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研究生:林漢君
研究生(外文):Han-Jun Lin
論文名稱:以導氧離子材料擔載鎳觸媒行二氧化碳與甲烷重組反應之研究
論文名稱(外文):Study of CO2 Reforming of Methane over Oxygen-Ion Conducting Material Supported Nickel Catalyst
指導教授:黃大仁黃大仁引用關係
指導教授(外文):Ta-Jen Huang
學位類別:碩士
校院名稱:國立清華大學
系所名稱:化學工程學系
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:2004
畢業學年度:92
語文別:中文
論文頁數:71
中文關鍵詞:重組二氧化碳甲烷氧化鈰導氧
相關次數:
  • 被引用被引用:3
  • 點閱點閱:101
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  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
本研究為使用導氧離子材料與α-Al2O3做為觸媒的擔體,擔載鎳金屬為本研究的活性金屬,其中導氧離子材料為Y2O3-doped CeO2(Y10%DC90%)、Gd2O3-doped CeO2(G10%DC90%)和Sm2O3-doped CeO2(S10%DC90%),以各種擔體進行XRD分析與測量其BET表面積大小,另外也對擔體做程溫還原(TPR)實驗,而活性實驗方面,做了擔體的定溫與程溫氧空缺實驗,與各觸媒的活性測試實驗。由氧空缺實驗後吾人發現,各種不同導氧離子材料的導氧性質不同,其中YDC在300℃到450℃表面氧空缺會抓住二氧化碳的其中一個氧產生晶格氧和一氧化碳,到了470℃以上晶格氧才會有往內部氧空缺傳導的現象。活性實驗結果明顯看出,具導氧離子效果的擔體,隨溫度上升,導氧離子性出現,反應會趨向且幫助重組反應,並不會幫助逆向水氣轉移反應,而使得H2/CO值更趨向於1,且吾人認為2wt%Ni/SDC觸媒為較佳的觸媒,因為不管在各溫度,他都有較高的反應性,及不易積碳的能力。
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