Carbon monoliths: A comparison with granular materials

被引:56
作者
Crittenden, B [1 ]
Patton, A
Jouin, C
Perera, S
Tennison, S
Echevarria, JAB
机构
[1] Univ Bath, Dept Chem Engn, Bath BA2 7AY, Avon, England
[2] MAST Carbon Ltd, Surrey GU3 2AF, England
[3] Univ Rey Juan Carlos, Dept Chem Environm & Mat Technol, Madrid, Spain
来源
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY | 2005年 / 11卷 / Suppl 1期
基金
英国工程与自然科学研究理事会;
关键词
monoliths; activated carbon; volatile organic compounds; linear driving force;
D O I
10.1007/s10450-005-5981-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
An activated carbon monolith synthesized from a phenolic resin precursor provides capacity and kinetic properties which compare most favourably with the same mass of its granular counterpart. Experimental data have been obtained using a dynamic, flow apparatus. The comparative performances are readily explained by an analysis of internal and external mass transfer coefficients. The effect of axial dispersion is neglected. Internal mass transfer coefficients are based on the linear driving force assumption, being approximated for the monolith by a geometric transformation from the square channel to a hollow cylinder impervious to mass at its outer radius. The monolith is predicted to have a pressure drop which is less than 6% of that of its equivalent granular system.
引用
收藏
页码:537 / 541
页数:5
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