期刊
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
卷 94, 期 12, 页码 3951-3959出版社
WILEY
DOI: 10.1002/jctb.6197
关键词
Pinus radiata wood; fractionation; autohydrolysis; organosolv; enzymatic hydrolysis
类别
资金
- Ministerio de Economia y Competitividad [CTQ2017-88623R]
- Comunidad de Madrid [P2018/EMT-4348]
BACKGROUND Lignocellulosic biomass is a promising renewable feedstock to obtain fuels and chemicals. However, a suitable pretreatment is required to separate its main components and overcome its structural resistance to enzymatic hydrolysis. In this work, a sequential pretreatment composed of autohydrolysis (AH) and organosolv delignification (ORG) is used to fractionate Pinus radiata wood and improve the enzymatic hydrolysis. RESULTS The effect of three different AH pretreatment severities on the delignification degree of organosolv solid fractions was evaluated. In addition, enzymatic hydrolysis was performed to determine the efficiency of the combination of pretreatments. The results showed that a pretreated solid with high cellulose content (88%, w/w) and high delignification degree (88%) was achieved under mild conditions of AH (150 degrees C and 30 min) and acid-catalyzed ORG (185 degrees C, 75 min, 50% (w/w) ethanol and 1% (w/w) sulfuric acid), obtaining an enzymatic hydrolysis yield of 63%. CONCLUSION This study provides the most favorable conditions to fractionate a softwood, P. radiata, employing a two-step pretreatment based on AH followed by ORG. (c) 2019 Society of Chemical Industry
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据