Ethyl Levulinate Obtained from Lignocellulosic Waste Material with Previous Delignification by Ultrasonic-Assisted Technique  

作　　者：Jorge Ernesto Solá-Pérez Hugo Saldarriaga-Norena Mario Murillo-Tovar 

机构地区：[1]Centro de Investigaciones Químicas,ICCBA,Universidad Autónoma del Estado de Morelos,Cuernavaca,México

出　　处：《Journal of Agricultural Chemistry and Environment》2017年第1期93-103,共11页农业化学和环境（英文）

摘　　要：Ultrasound-assisted pretreatment under mild operating conditions has been investigated for intensification of delignification to facilitate the obtaining of ethyl levulinate from biomass. The effect of pH (2 - 12), temperature (30°C - 70°C) and pretreatment time (0 - 120 minutes) has been studied for different biomass samples. The most favorable conditions were basic pH, temperature of 70°C and pretreatment time of 2 h, obtaining values of delignification near 80 percent. The ethyl levulinate is obtained in microwave directly via from samples before and after delignification and analyzed for GC-MS. The results evidenced better yields for the delignified samples.Ultrasound-assisted pretreatment under mild operating conditions has been investigated for intensification of delignification to facilitate the obtaining of ethyl levulinate from biomass. The effect of pH (2 - 12), temperature (30°C - 70°C) and pretreatment time (0 - 120 minutes) has been studied for different biomass samples. The most favorable conditions were basic pH, temperature of 70°C and pretreatment time of 2 h, obtaining values of delignification near 80 percent. The ethyl levulinate is obtained in microwave directly via from samples before and after delignification and analyzed for GC-MS. The results evidenced better yields for the delignified samples.

关 键 词：Ethyl Levulinate DELIGNIFICATION Wheat Straw Sugarcane Bagasse Maguey Bagasse 

分 类 号：R73[医药卫生—肿瘤]