广西科学2011，Vol.18Issue(3)：238-241,252,5.
非离子型表面活性剂对甘蔗渣在二甘醇/甘油溶剂中液化的影响
Effects of Non-ionic Surfactants on the Liquefaction of Baggasse in Glycerol/Diethylene Glycol System
摘要
Abstract
Bagasse could be liquefied into bio-polyols in the glycerol/diethylene glycol solvent system by the catalyst of sulfuric acid,but its conversion was not as effective as in polyethyle-neglycol/glycerol system. The liquefaction efficiency was highly improved by the addition of surfactants into the liquid solvents system. The effects of the composition of liquid solvent,the surfactant dosage,the liquefaction time and the surfactant types on the liquefaction efficiency were investigated. Among all the investigated surfactants,such as OP-10,OP-15,AEO-9,AEO -15,Tween-80,Tween-85 and Span-60,AEO-15 had the best performance in the liquefaction efficiency of bagasse in the system of glycerol/diethylene glycol. The residue rate of liquefied product decreased 36. 2% ,the hydroxyl value increased 37. 7% ,and the polydispersity cut down 11. 3% compared with the control sample. Surfactant OP-10 had the best efficiency in enhancing the dispersing and dissolving of liquefied intermediate product and the hydroxyl value of liquefied product reached 791 mg KOH/g. These results demonstrated that the non-ionic surfactant could enhance the permeability of reagent to bagasse,increase the dispersing and dissolving of liquefied intermediate product and improve the efficiency of bagasse liquefaction in di-ethylene glycol/glycerol solvent system significantly.关键词
甘蔗渣/液化/甘油/二甘醇/非离子型表面活性剂分类
化学化工引用本文复制引用
吴学众,李检秀,师德强,李秉正..非离子型表面活性剂对甘蔗渣在二甘醇/甘油溶剂中液化的影响[J].广西科学,2011,18(3):238-241,252,5.基金项目
广西青年科学基金项目(2009BM2021)、广西自然科学基金项目(0991006Z)、广西科学院基金项目(08YJ16SW06、10YJ25SW08)资助. （2009BM2021）
