纤维素科学与技术2011，Vol.19Issue(3)：22-27,6.
亚／超临界乙醇条件下杨木屑与甘油共液化研究
Liquefaction of Poplar Sawdust by Supercritical Ethanol and Glycerin
摘要
Abstract
Using sawdust （60-80 mesh） as raw material, glycerin as liquid agent, and acid as catalyst, Liquefied oil was made in the condition of supercritical ethanol. The result demonstrates that the degree of liquefaction was up to 98% under the reaction conditions of 2.5% sulfuric acid, glycerin/ethanol/sawdustas 5/10/2, and reaction temperature 250℃ for 1 h. Liquefied oil were measured that the water content was 3.04%, viscosity （20℃） was 524 mm^2/s, acid value was 2.1 mg KOH/g, the hydroxyl value was 846 mg KOH/g, and it was analyzed by IR. GPC and GC-MS. The results show that the product is rich in hydroxyl groups, Average molecular weight was 811, and polyester/polyether polyols were detected in the product like ethyl pentanoate, -4-oxo- and glycerin, -triethyl-, etc.关键词
杨木屑/液化/超临界乙醇Key words
Poplar sawdust/liquefaction/supercritical ethanol分类
化学化工引用本文复制引用
左志越,蒋剑春,徐俊明..亚／超临界乙醇条件下杨木屑与甘油共液化研究[J].纤维素科学与技术,2011,19(3):22-27,6.基金项目
国家林业局公益性行业专项经费（200904008,201104046）、中国林科院林业新技术研究所基本科研业务费专项基金（CAFINT2010C04,CAFINT2008C03,CAFYBB2008028）、江苏省自然科学基金（BK2009545）资助项目. （）
