Abstract
The complete conversion of Kraft lignin is examined over a moC(1-x)/Cu-MgAlOz catalyst in pure ethanol to give value-added chemicals with small molecular weight, including C-6 alcohols, C-8-C-10 esters, benzyl alcohols and arenes, without the formation of char or tar. MoC1-x/Cu-MgAlOz exhibited much higher activity than the previously reported MoC1-x/AC, CuMgAlOy and Cu-MgAlOz catalysts and achieved the highest yield of aromatic compounds, 575 mg/g lignin, at 330 degrees C. The complete cleavage of aryl-O bonds in phenols is observed at temperatures over 300 degrees C. Furthermore, the MoC1-x/Cu-MgAlOz catalyst is reusable with a 22.4% loss in the yield of aromatic compounds after 5 cyclic runs. (C) 2016 Elsevier B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 305-313 |
| Number of pages | 9 |
| Journal | Applied Catalysis B: Environmental |
| Volume | 202 |
| DOIs | |
| Publication status | Published - Mar 2017 |
| MoE publication type | A1 Journal article-refereed |
Funding
The financial support from the Ministry of Science and Technology of China under Contract No. 2011DFA41000 and the Natural Science Foundation of China under Contract No. 21336008 are gratefully acknowledged. This research was also supported in part by the Program of Introducing Talents to the University Disciplines under File No. B06006 and the Program for Changjiang Scholars and Innovative Research Teams in Universities under File No. IRT 0641.
Keywords
- Lignin
- Catalysis
- Depolymerization
- Molybdenum carbide
- Mixed metal oxide
- HYDROGENOLYSIS PROCESS
- BOND-CLEAVAGE
- LIQUID FUELS
- DEPOLYMERIZATION
- CONVERSION
- BIOMASS
- MODEL
- FRAGMENTATION
- VALORIZATION
- DEGRADATION