The increasing demand for sustainable energy solutions necessitates innovative approaches to biomass utilization.This study introduces a comprehensive biorefinery model that valorizes poplar biomass into high-value pr...The increasing demand for sustainable energy solutions necessitates innovative approaches to biomass utilization.This study introduces a comprehensive biorefinery model that valorizes poplar biomass into high-value products,including ethanol,furfural,phenol,and biochar.These products not only serve as promising sources for biofuel and renewable chemicals but also contribute to pollution mitigation.The approach employs a biphasic pretreatment system utilizing p-toluenesulfonic acid,pentanol,and AlCl_(3) under optimized conditions(120℃ for 45 min),achieving remarkable efficiencies of 95.8%xylan removal,90.2%delignification,and 90.7%glucan recovery.The underlying mechanism,elucidated through density functional theory,demonstrates how the disruption of lignin-carbohydrate complexes via electrostatic and hydrogen-bonding interactions enhances product yields.The cellulose-rich substrate yielded 71.3 g/L ethanol,while solubilized xylan converted to 86.7%furfural without additional acid.Furthermore,lignin pyrolysis produced bio-oil containing over 45.2%phenolic compounds,while biochar demonstrated significant adsorptive capacity for perfluorooctanoic acid.Scaling this biorefinery model to process 140 million tons of poplar biomass annually reduces CO_(2)emissions by 75.3 million tons and provides socioeconomic savings of $17.3 billion,supporting sustainable industrial transformation.展开更多
基金funded by the National Natural Science Foundation of China(22278189,22478154)the Fundamental Research Funds for the Central Universities(Jiangnan University,JUSRP202501024)the Priority Academic Program Development of Jiangsu Higher Education Institutions,the 111 Project(No.111-2-06)。
文摘The increasing demand for sustainable energy solutions necessitates innovative approaches to biomass utilization.This study introduces a comprehensive biorefinery model that valorizes poplar biomass into high-value products,including ethanol,furfural,phenol,and biochar.These products not only serve as promising sources for biofuel and renewable chemicals but also contribute to pollution mitigation.The approach employs a biphasic pretreatment system utilizing p-toluenesulfonic acid,pentanol,and AlCl_(3) under optimized conditions(120℃ for 45 min),achieving remarkable efficiencies of 95.8%xylan removal,90.2%delignification,and 90.7%glucan recovery.The underlying mechanism,elucidated through density functional theory,demonstrates how the disruption of lignin-carbohydrate complexes via electrostatic and hydrogen-bonding interactions enhances product yields.The cellulose-rich substrate yielded 71.3 g/L ethanol,while solubilized xylan converted to 86.7%furfural without additional acid.Furthermore,lignin pyrolysis produced bio-oil containing over 45.2%phenolic compounds,while biochar demonstrated significant adsorptive capacity for perfluorooctanoic acid.Scaling this biorefinery model to process 140 million tons of poplar biomass annually reduces CO_(2)emissions by 75.3 million tons and provides socioeconomic savings of $17.3 billion,supporting sustainable industrial transformation.
