Room: Callelongue Gradin
Date: Monday, 24 June 2024
Time: 17:30 - 18:30 CEST
Session code 6AO.9
Biorefinery approaches to valorize lignocellulosic compounds into chemicals
Upscaling of Continuous Reductive Depolymerization of Lignins: Effect of Process Conditions on Operability and Product Quality
Short Introductive summary
The research described in these abstract focusses on the continuous depolymerization of lignin. Reductive depolymerization has seen remarkable growth in maturity recently, albeit in a smaller (mg to g) semi-continuous scale and with wood as the starting material. However, to satisfy the immediate demand of such lignin derivable chemicals, integration of reductive depolymerization with existing biorefineries (kraft, hydrolysis, organosolv) is crucial. Therefore, this study aims to aid the upscaling of lignin valorization, by demonstrating the long term continuous reductive depolymerization of several lignins from existing commercial biorefineries. Detailed optimization study was performed to elucidate its effect on both process stability and product quality. With the optimized process conditions, the continuous reductive depolymerization of hydrolysis lignin is demonstrated for a maximal run time of about 77 hours on stream (TOS) during which the product quality remains stable, evidenced by detailed product characterization using several analytical techniques. Additionally, product development (PU foams, epoxy resins) using the depolymerized lignin products is also reported.
Presenter
Balaji SRIDHARAN
Vito, Sustainable Chemistry Dpt., BELGIUM
Presenter's biography
I am a researcher at the Vito in Belgium working on the valorization of biomass and particularly lignins to biofuels and more platform chemicals. I am extrememly passionate about research on sustainable energy and developing solutions to a more carbon neutral society.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
P. Jusner, Vito, Mol, BELGIUM
B. Daelemans, Vito, Mol, BELGIUM
M. Comà BonachÃ, Vito, Mol, BELGIUM
E. Feghali, Vito, Mol, BELGIUM
K. Vanbroekhoven, Vito, Mol, BELGIUM
Session reference: 6AO.9.3