Hydrodeoxygenation of soybean oil methyl esters to alkane biodiesel over the PdMoP/γ-Al2O3 catalyst

YAO Min; WANG Yan-di; LU Mei-zhen; JI Jian-bing; LIU Xue-jun

Volume 47 Issue 12

Dec. 2019

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Article Navigation > Journal of Fuel Chemistry and Technology > 2019 > 47(12): 1450-1457

YAO Min, WANG Yan-di, LU Mei-zhen, JI Jian-bing, LIU Xue-jun. Hydrodeoxygenation of soybean oil methyl esters to alkane biodiesel over the PdMoP/γ-Al2O3 catalyst[J]. Journal of Fuel Chemistry and Technology, 2019, 47(12): 1450-1457.

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YAO Min, WANG Yan-di, LU Mei-zhen, JI Jian-bing, LIU Xue-jun. Hydrodeoxygenation of soybean oil methyl esters to alkane biodiesel over the PdMoP/γ-Al₂O₃ catalyst[J]. Journal of Fuel Chemistry and Technology, 2019, 47(12): 1450-1457.

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Hydrodeoxygenation of soybean oil methyl esters to alkane biodiesel over the PdMoP/γ-Al₂O₃ catalyst

Zhejiang Province 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

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Corresponding author: LIU Xue-jun, Tel: 0571-88320598, E-mail: liuxuejun@zjut.edu.cn
Received Date: 2019-07-25
Rev Recd Date: 2019-10-28

Available Online: 2021-01-23

Publish Date: 2019-12-10

Abstract

Abstract

The PdMoP/γ-Al₂O₃ catalyst was prepraed through loading the Pd, Mo, and P elements on the γ-Al₂O₃ support by incipient impregnation method and characterized by XRD, NH₃-TPD, XPS, Py-FTIR, nitrogen physisorption and STEM-EDS. The catalytic performance of PdMoP/γ-Al₂O₃ in the hydrodeoxygenation of soybean oil methyl ester to alkane biodiesel was invetigqated and the operation conditions were optimized. The results show that a combination of Pd, Mo and P elements can effectively adjust the catalyst acidity; Mo can reduce strong acidity, whereads P can enhance weak acidity, leading to a decrease in the B/L ratio of weak acid sites and a slight increase in the B/L ratio of strong acid sites. The optimized hydrodeoxygenation conditions are 315 ℃, 1.5 MPa, WHSV=0.5 h^-1, and V(hydrogen)/V(esters)=1100; under such conditions, the conversion of soybean oil methyl esters reaches 98.4% and the C_15-18 alkane yield is 91.5%.
- hydrodeoxygenation,
- PdMoP/γ-Al₂O₃ catalyst,
- acid regulation,
- soybean oil methyl esters,
- alkane biodiesel

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References(27)

References

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