Hydrolysis of cellulose into reducing sugar via hot-compressed ethanol/water mixture
Hydrolysis of cellulose into reducing sugar via hot-compressed ethanol/water mixture
复制标题
通过热压缩乙醇/水混合物将纤维素水解成还原糖
DOI：
10.1016/j.biombioe.2012.03.004
复制
发表时间：
2012-07
影响因子：
6
通讯作者：
王存文
中科院分区：
文献类型：
--
作者：
王存文
热压乙醇/水水解纤维素是制备生物燃料用还原糖的有效途径。本研究的目的是获得高RS产量。研究了间歇热压乙醇/水混合液水解微晶纤维素的工艺条件。进一步考察了乙醇/水混合物密度与温度和压力对RS产率的影响。对水解条件进行了优化，得到了较高的糖得率，并对水解残渣和原纤维素的结晶度进行了分析。在乙醇摩尔分数为0.22、反应温度为260 °C、反应压力为5.75 MPa、反应时间为35 s、搅拌速度为10 Hz的条件下，RS的产率高达98.22%。纤维素的红外结晶度指数从0.618下降到0.211。结果表明，纤维素在热压乙醇/水混合溶剂中水解可有效地制备RS。
Hydrolysis of cellulose by hot-compressed ethanol/water mixture is a promising way to obtain reducing sugar (RS) for biofuel production. The purpose of this research is to obtain high RS yield. In this work, the hydrolysis of microcrystalline cellulose by batch hot-compressed ethanol/water mixture was investigated. The influence of the ethanol/water mixture density corresponding to temperature and pressure on the RS yield was further examined. The hydrolysis conditions were optimized for high sugar yield and the crystallinity indexes (CI) of the residue and the original cellulose were analyzed. The RS yield reached as high as 98.22% under the conditions of ethanol mole fraction of 0.22, temperature of 260 °C, pressure of 5.75 MPa, reaction time of 35 s, and stirring speed of 10 Hz. The IR crystallinity index of cellulose was decreased to 0.211 from 0.618. It is shown that the RS can be produced effectively by cellulose hydrolysis in hot-compressed ethanol/water mixture.
登录
查看更多内容
影响因子：
4.2
作者：
Sasaki, M;Fang, Z;Arai, K
通讯作者：
Arai, K
影响因子：
6
作者：
Lu, Xin;Saka, Shiro
通讯作者：
Saka, Shiro
影响因子：
11.4
作者：
Sakaki, T;Shibata, M;Hayashi, N
通讯作者：
Hayashi, N
DOI：
10.1007/bfb0007859
发表时间：
1989-12
期刊：
Lignocellulosic Materials
影响因子：
--
作者：
F. Parisi
通讯作者：
F. Parisi
影响因子：
5.7
作者：
Saka, S;Ueno, T
通讯作者：
Ueno, T