愈创木酚在Pt/Al-SBA-15催化剂上的加氢脱氧反应

Hydrodeoxygenation of Guaiacol Over Pt/Al-SBA-15 Catalysts.

作者信息

Yu Mi Jin, Park Sung Hoon, Jeon Jong-Ki, Ryu Changkook, Sohn Jung Min, Kim Sang Chai, Park Young-Kwon

出版信息

J Nanosci Nanotechnol. 2015 Jan;15(1):527-31. doi: 10.1166/jnn.2015.8362.

DOI:10.1166/jnn.2015.8362

Abstract

Upgrading of bio-oil through catalytic hydrodeoxygenation (HDO) reaction was investigated for guaiacol as a model compound. A batch reactor was used for the reaction condition of 40 bar and 250 degrees C. The target product was cyclohexane. Pt/Al-SBA-15 with the Si/Al ratios of 20, 40, and 80 and Pt/HZSM-5 were used as the catalyst. The SBA-15 catalysts were characterized by N2 adsorption-desorption, X-ray diffraction analysis, and temperature programmed desorption of ammonia. The order of cyclohexane yield was Pt/Al-SBA-15 (Si/Al = 20) > Pt/Al-SBA-15(40) > Pt/Al-SBA-15 (80), indicating that the quantity of acid sites plays an important role in the HDO reaction. On the other hand, Pt/HZSM-5 led to a very low cyclohexane yield, in spite of its abundant strong acid sites, due to its small pore size.

摘要

以愈创木酚为模型化合物，研究了通过催化加氢脱氧（HDO）反应对生物油进行升级。在40巴和250摄氏度的反应条件下使用间歇式反应器。目标产物是环己烷。使用硅铝比为20、40和80的Pt/Al-SBA-15以及Pt/HZSM-5作为催化剂。通过N2吸附-脱附、X射线衍射分析和氨程序升温脱附对SBA-15催化剂进行了表征。环己烷产率顺序为Pt/Al-SBA-15（硅铝比=20）>Pt/Al-SBA-15（40）>Pt/Al-SBA-15（80），表明酸性位点的数量在HDO反应中起重要作用。另一方面，尽管Pt/HZSM-5有丰富的强酸位点，但由于其孔径小，导致环己烷产率非常低。