Pretreatment of Corn Stover Using Supercritical CO2 with Water-Ethanol as Co-solvent

作     者：吕惠生 任苗苗 张敏华 陈莹 

作者机构：Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin 300072 China Tianjin University R&D Center for Petrochemical Technology Tianjin 300072 China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2013年第21卷第5期

页      面：551-557页

核心收录：

学科分类：0821[工学-纺织科学与工程] 082903[工学-林产化学加工工程] 08[工学] 0829[工学-林业工程] 082201[工学-制浆造纸工程] 0822[工学-轻工技术与工程] 082103[工学-纺织化学与染整工程] 

主　　题：corn stover supercritical fluid pretreatment lignocellulosic biomass 

摘      要：Supercritical carbon dioxide,with water-ethanol as co-solvent,was applied to pretreat corn stover to enhance its enzymatic *** efficiency of pretreatment was evaluated by the final reducing sugar yield obtained from the enzymatic hydrolysis of *** the operation conditions of pretreatment pressure 15 MPa,temperature 180 ℃ and time 1 h,the optimal sugar yield of 77.8℅ was *** electron microscopy(SEM) and chemical composition analysis were applied to the pretreated corn *** results showed that the surface morphology and microscopic structure of pretreated corn stover were greatly *** the pretreatment,the contents of hemicellulose and lignin were reduced *** more cellulose was exposed,increasing the sugar yield.