SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (10): 1685-1690.DOI: 10.1016/j.cjche.2015.08.022

• 能源、资源与环境技术 • 上一篇    下一篇

Experimental investigation of methyl tert-butyl ether dissolution in saturated porous media

Hong Li1,2, Lei Zhao1, Xin Gao1,3, Xingang Li1,3   

  1. 1 School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
    2 Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China;
    3 National Engineering Research Center of Distillation Technology, Tianjin 300072, China
  • 收稿日期:2015-02-07 修回日期:2015-06-08 出版日期:2015-10-28 发布日期:2015-11-27
  • 通讯作者: Xin Gao
  • 基金资助:

    Supported by the National Natural Science Foundation of China (41201497).

Experimental investigation of methyl tert-butyl ether dissolution in saturated porous media

Hong Li1,2, Lei Zhao1, Xin Gao1,3, Xingang Li1,3   

  1. 1 School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
    2 Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China;
    3 National Engineering Research Center of Distillation Technology, Tianjin 300072, China
  • Received:2015-02-07 Revised:2015-06-08 Online:2015-10-28 Published:2015-11-27
  • Supported by:

    Supported by the National Natural Science Foundation of China (41201497).

摘要: This study aims to investigate methyl tert-butyl ether (MTBE) dissolution in saturated porous media. A series of 1D columnexperimentswere conducted in laboratory to obtain MTBE dissolution datawith different groundwater velocity, initial MTBE saturation and grain size of porous medium, and in the presence of other nonaqueous liquids. Results indicate that higher groundwater velocity increases MTBE dissolution rate and higher initial MTBE saturation reduces effective permeability to slow MTBE dissolution rate. Smaller grain size medium gives higher MTBE dissolution rate because of higher permeability. The addition of trichloroethylene enhances MTBE dissolution, with an optimal mass ratio of 10:2, while the presence of p-xylene prolongs complete dissolution of MTBE. Mass transfer correlations are developed for MTBE dissolution rate based on the degree of MTBE saturation Sn. Mass transfer rate is characterized by Re' with a high exponent for 0.3000 b Sn b 0.5482, while it is related to medium grain size and Sn for Sn ≤ 0.3000.

关键词: MTBE, Dissolution, Mass transfer, Porous media, Organic compounds

Abstract: This study aims to investigate methyl tert-butyl ether (MTBE) dissolution in saturated porous media. A series of 1D columnexperimentswere conducted in laboratory to obtain MTBE dissolution datawith different groundwater velocity, initial MTBE saturation and grain size of porous medium, and in the presence of other nonaqueous liquids. Results indicate that higher groundwater velocity increases MTBE dissolution rate and higher initial MTBE saturation reduces effective permeability to slow MTBE dissolution rate. Smaller grain size medium gives higher MTBE dissolution rate because of higher permeability. The addition of trichloroethylene enhances MTBE dissolution, with an optimal mass ratio of 10:2, while the presence of p-xylene prolongs complete dissolution of MTBE. Mass transfer correlations are developed for MTBE dissolution rate based on the degree of MTBE saturation Sn. Mass transfer rate is characterized by Re' with a high exponent for 0.3000 b Sn b 0.5482, while it is related to medium grain size and Sn for Sn ≤ 0.3000.

Key words: MTBE, Dissolution, Mass transfer, Porous media, Organic compounds