Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 61, Issue 4, Pages 1675-1683Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.1c04695
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Funding
- National Natural Science Foundation of China [21774059]
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals
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In this study, a Co/m-ATP catalyst was prepared using attapulgite as a carrier to depolymerize lignin. Under appropriate reaction conditions, the catalyst showed high bio-oil yield and low char yield, indicating its potential application in lignin depolymerization.
With an aromatic structure, lignin has great potential for the production of high value-added chemicals. In this study, Co/m-ATP catalyst was prepared by the co impregnation method to depolymerize lignin with inexpensive attapulgite as a carrier, 1,4-dioxane as a solvent, and ethanol as an in situ hydrogen source. Meanwhile, formaldehyde stabilization facilitates lignin monomer production during biomass depolymerization. The effects of Co particle loading and reaction conditions (e.g., temperature and reaction time) on lignin conversion and product yield were investigated, resulting in a low char yield (6.6 wt %) and high bio-oil yield (63.1 wt %) when alkali lignin was depolymerized over the Co/m-ATP catalyst (cobalt loading of 15 wt %) at 220 degrees C for 8 h. Therefore, this catalyst with the advantage of low cost and high catalytic activity would be a potential catalyst during the depolymerization of lignin.
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