與擔體的影響12
    2.4.1製備方式的影響12
    2.4.2擔體的影響14
    第三章實驗16
    3.1 實驗藥品16
    3.2實驗儀器17
    3.3實驗方法18
    3.3.1觸媒擔體製備18
    3.3.2金與鉑觸媒製備18
    3.3.3檢量線的製備19
    3.3.4反應活性測試20
    3.4鑑定方法25
    第四章結果與討論29
    4.1 觸媒的鑑定-X光繞射光譜29
    4.2 觸媒TEM影像35
    4.3 觸媒表面積及元素分析42
    4.4 觸媒表面化學分析45
    4.5觸媒反應結果54
    (一)苯的完全氧化反應54
    4.5.1金負載量對Au/CeO2活性的影響54
    4.5.2 不同鍛燒溫度對活性的影響56
    4.5.3還原與否對Pt/Al2O3活性的影響60
    4.5.4鉑負載量對Pt/CeO2 與Pt/Al2O3活性的影響61
    4.5.5製備方式對Pt/CeO2 與Pt/Al2O3活性的影響64
    4.5.6添加釩氧化物對Pt/CeO2活性的影響並與Au/CeO2比較65
    (二)甲苯的完全氧化反應68
    4.5.7 不同鍛燒溫度對活性的影響68
    4.5.8 添加釩氧化物對活性的影響69
    4.6觸媒耐久性測試70
    第五章結論72
    參考文獻73
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    Advisor
  • Sze-Ming Yang(楊思明)
  • Files
  • 93324014.pdf
  • approve immediately
    Date of Submission 2006-07-19

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