高校化学工程学报2017，Vol.31Issue(6)：1466-1474,9.DOI:10.3969/j.issn.1003-9015.2017.06.028
生物油中内醚糖提取工艺优化及分析方法
Process Optimization and Analysis of Levoglucosan Extraction from Bio-Oil
摘要
Abstract
Bio-oil was produced from straw and further extracted with pure water. The extract was treated with active carbon and metal hydroxide (NaOH or Ca(OH)2) to remove organic colloid, pigments and aromatic compounds. EtOAc and water were used (V/V, 2:1) to extract crude levoglucosan which was further purified with EtOAc to obtain levoglucosan. RSM (response surface methodology) was employed to optimize levoglucosan separation. Water volume, active carbon weight and pH were considered as the independent variables, and levoglucosan concentration was the responsive variable. The relationship between the independent variables and dependent variable was explored by RSM. Mathematical regression model was established using Design Expert 8.0.6. The optimal combination of these parameters is found as pure water:bio-oil = 1:1 (V/V), active carbon:bio-oil = 0.05:1 (m/V). The results show that RSM is an appropriate approach for levoglucosan separation optimization. FTIR,HPLC and NMR results show that the optimal extraction yield of levoglucosan from the straw bio-oil is 58% with purity over 98%. This investigation provides a theoretical study for further research of levoglucosan separation from bio-oil. Furthermore, a fast and sensitive method is established for quantitative and qualitative analysis of levoglucosan.关键词
生物油/内醚糖/分离提纯/分析方法Key words
bio-oil/levoglucosan/separation and purification/analytical method分类
能源科技引用本文复制引用
王俊淇,鲁周民,尉芹,郑冀鲁,李宏伟,王志文..生物油中内醚糖提取工艺优化及分析方法[J].高校化学工程学报,2017,31(6):1466-1474,9.基金项目
财政部以大学为依托的农业科技推广模式建设(XTG2017-14). （XTG2017-14）
