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頁籤選單縮合
題名 | 烷烴選擇性氧化觸媒發展趨勢=Future Trends in the Molecular Design of Alkane Selective Oxidation Catalysts |
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作者姓名(中文) | 盧敏彥; | 書刊名 | 化工資訊月刊 |
卷期 | 15:6 2001.06[民90.06] |
頁次 | 頁12-19 |
分類號 | 468.8 |
關鍵詞 | 烷烴; 觸媒; 氧化反應; |
語文 | 中文(Chinese) |
中文摘要 | 隨著分析方法精確度之提昇、微結構分析技術之進步及經驗之累積, 觸媒活性中心分子微結構之組成及與活性╱選擇性關係也漸漸的被揭開,未來觸 媒合成將由過去的trial and error方式蛻變成分子設計方式,觸媒功能將會因 此而得到極顯著的提昇。此外,由於能源結構之變化,化學工業大幅依賴原油裂 解及烯烴╱芳香族為原料之時代將會漸漸轉變為小分子(C1-C4碳氫化合物)結 合及使用烷類為原料,使用價格低廉及來源充沛之原料,對提升經濟效益及能源 之充份利用皆有助益。(2)目前傳統觸媒合成技術尚無法應付此挑戰,必需發展 更先進之觸媒合成技術,例如分子設計觸媒合成技術,才能實現此理想,帶領化 學工業進入更高的技術層次。 |
英文摘要 | Despite being the least expensive and most abundant hydrocarbon feedstock available, alkanes are seldom used as the building blocks in the chemical industry. Alkanes are extremely stable and their direct conversion into valuable products are extremely difficult. As a result, lower alkanes at refinery or petroleum drilling sites are often flared. Combining novel catalysts with lower alkane (C1-C4) feedstock to make commodity petrochemicals has significant raw material cost advantaged over many conventional technologies based on olefins and aromatics. The problem with current selective oxidation of alkanes is that we are not yet able to achieve high selectivity and end up burning significant amounts of hydrocarbon. A major challenge for successful alkane utilization is to use molecular design techniques (such as sol-gel, precipitation-deposition, CVD and MOCVD) to synthesize highly active, selective and stable catalysts for the direct conversion of alkanes to olefins (ethylene and propylene) and oxygenates (such as syn-gas, ethylene oxide, acetic acid, acrolein, acrylonitrile, and propylene oxide). |
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