| Title |
Efficient depolymerization of lignin through microwave-assisted Ru/C catalyst cooperated with metal chloride in methanol/formic acid media |
| ID_Doc |
29199 |
| Authors |
Shao, LP; Wang, C; Liu, Y; Wang, M; Wang, LY; Xu, F |
| Title |
Efficient depolymerization of lignin through microwave-assisted Ru/C catalyst cooperated with metal chloride in methanol/formic acid media |
| Year |
2022 |
| Published |
|
| DOI |
10.3389/fbioe.2022.1082341 |
| Abstract |
Lignin, an abundant aromatic biopolymer, has the potential to produce various biofuels and chemicals through biorefinery activities and is expected to benefit the future circular economy. Microwave-assisted efficient degradation of lignin in methanol/formic acid over Ru/C catalyst cooperated with metal chloride was investigated, concerning the effect of type and dosage of metal chloride, dosage of Ru/C, reaction temperature, and reaction time on depolymerized product yield and distribution. Results showed that 91.1 wt% yield of bio-oil including 13.4 wt% monomers was obtained under the optimum condition. Yields of guaiacol-type compounds and 2,3-dihydrobenzofuran were promoted in the presence of ZnCl2. Formic acid played two roles: (1) acid-catalyzed cleavage of linkages; (2) acted as an in situ hydrogen donor for hydrodeoxygenation in the presence of Ru/C. A possible mechanism for lignin degradation was proposed. This work will provide a beneficial approach for efficient depolymerization of lignin and controllable product distribution. |
| Author Keywords |
lignin; microwave; degradation; synergetic catalysis; controllable product distribution |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000905208000001 |
| WoS Category |
Biotechnology & Applied Microbiology; Engineering, Biomedical |
| Research Area |
Biotechnology & Applied Microbiology; Engineering |
| PDF |
https://www.frontiersin.org/articles/10.3389/fbioe.2022.1082341/pdf
|