The preparation and performance of lignin-based activated carbon fiber adsorbents for treating gaseous streams
The preparation and performance of lignin-based activated carbon fiber adsorbents for treating gaseous streams作者机构：Key Laboratory of Energy Thermal Conversion and Control (Ministry of Education) School of Energy and Environment Southeast University Nanjing 210096 China State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental Engineering East China University of Science and Technology Shanghai 200237 China Brook Byers Institute for Sustainable System School of Civil and Environmental Engineering Georgia Institute of Technology Atlanta GA 30332-0595 USA
出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)
年 卷 期：2017年第11卷第3期
页 面：328-337页
核心收录：
学科分类：07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学]
基 金：国家自然科学基金 support of Jiangsu Province Environmental Protection Foundation the Industry, Education, and Research Prospective Project of Jiangsu Province 国家教育部霍英东教育基金 supported by the Brook Byers Institute for Sustainable Systems, Hightower Chair the Georgia Research Alliance at the Georgia Institute of Technology.
主 题：lignin carbon fiber electrospinning toluene humidity
摘 要：Two types of lignin-based carbon fibers were prepared by electrospinning method. The first was activated with Fe304 （LCF-Fe）, and the second was not activated with Fe3O4 （LCF）. Gas phase adsorption isotherms for toluene on LCF-Fe and LCF were studied. The gas phase adsorption isotherm for 0% RH showed LCF-Fe have about 439 mg/g adsorption capacity which was close to that of commercially available activated carbon （500 rag/g）. The Dubinin-Radushkevich equation described the isotherm data very well. Competitive adsorption isotherms between water vapor and toluene were measured for their RH from 0 to 80%. The effect of humidity on toluene gas-phase adsorption was predicted by using the Okazaki et al. model. In addition, a constant pattern homogeneous surface diffusion model （CPHSDM） was used to predict the toluene breakthrough curve of continuous flow-packed columns containing LCF-Fe, and its capacity was 412 mg/g. Our study, which included material characterization, adsorption isotherms, kinetics, the impact of humidity and fixed bed performance modeling, demonstrated the suitability of lignin-based carbon fiber for volatile organic compound removal from gas streams .
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