纤维素降解及产氢影响因素的分析

Study on degradation of cellulose and analysis of the influence factor on the degradation

试验研究了纤维素的降解过程及其糖化液的产氢情况。试验结果表明,影响纤维素降解的因素的主次顺序:酸的质量分数>降解温度>降解时间。以降解后的纤维素作为R3的营养底物时,R3的产氢效能并不是很理想,在乙酸质量分数为20%、降解温度为70℃、降解时间为1.5h,盐酸质量分数为20%、降解温度为70℃、降解时间为1h的条件下,氢气产量均达到最大值(20ml)。虽然氢气总产量不高,但是研究结果表明,纤维素糖化液仍有产氢潜力,有必要作进一步的研究。

This thesis studied the hydrogen production with degradated cellulose. First, we intro- duced the progress of cellulose, the result showed that, the factors which affected the cellulose degradation are as under： concentration of acid 〉degradation time 〉degradation. The maximum total hydrogen production gets 20 ml when the concentration of soul was 20%, degradation time at 1.5 h, degradation temperature at 70 ℃. The results showed that, although the total hydrogen production was low, the cellulose degradation still has some further potential capability of hydrogen production.