• 作者： Shiau, Ching-Yeh; Liaw, Shin-Tsi
• 中文摘要： 本論文之目的是希望利用銅-鋇觸媒將正丁醇脫氫轉化為正丁醛,並探討其反應動力學。研究之溫度範圍介於210-290.degree.C間,而時間因子則介於1.99至 70.6g-cat-hr/gmole之間,實驗結果證明銅-鋇觸媒對正丁醇脫氫反應具有相當的活性及選擇性; 最高轉化率可達 80%左右。實驗數據顯示正丁醇為一次反應,而其活化能約為14kcal/gmole。動力分析結果證實脫氫反應時,正丁醇吸附於銅-鋇觸媒上為反應的控制步驟。本論文並根據此一反應機構提出一反應動力式,此公式可相當準確地預估實驗結果。
• 英文摘要： Dehydrogenation of n-butanol over copper-barium catalyst was investigated in a fixed bed reactor. Experimental data were collected in the temperature range of 210-290.degree.C and at time factor ranging from 1.99 to 70.6g-cat-hr/gmole. A maximum conversion of 81% was observed and copper-barium catalyst was proved to be active and selective for the dehydrogenation of n-butanol. The reaction is found to be first order with an activation energy of 14.288kcal/gmole. Kinetic analysis indicated that the dehydrogenation appears to take place at a single site on the catalyst surface in which the adsorption of n-butanol was the controlling step with hydrogen adsorbed. A rate equation based on this mechanism can predict the experimental data quite well, with a standard deviation of.plmin.4.86%.
• 中文關鍵字： 銅-鋇觸媒; 正丁醇; 正丁醛; 脫氫反應; 動力學
• 英文關鍵字： Copper-Barium Catalyst; N-Butanol; Butyraldehyde; Dehydrogenation; Kinetics