Citation: OUYANG Qian, YANG Ni, YAO Jing-wen, HUANG Jin, ZHANG Yi, LIU Xue-jun. Research on the catalytic performance of supported Pt catalyst for hydrodeoxygenation of biodiesel[J]. Journal of Fuel Chemistry and Technology, ;2018, 46(10): 1202-1209. shu

Research on the catalytic performance of supported Pt catalyst for hydrodeoxygenation of biodiesel

OUYANG Qian ¹ ,
YANG Ni ¹ ,
YAO Jing-wen ¹ ,
HUANG Jin ² ,
ZHANG Yi ¹ ,
LIU Xue-jun ^1,,

1.
Zhejiang Provincial Key Laboratory of Biofuel Utilization Technology, Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
2.
Zhejiang Pharmaceutical Co., Ltd. Changhai Biological Division, Shaoxing 312000, China

Corresponding author: LIU Xue-jun, zjutjjb@163.com
Received Date: 17 May 2018
Revised Date: 22 July 2018

Figures(6)

The Pt/Al₂O₃, Pt/Al₂O₃-ZSM-5 and Pt/ZSM-5 catalysts were prepared and characterized by XRD, BET, SEM and NH₃-TPD. The effects of crystal structure, acidity, pore size distribution and external shape of the three catalysts on the hydrodeoxygenation of fatty acid methyl esters were investigated under different reaction conditions. The results show that the Brønsted acidic sites and proportion of mesoporous volume were critical for the hydrodeoxygenation of fatty acid methyl esters. The Brønsted acidic site plays a major role in the C-O bond breakage of deoxygenation reaction, the mesopores improved the mass transfer efficiency of the entire reaction and avoided cracking of C_12-18 long chain alkanes. The hydrodeoxygenation activity of the three catalysts were as follow:Pt/Al₂O₃-ZSM-5>Pt/Al₂O₃>Pt/ZSM-5. The optimal reaction conditions were as follow:t=350 ℃, p=2 MPa, H₂/oil=1000, WHSV=0.5 h^-1. Under the optimal reaction conditions, the fatty acid methyl ester conversion of Pt/Al₂O₃-ZSM-5 was 99.4%, and the liquid yield of the target product was 86.8%.
- Pt/Al₂O₃-ZSM-5,
- hydrodeoxygenation,
- Brønsted acid,
- mesoporous volume,
- long chain alkanes
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