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生物质化学工程 ›› 2012, Vol. 46 ›› Issue (1): 15-18.

• 研究报告 • 上一篇    下一篇

松木粉制备高比表面积炭基固体酸催化剂

张文娟1, 马海龙2,3, 杨亚提2, 张增强2, 高锦明2   

  1. 1. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100;2. 陕西省资源化学与可持续利用工程研究中心; 西北农林科技大学 理学院, 陕西 杨凌 712100;3. 煤转化国家重点实验室; 中国科学院 山西煤炭化学研究所, 山西 太原 030001
  • 收稿日期:2011-08-11 修回日期:1900-01-01 出版日期:2012-01-30 发布日期:2012-01-30
  • 通讯作者: 马海龙

Preparation of a Carbon-based Solid Acid Catalyst with High Specific Surface Area from Pine Wood Powder

ZHANG Wen-juan1, MA Hai-long2,3, YANG Ya-ti2, ZHANG Zeng-qiang2, GAO Jin-ming2   

  1. 1. College of Resources and Environment, Northwest A & F University, Yangling 712100, China;2. Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization; College of Science, Northwest A & F University, Yangling 712100, China;3. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS, Taiyuan 030001, China
  • Received:2011-08-11 Revised:1900-01-01 Online:2012-01-30 Published:2012-01-30
  • Contact: MA Hai-long

摘要: 以一种廉价的农林废弃物——松木粉为原料,首先经过炭化和活化处理,制备活性炭,再通过苯磺酸重氮盐还原法处理活性炭引入磺酸基团(—SO3H),从而制备出具有高比表面积的炭基固体酸催化剂(AC-SO3H)。其比表面积达到 1364 m2/g,磺酸基密度为 1.36 mmol/g。以乙酸的酯化反应考察了炭基固体酸催化剂的催化活性,并与Amberlyst-15、Nafion NR50以及Nafion SAC-13等几种固体酸催化剂进行了比较。实验结果表明,炭基固体酸催化剂的催化活性仅略低于Amberlyst-15,高于Nafion NR50和Nafion SAC-13,炭基固体酸催化剂的成本也远远低于Nafion NR50和Nafion SAC-13。研究结果表明,以松木粉为原料,通过炭化、活化和磺化处理能够得到性能优异且成本低廉的炭基固体酸催化剂。

关键词: 松木粉, 高比表面, 炭基固体酸, 催化剂

Abstract: A sulfonated (SO3H-bearing) Carbon-based solid acid catalyst was prepared from pine wood powder — a cheap forest waste. The catalyst was obtained by the carbonization, activation and sulfonation of pine wood powder. The specific surface area and SO3H density of the carbon catalyst were 1364 m2/g and 1.36 mmol/g, respectively. The catalytic activity of carbon catalyst was investigated on the acetic acid esterification reaction and compared with that of several commercial solid acid catalysts, such as Amberlyst-15, Nafion NR50 and Nafion SAC-13. The results showed that the catalytic activity of carbon catalyst was lower than that of Amberlyst-15, but higher than that of Nafion NR50 and Nafion SAC-13. Its cost is much lower than that of Nafion NR50 and Nafion SAC-13. It also showed that carbon-based solid acid catalyst can be prepared by carbonization, activation and sulfonation of pine wood powder.

Key words: pine wood powder, high specific surface area, carbon-based solid acid, catalyst

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