期刊论文

中文

化工新型材料

1006-3536

2011

39

1

110-112

10.3969/j.issn.1006-3536.2011.01.036

湖南省教育厅科技项目

本校为其他机构

以玉米秸杆为原料,采用纤维素酶进行预处理,然后发酵制备燃料乙醇.探讨了预处理温度,时间,酶解液用量及原料粒度对乙醇得率的影响.采用响应面法建立二次回归模型,并对预处理工艺进行了优化.研究结果表明:预处理能有效的促进玉米秸杆的降解,提高乙醇的得率.在当预处理温度为55.7℃,预处理时间为10.47h,酶解液用量为30.5U/g,原料粒度为80目时,乙醇的得率比相同条件下未进行纤维素酶预处理的试样提高了32.17%

Fuel ethanol was made from corn stalk with cellulase pretreatment and fermentation. The effects of pretreatment temperature, time, particle size of corn stalk and dosage of cellulase on the ethanol yield were discussed. The pretreatment process was optimized and analyzed with response surface methodology, and quadratic regression model was founded. The results showed that cellulase pretreatment could promote corn stalk degradation and increased fuel ethanol yield. The ethanol yield increased 32. 21% compared with the sample which had not pretre...