Valorization of sugarcane bagasse C5-fraction by furfural production mediated by renewable glycine-based ionic liquid

Author(s)

Gomes, Gustavo R. ; Scopel, Eupidio ; Breitkreitz, Marcia C. ; Rezende, Camila A. ; Pastre, Julio C.

• Document type: Journal article
• Source: INDUSTRIAL CROPS AND PRODUCTS; v. 191, p. 11-pg., 2023-01-01.

Abstract

In this work, a green method to produce furfural from sugarcane bagasse (SCB) acid hydrolysates is proposed via a route mediated by a renewable glycine-based ionic liquid, [GlyIm][HSO4], and using a green biphasic system composed of water (reaction solvent) and 2-methyltetrahydrofuran (2-MeTHF extraction solvent) to avoid side reactions and optimize furfural yields. The process was carried out in two steps: (i) SCB acid hydrolysis and (ii) furfural production from the acid hydrolysates. The best conditions for C5 sugar extraction from sugarcane bagasse (150 degrees C, 30 min, 4% v/v H2SO4) were determined based on a 23 full factorial design. The best conditions extracted up to 85% of hemicellulose, mainly as xylose, resulting in a solid prone to further valorization as a co product. Optimized conditions for furfural production using xylose as the sugar source (180 degrees C for 10 min using 10 eq. of ionic liquid) were also determined using a 23 full factorial design and resulted in 87 & PLUSMN; 2% of furfural yield. According to the Design of Experiments (DoE), higher furfural yields were achieved at 180 degrees C, regardless of the reaction time (10 or 60 min). By applying the optimized conditions for furfural production in the sugarcane hydrolysates, a 90% furfural yield was achieved, and no lignin interference was observed in furfural production. (AU)

• FAPESP's process: 18/09861-2 - Synthesis of novel ionic liquids from renewable sources and application on biomass conversion
• Grantee: Gustavo Rodrigues Gomes
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 18/23769-1 - Preparation and applications of nanostructures from plant biomass
• Grantee: Camila Alves de Rezende
• Support Opportunities: Regular Research Grants
• FAPESP's process: 14/26378-2 - Development of methodologies and synthetic processes employing a new technological platform: micro and meso reactor assisted synthesis of natural products and derivatives with potential pharmacological activity
• Grantee: Júlio Cezar Pastre
• Support Opportunities: Research Grants - Young Investigators Grants
• FAPESP's process: 21/06661-5 - Enabling technologies for the sustainable chemical synthesis of platform molecules, new chemicals and bioactive compounds
• Grantee: Júlio Cezar Pastre
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Young Investigators Grants - Phase 2
• FAPESP's process: 20/11578-7 - Enabling technologies allied to green chemistry: synthesis of high value-added compounds from biomass derivatives
• Grantee: Júlio Cezar Pastre
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
• FAPESP's process: 19/19360-3 - Plant cell wall-inspired nanocomposite hydrogels for biomedical applications
• Grantee: Eupídio Scopel
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 14/25770-6 - New frontiers in cross-coupling reactions promoted by palladium: combining enantioselective catalysis, C-H activations, new materials and in flux reactions aiming at high efficiency and sustainability in synthetic processes
• Grantee: Carlos Roque Duarte Correia
• Support Opportunities: Research Projects - Thematic Grants