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Two-Dimensional Modeling of Volatile Organic Compounds Adsorption onto Beaded Activated Carbon

机译:挥发性有机化合物吸附在珠状活性炭上的二维建模

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摘要

A two-dimensional heterogeneous computational fluid dynamics model was developed and validated to study the mass, heat, and momentum transport in a fixed-bed cylindrical adsorber during the adsorption of volatile organic compounds (VOCs) from a gas stream onto a fixed bed of beaded activated carbon (BAC). Experimental validation tests revealed that the model predicted the breakthrough curves for the studied VOCs (acetone, benzene, toluene, and 1,2,4-trimethyibenzene) as well as the pressure drop and temperature during benzene adsorption with a mean relative absolute error of 2.6, 11.8, and 0.8%, respectively. Effects of varying adsorption process variables such as carrier gas temperature, superficial velocity, VOC loading, particle size, and channelling were investigated. The results obtained from this study are encouraging because they show that the model was able to accurately simulate the transport processes in an adsorber and can potentially be used for enhancing absorber design and operation.
机译:建立并验证了二维非均质计算流体动力学模型,以研究固定床圆柱形吸附器在气流中吸附挥发性有机化合物(VOC)到珠状固定床过程中的质量,热量和动量传输。活性炭(BAC)。实验验证测试表明,该模型预测了所研究的VOC(丙酮,苯,甲苯和1,2,4-三甲基苯)的突破曲线,以及苯吸附过程中的压降和温度,平均相对绝对误差为2.6 ,11.8和0.8%。研究了变化的吸附过程变量的影响,例如载气温度,表观速度,VOC负载,粒径和通道。这项研究获得的结果令人鼓舞,因为它们表明该模型能够准确地模拟吸附器中的传输过程,并有可能用于增强吸收器的设计和操作。

著录项

  • 来源
    《Environmental Science & Technology》 |2013年第20期|11700-11710|共11页
  • 作者单位

    University of Alberta, Department of Civil and Environmental Engineering, Edmonton, AB T6G 2W2, Canada;

    University of Alberta, Department of Civil and Environmental Engineering, Edmonton, AB T6G 2W2, Canada;

    University of Alberta, Department of Civil and Environmental Engineering, Edmonton, AB T6G 2W2, Canada;

    University of Alberta, Department of Civil and Environmental Engineering, Edmonton, AB T6G 2W2, Canada;

    Ford Motor Company, Environmental Quality Office, Dearborn, Michigan 48126, United States;

    Ford Motor Company, Research and Advanced Engineering, Dearborn, Michigan 48121, United States;

    Ford Motor Company, Research and Advanced Engineering, Dearborn, Michigan 48121, United States;

  • 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);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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