文献类型：会议论文

英文题名：Response Surface Optimization of Concentrated Sulfuric Acidic Hydrolysis of Poplar Sawdust

作者：Liu, Shanshan[1] Fang, Guigan[1] Deng, Yongjun[1] Han, Shanming[1]

第一作者：Liu, Shanshan

通信作者：Liu, SS[1]|[a0005d0dff940398ed65e]刘姗姗;

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing, Jiangsu, Peoples R China

会议论文集：International Conference on Chemical Engineering and Advanced Materials

会议日期：MAY 28-30, 2011

会议地点：Changsha, PEOPLES R CHINA

语种：英文

外文关键词：acidic hydrolysis; poplar sawdust; reducing sugar

年份：2011

摘要：The primary goal of this study was optimized condition for hydrolyzed of papermaking waste (poplar sawdust) as a pote ntial bio-ethanol source by sulfuric acid pretreatment. Based on 2(3) factorial design, fifteen operations were performed by varying on T, t and c (T: hydrolysis temperature, t: hydrolysis time and c: sulfuric acid concentration). The components of the hydrolysate and solid fractions were analyzed by GC, X-RD and SEM, respectively. The results showed that optimal condition was T 44.8 degrees C, t 120min and c 60%, and reducing sugar yield of 43.3% can be obtained. Through GC detection, glucose content of 26.10 g/L and xylose content of 9.00 g/L is available in hydrolyzate for fermentation. The residue crystallinity declined 74.34% from XRD analysis, the fiber structure was destroyed completely by acid hydrolysis from SEM photograph.