| 微波助［Bmim］Br离子液体中玉米秸秆稀硫酸水解糖化 |
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| 引用本文： | 柴连周,张桂琴,毕先钧. 微波助［Bmim］Br离子液体中玉米秸秆稀硫酸水解糖化[J]. 农业工程, 2012, 2(5): 21-26 |
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| 作者姓名： | 柴连周 张桂琴 毕先钧 |
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| 作者单位： | 云南师范大学化学化工学院 |
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| 基金项目： | 国家自然科学基金资助项目(项目编号:20663007) |
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| 摘 要： | 以玉米秸秆为原料,在[Bmim]Br离子液体中,以稀硫酸为催化剂,用微波辐射加热辅助纤维素的水解;探索硫酸的质量分数、微波辐射功率、微波辐射时间、微波辐射温度及离子液体用量等因素对还原糖收率的影响。结果表明:在硫酸质量分数为10%,离子液体[Bmim]Br的用量为10.0mL,微波辐射功率为600W,辐射温度为85℃,辐射时间为60min的条件下,还原糖收率达到极大值22.46%;与油浴加热方法相比较,采用微波辐射加热能够显著提高还原糖收率;并且在[Bmim]Br离子液体介质中,微波辐射加热促进玉米秸秆稀酸水解所得到的还原糖收率均比在[Bmim]Cl或[Amim]Cl离子液体介质中的要高。
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| 关 键 词： | 离子液体 微波辐射 玉米秸秆 稀酸水解 糖化 |
Microwave-assisted Dilute Acid Hydrolysis of Corn Straw into Reducing Sugar in Ionic Liquid [Bmim]Br |
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| Chai Lianzhou,Zhang Guiqin and Bi Xianjun. Microwave-assisted Dilute Acid Hydrolysis of Corn Straw into Reducing Sugar in Ionic Liquid [Bmim]Br[J]. Agricultural Engineering, 2012, 2(5): 21-26 |
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| Authors: | Chai Lianzhou Zhang Guiqin Bi Xianjun |
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| Affiliation: | (Institute of Chemistry and Chemical Engineering,Yunnan Normal University,Kunming 650500,China) |
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| Abstract: | Effects of ionic liquid volume,sulfuric acid amount,microwave irradiation time,microwave irradiation temperature,microwave irradiation power on dilute acid hydrolyzed saccharification of corn straw in ionic liquid [Bmim]Br by microwave irradiation were investigated.Results indicated that the best conditions of acid hydrolysis were as follows:sulfuric acid amount 10.0%,ionic liquid volume 10.0 mL,microwave irradiation power 600 W,microwave irradiation temperature 85℃,microwave irradiation time 60 min,and the yield ratio of reducing sugar could reach 22.46% obviously higher than yield ratio of reducing sugar not only by traditional dilute acid hydrolysis but also by microwave irradiation heating in [Amim]Cl or [Bmim]Cl ionic liquid. |
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| Keywords: | Ionic liquid Microwave irradiation Corn straw Dilute acid hydrolysis Saccharificatio |
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