| 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 |
| |
| 引用本文： | 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. |
| |
| 作者姓名： | 吴学众 李检秀 师德强 李秉正 |
| |
| 作者单位： | 广西科学院非粮生物质酶解国家重点实验室,国家非粮生物质能源工程技术研究中心,广西生物质炼制重点实验室,广西南宁,530007 |
| |
| 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 |
| |
| 摘 要： | 将甘蔗渣在二甘醇/丙三醇溶剂体系下液化,考察非离子型表面活性剂（NIS）：OP-10,OP-15,AEO-9,AEO-15,Tween-85,Tween-80,Span-60对液化的促进作用。结果AEO-15对提高甘蔗渣液化转化率效果最明显,相对于未使用AEO-15的液化体系,残渣率降低36.2%,液化产物羟值提高37.7%,重均分子量上升18.8%,液化产物分子量分布更佳,液化产物聚合分散度降低11.3%;而OP-10对液化中间产物在试剂体系中的分散溶解效果最好,液化最终产物羟值提高96%,达到791 mgKOH/g。这说明,NIS可以提高液化试剂对甘蔗渣的渗透能力,增强液化产物在液化试剂体系中的分散溶解,已经显著改善了甘蔗渣在二甘醇/甘油溶剂体系中的液化程度,液化效果接近或超过了甘蔗渣在聚乙二醇/甘油溶剂体系中的液化效果。
|
| 关 键 词： | 甘蔗渣 液化 甘油 二甘醇 非离子型表面活性剂 |
| 收稿时间： | 2011/1/7 0:00:00 |
Effects of Non-ionic Surfactants on the Liquefaction of Baggasse in Glycerol/Diethylene Glycol System |
| |
| WU Xue-zhong,LI Jian-xiu,SHI De-qiang and LI Bing-zheng.Effects of Non-ionic Surfactants on the Liquefaction of Baggasse in Glycerol/Diethylene Glycol System[J].Guangxi Sciences,2011,18(3):238-241,252. |
| |
| Authors: | WU Xue-zhong LI Jian-xiu SHI De-qiang and LI Bing-zheng |
| |
| Institution: | WU Xue-zhong,LI Jian-xiu,SHI De-qiang,LI Bing-zheng(State Key Laboratory of Non-Food Biomass and Enzyme Technology,National Engineering Research Center for Non-Food Biorefinery,Guangxi Key Laboratory of Biorefinery,Gangxi Academy of Sciences,Nanning,Guangxi,530007,China) |
| |
| 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 polyethyleneglycol/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 ... |
| |
| Keywords: | baggasse liquefaction glycerol diethylene glycol surfactants |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《广西科学》浏览原始摘要信息 |
| 点击此处可从《广西科学》下载免费的PDF全文 |
|
