Gas-Liquid Mass Transfer Characteristics in a Gas-Liquid-Solid Bubble Column under Elevated Pressure and Temperature

doi:10.1016/j.cjche.2014.06.019

›› 2014, Vol. 22 ›› Issue (9): 955-961.DOI: 10.1016/j.cjche.2014.06.019

• 流体力学与传递现象 • 下一篇

Gas-Liquid Mass Transfer Characteristics in a Gas-Liquid-Solid Bubble Column under Elevated Pressure and Temperature

Haibo Jin¹, Suohe Yang¹, Guangxiang He¹, Delin Liu¹, Zemin Tong¹, Jianhua Zhu²

1 Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;
2 Faculty of Chemical Science and Engineering, China University of Petroleum, Beijing 102249, China

收稿日期:2012-11-01 修回日期:2013-09-20 出版日期:2014-09-28 发布日期:2014-11-04
通讯作者: Haibo Jin
基金资助:
Supported by the National Natural Science Foundation of China (20776018), and the Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions (CIT&TCD20130325).

Gas-Liquid Mass Transfer Characteristics in a Gas-Liquid-Solid Bubble Column under Elevated Pressure and Temperature

Haibo Jin¹, Suohe Yang¹, Guangxiang He¹, Delin Liu¹, Zemin Tong¹, Jianhua Zhu²

1 Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;
2 Faculty of Chemical Science and Engineering, China University of Petroleum, Beijing 102249, China

Received:2012-11-01 Revised:2013-09-20 Online:2014-09-28 Published:2014-11-04
Supported by:
Supported by the National Natural Science Foundation of China (20776018), and the Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions (CIT&TCD20130325).

摘要/Abstract

摘要： The volumetricmass transfer coefficient k_La of gases (H₂, CO, CO₂) and mass transfer coefficient k_L on liquid paraffin side were studied using the dynamic absorption method in slurry bubble column reactors under elevated temperature and elevated pressure. Meanwhile, gas-holdup and gas-liquid interfacial area a were obtained. The effects of temperature, pressure, superficial gas velocity and solid concentration on themass transfer coefficient were discussed. Experimental results show that the gas-liquid volumetric mass transfer coefficient k_La and interfacial area a increasedwith the increase of pressure, temperature, and superficial gas velocity, and decreased with the slurry concentration. The mass transfer coefficient k_L increased with increasing superficial gas velocity and temperature and decreased with higher slurry concentration, while it changed slightly with pressure. According to analysis of experimental data, an empirical correlation is obtained to calculate the values of k_La for H₂ (CO, CO₂) in the gas-paraffin-quartz system in a bubble column under elevated temperature and elevated pressure.

关键词: Mass transfer characteristic, Bubble column, Elevated pressure, Elevated temperature

Abstract: The volumetricmass transfer coefficient k_La of gases (H₂, CO, CO₂) and mass transfer coefficient k_L on liquid paraffin side were studied using the dynamic absorption method in slurry bubble column reactors under elevated temperature and elevated pressure. Meanwhile, gas-holdup and gas-liquid interfacial area a were obtained. The effects of temperature, pressure, superficial gas velocity and solid concentration on themass transfer coefficient were discussed. Experimental results show that the gas-liquid volumetric mass transfer coefficient k_La and interfacial area a increasedwith the increase of pressure, temperature, and superficial gas velocity, and decreased with the slurry concentration. The mass transfer coefficient k_L increased with increasing superficial gas velocity and temperature and decreased with higher slurry concentration, while it changed slightly with pressure. According to analysis of experimental data, an empirical correlation is obtained to calculate the values of k_La for H₂ (CO, CO₂) in the gas-paraffin-quartz system in a bubble column under elevated temperature and elevated pressure.

Key words: Mass transfer characteristic, Bubble column, Elevated pressure, Elevated temperature

Haibo Jin, Suohe Yang, Guangxiang He, Delin Liu, Zemin Tong, Jianhua Zhu. Gas-Liquid Mass Transfer Characteristics in a Gas-Liquid-Solid Bubble Column under Elevated Pressure and Temperature[J]. , 2014, 22(9): 955-961.

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Gas-Liquid Mass Transfer Characteristics in a Gas-Liquid-Solid Bubble Column under Elevated Pressure and Temperature

Gas-Liquid Mass Transfer Characteristics in a Gas-Liquid-Solid Bubble Column under Elevated Pressure and Temperature

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