● Methods for processing Kraft lignin into monomers or alternative liquid fuels.
● Facilitates sustainable production of bio-oil with a high yield under moderate conditions.
Lignocellulosic biomass has gained attention as a promising substitute for fossil fuels. However, 95% of industrial lignin is mainly burned for energy recovery or sent to landfills while a mere 5% is employed in the production of various chemicals. Lignin’s inherent recalcitrant nature poses significant challenges to the depolymerization process, often complicating the procedure.
University of Alberta researchers developed a method to depolymerize Kraft lignin without a metal catalyst, which resulted in bio-oil yield of 55% from dry lignin. Additionally, the use of nickel-based catalyst enhanced the bio-oil yield and minimized the residual solids post-reaction. The findings indicated a significant enhancement in bio-oil yield, exceeding 60%. Following the depolymerization of lignin, the resulting solid residues were purified to produce biochar. The potential of obtained biochar was evaluated as an effective adsorbent for the heavy metals in water treatment. The results showed that biochar has a considerable potential for lead adsorption.
Transforming discoveries and innovations into reality is a complex and lengthy process. UAlberta’s Technology Transfer Services (TTS) team helps facilitate this journey. Part of the Vice-President (Research and Innovation) portfolio, TTS helps researchers, postdoctoral fellows, staff and students transform innovations and discoveries into reality—moving them out of the university to benefit society, the economy, the world.
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