磷酸活化碱木糖渣制备高吸附性能活性炭

邓先伦; 朱光真; 张燕萍; 李萍; 侯敏; 梁芳敏; 孙康; 郭昊

doi:10.3969/j.issn.0253-2417.2015.05.021

磷酸活化碱木糖渣制备高吸附性能活性炭

邓先伦^1,2, ,,
朱光真^1,2,
张燕萍²,
李萍²,
侯敏^1,2,
梁芳敏²,
孙康^1,2,
郭昊²

1. 中国林业科学研究院林业新科技研究所, 北京 100091;
2. 中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室; 江苏省生物质能源与材料重点实验室, 江苏南京 210042

详细信息

通讯作者:
邓先伦(1956—),男,研究员,硕士生导师,主要从事活性炭研究与开发工作,E-mail:dengxianlun_483@163.com

中图分类号: TQ35;TQ424
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出版历程
- 收稿日期: 2014-07-01
- 发布日期: 2015-10-27

Preparation of Activated Carbon from Alkali Xylose Residue by Phosphoric Acid Activation

1. Research Institute of Forestry New Technology, CAF, Beijing 100091, China;
2. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.of Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China

摘要

摘要: 以碱木糖渣为原料,磷酸为活化剂,经预处理后活化,制备高吸附性能活性炭。考察了不同条件对活性炭吸附性能的影响,并结合N2吸附-脱附等温线对其孔结构进行表征。结果表明,当浸渍比为2.0:1,预处理温度和时间分别为270 ℃和60 min,活化温度和时间分别为400 ℃和90 min时,制得的活性炭得率为36.36%,亚甲基蓝吸附值360 mg/g,碘吸附值1 142 mg/g,焦糖脱色率120%,比表面积1 850.6 m2/g,总孔容积1.48 cm3/g,中孔孔容0.81 cm3/g,平均孔径3.2 nm。
- 碱木糖渣 /
- 活性炭 /
- 制备 /
- 吸附性能
Abstract: Activated carbon with high adsorption performance was prepared from alkali xylose residue by phosphoric acid activation after pretreatment. The effect of different conditions on the adsorption properties of activated carbon was studied and the pore structure was characterized by N2 adsorption-desorption isotherm. The results showed that the optimum conditions for raw material was pre-activated at 270 ℃ for 60 min and then the activated carbon was prepared at the impregnated ratio 2.0:1(mass ratio), activation temperature 400 ℃, and activation duration 90 min.Under these conditions, activated carbon had the yield of 36.36%, methylene blue value 360 mg/g, iodine value 1 142 mg/g, rate of caramel decolorization 120%, specific surface area 1 850.6 m2/g, total pore volume 1.48 cm3/g, mesopores volume 0.81 cm3/g and average pore diameter 3.2 nm.
- alkali xylose residue /
- activated carbon /
- preparation /
- adsorption performance

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参考文献(21)

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