Adsorptive removal of sulfur dioxide by Saskatchewan lignite and its derivatives

被引：11

作者：

Chattopadhyaya, Goutam ^{[1
]}

Macdonald, Douglas G. ^{[1
]}

Bakhshi, Narendra N. ^{[1
]}

Mohammadzadeh, Jafar S. Soltan ^{[1
]}

Dalai, Ajay K. ^{[1
]}

机构：

[1] Univ Saskatchewan, Dept Chem Engn, Catalysis & Chem React Engn Labs, Saskatoon, SK S7N 5A9, Canada

来源：

FUEL | 2006年 / 85卷 / 12-13期

关键词：

activated carbon; SO2; adsorption; Saskatchewan lignite;

D O I：

10.1016/j.fuel.2006.01.017

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A non-equilibrium method using fixed bed microreactor was used to measure SO, adsorption characteristics of chars and activated carbons derived from Saskatchewan lignite. SO2 breakthrough times and profiles were measured using lignite at a variety of temperatures, particle sizes and SO2 concentrations of 75-175 degrees C; 2-5.6 mm and 1000-5000 ppm, respectively. Adsorption was found to be a strong function of residence time and feed SO2 concentration, a moderate function of particle size and a weak function of temperature. There was a marginal difference in the adsorption capacity between lignite (15 mg SO2/g lignite) and the char obtained from the same starting amount of lignite (26 mg SO2/g char, or 17 mg SO2/g original lignite). Activation of lignite with steam resulted in an activated carbon, which had highest adsorption capacity of 93 mg SO2/g activated carbon. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1803 / 1810

页数：8

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