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首页> 外文期刊>International journal of hydrogen energy >Kinetics studies of CO2 adsorption and desorption on waste ion-exchange resin-based activated carbon
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Kinetics studies of CO2 adsorption and desorption on waste ion-exchange resin-based activated carbon

机译：废离子交换树脂基活性炭对CO2吸附和解吸的动力学研究

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摘要

This paper is first to investigate the kinetics of CO2 adsorption and desorption on waste ion-exchange resin-based activated carbons by the isothermal thermal analysis method. Not only the application of isothermal thermal analysis is expanded, but also a new method for study the kinetics of CO2 adsorption and desorption is provided in this paper. CO2 adsorption kinetics following Avrami-Erofeev model is A3/2 on chemically activated carbon (CA) and physically activated carbon (PA). The values of activation energy (E) of CA and PA are negative, and the absolute values of activation energy (E) reduce with the increase of CO2 concentration. Desorption kinetics also follow Avrami-Erofeev model, and CA is A3/2 while PA is Al. The values of activation energy are positive, which is opposite to adsorption. CO2 adsorption and desorption processes are similar to the nucleation and growth of the crystal, which starts from a point, then spreads to the surrounding. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译：本文首先利用等温热分析方法研究了废离子交换树脂基活性炭对CO2吸附和解吸的动力学。本文不仅拓展了等温热分析的应用范围，而且为研究CO2的吸附和解吸动力学提供了一种新的方法。遵循Avrami-Erofeev模型的CO2吸附动力学在化学活性炭（CA）和物理活性炭（PA）上为A3 / 2。 CA和PA的活化能（E）值为负，并且活化能（E）的绝对值随CO2浓度的增加而降低。解吸动力学也遵循Avrami-Erofeev模型，CA为A3 / 2，而PA为Al。活化能的值为正，这与吸附相反。 CO 2的吸附和解吸过程类似于晶体的成核和生长，该过程从一个点开始，然后扩散到周围。 （C）2017氢能出版物有限公司。由Elsevier Ltd.出版。保留所有权利。

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  • 来源
    《International journal of hydrogen energy》 |2017年第44期|27122-27129|共8页
  • 作者

    Wei Mengqi; Yu Qingbo; Xie Huaqing; Zuo Zongliang; Hou Limin; Yang Fan;

  • 作者单位

    Northeastern Univ, Sch Met, 11,Lane 3,Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Met, 11,Lane 3,Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Met, 11,Lane 3,Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Met, 11,Lane 3,Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Met, 11,Lane 3,Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Met, 11,Lane 3,Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CO2 adsorption; Desorption; Kinetics; Isothermal thermal analysis; Activation energy;

    机译：CO2吸附解吸运动学等温热分析活化能;

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