• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Adsorptive desulfurization of dibenzothiophene over lignin-derived biochar by one-step modification with potassium hydrogen phthalate
【24h】

Adsorptive desulfurization of dibenzothiophene over lignin-derived biochar by one-step modification with potassium hydrogen phthalate

机译：用邻苯二甲酸钾的一步改性，通过单步改性进行木质素衍生的生物炭的吸附脱硫

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel and efficient porous biochar was produced from alkali lignin via a synchronous carbonization/activation process and applied for the adsorption desulfurization of dibenzothiophene (DBT) at ambient temperature. Potassium hydrogen phthalate (KHP) was used as the activator for the first time, with the advantages of the autocatalytic activity of K+ for pore-creation, natural acidity for acid-catalyzed decomposition and surface oxidative modification of the lignin-derived biochar. The highest adsorption efficiency and adsorption capacity of DBT achieved were 98.8% and 33.8 mg S g(-1), respectively, with the char yield up to 40 wt%. Analytical techniques such as BET, SEM, FTIR, TG/DTG and Boehm titration were employed and demonstrated that KHP was a promising activator for the highly porous structure and rich surface acidity of biochar. The isotherm data could be well described by the Langmuir model. Finally, the biochar could be regenerated 5 times with over 90% char yield and retain a high adsorption capacity of 29.2 mg S g(-1).
机译：通过同步碳化/活化方法从碱木质素生产一种新颖的和有效的多孔生物炭，并在环境温度下施加了二苯并噻吩（DBT）的吸附脱硫。使用邻苯二甲酸氢酸钾（KHP）作为活化剂首次使用，具有K +的自高催化活性的优点，用于孔催化的酸催化分解的天然酸度和木质素衍生的生物炭的表面氧化改性。达到的最高吸附效率和吸附能力分别为98.8％和33.8mg S g（-1），炭产品高达40重量％。使用诸如BET，SEM，FTIR，TG / DTG和BOEHM滴定的分析技术，并证明了KHP是一种有望的活化剂，用于高度多孔结构和生物炭的富有表面酸度。等温数据可以通过Langmuir模型很好地描述。最后，生物炭可以再生5次，超过90％的炭产量，并保留高吸附容量为29.2mg S g（-1）。

著录项

  • 来源
    《RSC Advances》 |2016年第102期|共9页
  • 作者

    Li Jing-jing; Zhang Hao; Tang Xiao-dong; Lu Hai;

  • 作者单位

    Southwest Petr Univ Coll Chem &

    Chem Engn Chengdu 610500 Peoples R China;

    Southwest Petr Univ Coll Chem &

    Chem Engn Chengdu 610500 Peoples R China;

    Southwest Petr Univ Coll Chem &

    Chem Engn Chengdu 610500 Peoples R China;

    Southwest Petr Univ Coll Chem &

    Chem Engn Chengdu 610500 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号