Production of liquid fuels from Kraft lignin over bimetallic Ni-Mo supported on ZIF-derived porous carbon catalyst.

Autor: Guo G; Laboratory of Basic Research in Biomass Conversion and Utilization, University of Science and Technology of China 96 Jinzhai Road Hefei 230026 PR China liwenzhi@ustc.edu.cn., Li W; Laboratory of Basic Research in Biomass Conversion and Utilization, University of Science and Technology of China 96 Jinzhai Road Hefei 230026 PR China liwenzhi@ustc.edu.cn.; Institute of Energy, Hefei Comprehensive National Science Center Hefei 230031 PR China., Ahmed T; Laboratory of Basic Research in Biomass Conversion and Utilization, University of Science and Technology of China 96 Jinzhai Road Hefei 230026 PR China liwenzhi@ustc.edu.cn., Hu D; Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei 230026 PR China., Cui R; Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei 230026 PR China., Zhang B; Laboratory of Basic Research in Biomass Conversion and Utilization, University of Science and Technology of China 96 Jinzhai Road Hefei 230026 PR China liwenzhi@ustc.edu.cn., Zhang X; Laboratory of Basic Research in Biomass Conversion and Utilization, University of Science and Technology of China 96 Jinzhai Road Hefei 230026 PR China liwenzhi@ustc.edu.cn.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2021 Nov 25; Vol. 11 (60), pp. 37932-37941. Date of Electronic Publication: 2021 Nov 25 (Print Publication: 2021).
DOI: 10.1039/d1ra05354j
Abstrakt: Non-noble bimetallic NiMo supported on zeolitic imidazolate framework-derived porous carbon (NiMo@FDC) catalyst for lignin depolymerization has been successfully developed. The synergism between Ni and Mo species in NiMo@FDC catalyst could promote the catalytic cleavage of C-O linkages in Kraft lignin. At a low reaction temperature of 240 °C and under 4 MPa H 2 , the lignin liquefaction yield was 98.85 wt% and minimum coke yield was 1 wt%, particularly when using 10%NiMo@FDC catalyst. Additionally, at a high reaction temperature of 300 °C and under 2 MPa H 2 , there was an overall yield of 86 wt% of liquid product and 42 wt% of petroleum ether soluble product. The higher heating value (HHV) increased from 27.65 MJ kg -1 to 34.11 MJ kg -1 . In the cycling experiment, the bifunctional catalyst also demonstrated reversability and stability. The synergy of Ni hydrogenation sites and Mo coupled adsorption sites identified a possible mechanism path, which could offer considerable potential for lignin depolymerization.
Competing Interests: The authors declare that there are no conflicts interest.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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