Preparation of Microporous Activated Carbon from Raw Coconut Shell by Two-step Procedure

被引：0

作者：

苏伟 ^{[1
]}

周理 ^{[1
]}

周亚平 ^{[2
]}

机构：

[1] Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

[2] Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China

来源：

ChineseJournalofChemicalEngineering | 2006年 / 02期

基金：

中国国家自然科学基金;

关键词：

activated carbon; oxygenation; pore size distribution; microporosity;

D O I：

暂无

中图分类号：

TQ424.1 [活性炭];

学科分类号：

0817 ;

摘要：

A novel two-step procedure was used to manufacture microporous activated carbon from raw co- conut shell. In this process, the raw coconut shell was (1) heated in an inert environment to temperatures be- tween 450℃ and 850℃, and reacted with oxygen ( p O2=1.1-5.3kPa) for some time, and (2) heated again in in- ert environment to activation temperature(850℃) to produce an activated carbon. Activated carbons with specific surface area greater than 700m2·g-1 were manufactured with a yield between 24% and 28%. It was shown that the carbon had a narrow distribution of pore size, possibly less than 1nm, which was calculated by a simple method based on local density function theory.

引用

页码：266 / 269

页数：4