Catalytic hydrotreatment of humins into cyclic hydrocarbons over solid acid supported metal catalysts in cyclohexane
| Autor: | Hai Cheng, Xunfeng Lan, Yinmin Zhang, Qineng Xia, Yao Zhang, Junmin Sun, Yongfeng Zhang, Daqian Ding |
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| Rok vydání: | 2021 |
| Předmět: |
Cyclohexane
Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Bifunctional catalyst Catalysis chemistry.chemical_compound Fuel Technology chemistry Polymerization Yield (chemistry) Furan Electrochemistry Humin Organic chemistry 0210 nano-technology Selectivity Energy (miscellaneous) |
| Zdroj: | Journal of Energy Chemistry. 53:329-339 |
| ISSN: | 2095-4956 |
| Popis: | Humins are common undesirable sideproducts during many acid-catalyzed reactions in renewable biomass platform conversion. However, few studies have been reported to the efficient utilization of humins. For the first time, the selective catalytic conversion of biomass-derived humins into cyclic hydrocarbons with high conversion rate and selectivity is presented using a home-made Ru/W-P-Si-O bifunctional catalyst. The multistage polymerization structure of humins was studied through controlled experiments. Results show that the C C bond network can be efficiently depolymerized at a mild reaction temperature of 340–380 °C, catalyzed by the cooperative catalysis of nano-Ru particles and porous strong Lewis solid acid. Particularly, 95.4% conversion of humins was achieved under the optimal condition with up to 88.3% yield of cyclic hydrocarbons. The detailed composition after liquefaction was also analyzed. This study paves the way for the efficient production of cyclic and aromatic hydrocarbons from furan-derived humin polymer through Lewis acid-catalyzed Diels–Alder reactions between furan rings. |
| Databáze: | OpenAIRE |
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