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林产化学与工业 ›› 2015, Vol. 35 ›› Issue (5): 129-134.doi: 10.3969/j.issn.0253-2417.2015.05.021

• 研究报告 • 上一篇    下一篇

磷酸活化碱木糖渣制备高吸附性能活性炭

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

  1. 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
  • 收稿日期:2014-07-02 出版日期:2015-10-25 发布日期:2015-10-24
  • 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 E-mail:dengxianlun_483@163.com
  • 作者简介:侯 敏(1988—),女,山东潍坊人,硕士生,研究方向为碳质吸附材料;E-mail:1106548832@qq.com
  • 基金资助:
    中国林科院林业新技术所基本科研业务费专项资金(CAFINT2013C02)

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

HOU Min1,2, DENG Xian-lun1,2, ZHU Guang-zhen1,2, SUN Kang1,2, GUO Hao2, ZHANG Yan-ping2, LI Ping2, LIANG Fang-min2   

  1. 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
  • Received:2014-07-02 Online:2015-10-25 Published:2015-10-24

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。

关键词: 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.

Key words: alkali xylose residue, activated carbon, preparation, adsorption performance

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