Catalytic performance of Ru/TiO2 on hydrodeoxygenation of levulinic acid dimer, taking sebacic acid as a model compound

被引：2
|
作者：
Wu, Han [1 ]
An, Hualiang [1 ]
Zhao, Xinqiang [1 ]
Wang, Yanji [1 ]
机构：
[1] Hebei Univ Technol, Tianjin Key Lab Chem Proc Safety, Sch Chem Engn & Technol, Hebei Prov Key Lab Green Chem Technol & Efficient, Tianjin 300130, Peoples R China
来源：
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 2022年 / 97卷 / 08期
基金：
中国国家自然科学基金;
关键词：
levulinic acid dimer; sebacic acid; hydrodeoxygenation; Ru/TiO2; catalyst; acid-base properties; degree of reduction; FATTY-ACIDS; RUTHENIUM CATALYSTS; LIQUID ALKANES; STEARIC-ACID; OLEIC-ACID; HYDROGENATION; PHENOL; DISPERSION; SUPPORT; HYDROGENOLYSIS;
D O I：
10.1002/jctb.7069
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
BACKGROUND: As a bio-derived platform molecule, levulinic acid can be converted to liquid fuels with similar components as aviation kerosene after undergoing aldol self-condensation and successive hydrodeoxygenation reactions. In view of its complicated composition, sebacic acid was selected as a model compound for the investigating the hydrodeoxygenation performance of the product of levulinic acid self-condensation in this work. RESULTS: Firstly, a series of supported metal catalysts were screened and characterized by temperature-programmed desorption of NH3 and CO2, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy and CO pulse chemisorption. The results indicated that Ru/TiO2 showed the highest selectivity to total long-chain alkanes at the complete conversion of sebacic acid. Then, the influence of preparation conditions on the catalytic performance of Ru/TiO2 and the effect of reaction conditions on the hydrodeoxygenation of sebacic acid were studied. On this basis, possible hydrodeoxygenation reaction routes were discussed. CONCLUSION: The excellent catalytic performance of Ru/TiO2 is attributed to a moderate degree of Ru reduction and dispersion, along with its unique acid-base characteristics. (c) 2022 Society of Chemical Industry (SCI).
引用
收藏
页码：1995 / 2004
页数：10
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