Title:
5-HMF and LA Production from Sugarcane Bagasse in a Cyrene-IL Bi-catalytic System
Author(s):
Tokoyi, V., Mthembu, L.D., Kabane, B., Deenadayalu, N.
Document(s):
Paper
Abstract:
In contemporary biorefinery systems, the effective removal of lignin from the established sugar platform is crucial; nonetheless, it poses considerable challenges due to the high costs involved with this process, which continues to be a significant restriction. This study introduces a novel biorefinery concept utilizing a biphasic system with Cyrene and ionic liquids (ILs) to simultaneously achieve effective lignin removal, generate more polysaccharide reducing ends, and enhance the accessible surface area of cellulose to produce high-quality transformed carbohydrates, specifically 5-HMF and LA. This was accomplished by creating, characterizing, and applying two systems, specifically [1-allyl-3-mim][Form]+Cyrene and [2-E-1,1,3,3-TMG][I]+Cyrene to catalytically convert SCB within a temperature range of 75 °C, 125 °C, and 175 °C, with reaction times of 1, 3, and 5 hours. The highest achieved responses for both 5-HMF (32.72%) and LA (55.6%) utilizing [1-allyl-3-mim][Form]+Cyrene demonstrates the potential and efficacy of this system, in conjunction with the Brønsted estimated acidity property, to be more selective and efficient than the [2-E-1,1,3,3-TMG][I]+Cyrene system for the streamlined transformation and generation of 5-HMF and LA. The effective application of these engineered systems in pre-treatment chemistry considerably advances the implementation of a "closed loop" biorefinery process.
Keywords:
biofuel, biorefinery, catalytic conversion, cogeneration, bioproducts
Topic:
Biomass Conversion to Biomaterials and Chemicals
Subtopic:
Co-production of biofuels and biochemicals
Event:
33rd European Biomass Conference and Exhibition
Session:
6BO.11.2
Pages:
1086 - 1092
ISBN:
978-88-89407-25-7
Paper DOI:
10.5071/33rdEUBCE2025-6BO.11.2
Price:
FREE
