...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Modeling Competitive Adsorption of Mixtures of Volatile Organic Compounds in a Fixed-Bed of Beaded Activated Carbon
【24h】

Modeling Competitive Adsorption of Mixtures of Volatile Organic Compounds in a Fixed-Bed of Beaded Activated Carbon

机译：模拟固定床珠状活性炭中挥发性有机化合物混合物的竞争性吸附

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A two-dimensional mathematical model was developed to study competitive adsorption of n-component mixtures in a fixed-bed adsorber. The model consists of an isotherm equation to predict adsorption equilibria of n-component volatile organic compounds (VOCs) mixture from single component isotherm data, and a dynamic adsorption model, the macroscopic mass, energy and momentum conservation equations, to simulate the competitive adsorption of the it-components onto a fixed-bed of adsorbent The model was validated with experimentally measured data of competitive adsorption of binary and eight-component VOCs mixtures onto beaded activated carbon (BAC). The mean relative absolute error (MRAE) was used to compare the modeled and measured breakthrough profiles as well as the amounts of adsorbates adsorbed. For the binary and eight-component mixtures, the MRAE of the breakthrough profiles was 13 and 12%, respectively, whereas, the MRAE of the adsorbed amounts was 1 and 2%, respectively. These data show that the model provides accurate prediction of competitive adsorption of multicomponent VOCs mixtures and the competitive adsorption isotherm equation is able to accurately predict equilibrium adsorption of VOCs mixtures.
机译：建立了二维数学模型以研究固定床吸附器中n组分混合物的竞争性吸附。该模型包括一个等温方程，该等温方程可根据单组分等温数据预测n组分挥发性有机化合物（VOCs）混合物的吸附平衡，还包括一个动态吸附模型，宏观质量，能量和动量守恒方程，以模拟吸附剂的竞争性吸附。将其组分吸附到固定床吸附剂上该模型已通过实验测量的数据将二元和八组分VOC混合物竞争性吸附到珠状活性炭（BAC）上进行了验证。平均相对绝对误差（MRAE）用于比较建模和测量的穿透曲线以及吸附的吸附物的量。对于二元混合物和八组分混合物，穿透轮廓的MRAE分别为13％和12％，而吸附量的MRAE分别为1％和2％。这些数据表明，该模型可以准确预测多组分VOCs混合物的竞争性吸附，而竞争吸附等温方程可以准确预测VOCs混合物的平衡吸附。

著录项

  • 来源
    《Environmental Science & Technology》 |2014年第9期|5108-5117|共10页
  • 作者

    Dereje Tamiru Tefera; Zaher Hashisho; John H. Philips; James E. Anderson; Mark Nichols;

  • 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;

    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
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号