鐵觸媒氫化鄰甲氧酚之研究－溫度及壓力效應

The Study of Guaiacol Hydrodeoxygenation by Fe-Catalyst-Effects of Temperature and Pressure

陳志清(Chih-Ching Chen) ； 劉瓊芳(Chiung-Fang Liu) ； 游佩蓉(Pei-Jung Yu) ； 蘇咏筌(Yong-Cyuan Su) ； 張瑩璽(Ying-Hsi Chang) ； 萬皓鵬(Hou-Peng Wan) ； 李宏台(Hom-Ti Lee)

《先進工程學刊》 8卷1期 (2013/01) Pp. 9-13

摘要

本研究利用Fe觸媒進行鄰甲氧酚的加氫脫氧反應，探討反應溫度及壓力對鄰甲氧酚脫氧效率和產物莫耳分率之影響。從結果可知，在反應條件為280℃、氫氣9 MPa、反應1小時、觸媒與進料重量比例1/10時，鄰甲氧酚的轉化率可達100%，脫氧效率可達85.07%。從產物莫耳分率的變化趨勢可看出，甲基取代反應與氫化反應性明顯受溫度影響，當溫度高於280℃時有利酚的甲基取代反應進行，造成脫氧效率下降；相對地，高壓有利氫化反應進行，提升脫氧效率。

關鍵字

生質物裂解油 ； 加氫脫氧 ； 改質 ； 鐵觸媒 ； 鄰甲氧酚

並列摘要

In this study, the Fe-catalyst is used for guaiacol hydrodeoxygenation (HDO). And the effects of reaction temperature and hydrogen pressure to deoxygenation efficiency of guaiacol as well as product mole fraction are investigated. The result shows guaiacol conversion and deoxygenation efficiency reach 100% and 85.07% respectively under the hydrogenation conditions of 280℃, 9 MPa Hydrogen, and catalyst/feedstock weight ratio of 1/10 for 1 hour reaction. The methyl substitution and hydrogenation efficiency are obviously affected by temperature from the trend of molar fraction variance. Methyl substitution of phenol increases as the reaction temperature higher than 280℃ while deoxygenation efficiency decreases. In addition, higher hydrogen pressure benefits hydrogenation and increases the deoxygenation efficiency.

並列關鍵字

biomass pyrolysis oil ； hydrodeoxygenation ； upgrading ； catalyst ； guaiacol