以異相觸媒進行鄰甲氧酚加氫脫氧之研究

The Study of Guaiacol Hydrodeoxygenation by Heterogeneous Catalysts

陳志清(Chj-Ching Chen) ； 劉瓊芳(Chiung-Fang Liu) ； 陳志豪(Chih-Hao Chen) ； 陳珠修(Ju-Shiou Chen) ； 祝經益(Chin-I Juch) ； 萬皓鵬(Hou-Peng Wan) ； 李宏台(Hom-Ti Lee)

《中華生質能源學會會誌》 29卷3&4期 (2010/12) Pp. 71-78

https://doi.org/10.6385/JBESC.201012.0071

摘要

本研究以工研院自製的Fe-觸媒、傳統加氫製程的過渡金屬觸媒(NiMo/γ-Al_2O_3、CoMo/γ-A1_2O_3)及貴金屬觸媒(Pt/ZrO_2和Pd/ZrO_2)進行觸媒結構成份鑑定，並於280°C與50 atm H_2@25°C，進行生質物中木質素裂解模擬物質-鄰甲氧酚之加氫脫氧反應，以比較各觸媒對鄰甲氧酚之轉化效率，並評估Fe-觸媒應用於生質物裂解油改質之可行性。根據XRD(X-ray Diffraction)分析結果可知，Fe-觸媒主成分為Fe_3O_4,而過渡金屬觸媒與貴金屬觸媒則因前驅物含量低且分散性佳，因此氧化物特性尖峰強度微弱。比較上述五種觸媒，於本研究所選用的氫化條件下進行加氫脫氧反應。由反應後產物的GC-MS圖譜可知，鄰甲氧酚之特性尖峰已消失，雖然產物各異，但皆是鄰甲氧紛加氫脫氧後之衍生產物，如苯、環己烷、環己烯或酚化物等。根據本研究結果，Fe-觸媒具有成為生質物裂解油加氫脫氧觸媒之潛力。藉由本研究之執行，有助於生質物裂解油觸媒氫化程序之開發與應用。

關鍵字

生質物裂解油 ； 加氫脫氧 ； 改質 ； 觸媒 ； 鄰甲氧酚

並列摘要

n the study, the Fe-catalyst synthesized by TR (Fe- TR), NiMo/ -Al_2O_3, CoMo/ -Al_2O_3, Pt/ ZrO_2, and Pd/ ZrO_2 catalysts were characterized for compositions, and used for hydrodeoxygenated (HDO) reaction at 280°C and 50 atm H_2@25°C to compare the conversion efficiency of guaiacol. Based on the XRD patterns of these catalysts, the major component of Fe-ITRI was Fe_3O_4. The XRD patterns of other catalysts were weak owing to the low concentration and well dispersion of metal oxides on supports. According to the patterns of GC-MS, the deoxygenated products of guaiacol by heterogeneous catalyic reaction were benzene, cyclohexane, cyclohexene, and phenol. The results of this study reveal the effect of Fe-catalyst in HDO reaction. It is useful to the design and operation of the upgrading process for biomass pyrolysis oil using heterogeneous catalysts

並列關鍵字

biomass pyrolysis oil ； hydrodeoxygenation ； upgrading ； catalyst ； guaiacol