小麦秸秆浓氢氟酸水解的研究

Study of Wheat Straw Hydrolyzed by Concentrated Hydrofluoric Acid

初步探讨了利用浓氢氟酸对小麦秸秆水解的影响因素。氢氟酸浓度、水解温度、水解时间、秸秆粉粒度等对还原糖得率及原料水解率都有一定影响。在浓氢氟酸浓度为30％，水解温度70℃，水解时间2h，秸秆粉粒度40-60目，固形物含量5％的水解条件下，还原糖得率为27．84％，原料水解率为57．37％。

The influential factors of hydrolyzing the wheat straw by hydrofluoric acid were studied including the concentration of hydrofluoric acid, hydrolyzing temperature,hydrolyzing time,the granularity of the wheat straw. The reducing sugar yield reached 27.84 %, at the following conditions： concentration（HF） = 30%, the hydrolyzing temperature 70℃, hydrolyzing time 2 h, the granularity 40-60 mesh and the solid content on more than 5%.