Hydrodeoxygenation of p-Cresol over Pt/Al2O3 Catalyst Promoted by ZrO2, CeO2, and CeO2-ZrO2

被引：40
作者：
Wang, Weiyan [1 ,2 ]
Wu, Kui [1 ]
Liu, Pengli [1 ]
Li, Lu [1 ]
Yang, Yunquan [1 ]
Wang, Yong [2 ,3 ]
机构：
[1] Xiangtan Univ, Sch Chem Engn, Xiangtan 411105, Hunan, Peoples R China
[2] Washington State Univ, Voiland Sch Chem Engn & Bioengn, Pullman, WA 99163 USA
[3] Pacific Northwest Natl Lab, POB 999,902 Battelle Blvd, Richland, WA 99352 USA
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2016年 / 55卷 / 28期
关键词：
AQUEOUS-PHASE HYDRODEOXYGENATION; BIO-OIL; LIGNIN; OXIDATION; GUAIACOL; MODEL; ACID; NANOPARTICLES; PERFORMANCE; MECHANISM;
D O I：
10.1021/acs.iecr.6b00515
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
ZrO2-Al2O3 and CeO2 Al2O3 were prepared by a co-precipitation method and selected as supports for Pt catalysts. The effects of CeO2 and ZrO2 on the surface area and Bronsted acidity of Pt/Al2O3 were studied. In the hydrodeoxygenation (HDO) of p-cresol, the addition of ZrO2 promoted the direct deoxygenation activity on Pt/ZrO2-Al2O3 via C-aromatic-O bond scission without benzene ring saturation. Pt/CeO2-Al2O3 exhibited higher deoxygenation extent than Pt/Al2O3 due to the fact that Bronsted acid sites on the catalyst surface favored the adsorption of p-cresol. With the advantages of CeO2 and ZrO2 taken into consideration, CeO2-ZrO2-Al2O3 was prepared, leading to the highest HDO activity of Pt/CeO2-ZrO2-Al2O3. The deoxygenation extent for Pt/CeO2-ZrO2-Al2O3 was 48.4% and 14.5% higher than that for Pt/ZrO2-Al2O3 and Pt/CeO2-Al2O3, respectively.
引用
收藏
页码：7598 / 7603
页数：6
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