期刊
ENERGY & FUELS
卷 35, 期 23, 页码 19543-19552出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.energyfuels.1c03169
关键词
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资金
- National Natural Science Foundation of China [21978317, 22178375]
- Natural Science Foundation of Jiangsu Province [BK20200028]
- Foundation of State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering [2020-KF-24]
- Qing Lan Project
- Priority Academic Program Development of Jiangsu Higher Education Institutions
The study successfully converted lignin model compound DPE into cyclohexane using the Ru/HZSM-5 catalyst, and further investigated the reaction mechanism and structure-performance relationship.
The hydrodeoxygenation (HDO) reaction represents an important process for the high-value utilization of lignin and its model compounds. Here, the Ru/HZSM-5 catalyst containing a large number of acid sites was prepared by an incipient wetness impregnation method. Diphenyl ether (DPE) as a typical model compound in lignin could be completely converted into cyclohexane over the Ru/HZSM-5 catalyst under mild conditions (210 degrees C, 1 MPa H-2, and 2 h). The oxygen atoms in lignin and other model compounds could be also effectively removed via the HDO reaction catalyzed by Ru/HZSM-5 in this study. The coexistence of both the function of Ru metal for hydrogenolysis and acid sites in the pores of HZSM-5 for deoxidation was responsible for the entire HDO reaction. The structure-performance relationship of the Ru/HZSM-5 catalyst in the HDO was investigated and the reaction pathway for the HDO of DPE was analyzed.
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