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›› 2010, Vol. 10 ›› Issue (4): 696-700.

• 反应与分离 • 上一篇    下一篇

振动筛板鼓泡塔中NaCO3-CO2-H2O体系的反应速率

安钢 安以弘 孙波 钱美华 许庆   

  1. 天津理工大学化学化工学院 天津理工大学化学化工学院 天津理工大学化学化工学院 天津理工大学化学化工学院 天津理工大学化学化工学院
  • 收稿日期:2010-03-22 修回日期:2010-06-09 出版日期:2010-08-20 发布日期:2010-08-20
  • 通讯作者: 安钢

Reaction Rate of NaCO3-CO2-H2O System in Bubbling Column with Reciprocating Plate

AN Gang SUN Bo AN Yi-hong QIAN Mei-hua XU Qing   

  1. School of Chemical and Chemical Engineering, Tianjin University of Technology School of Chemical and Chemical Engineering, Tianjin University of Technology School of Chemical and Chemical Engineering, Tianjin University of Technology School of Chemical and Chemical Engineering, Tianjin University of Technology School of Chemical and Chemical Engineering, Tianjin University of Technology
  • Received:2010-03-22 Revised:2010-06-09 Online:2010-08-20 Published:2010-08-20
  • Contact: AN Gang

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摘要： 研究了不同CO2流量、筛板振幅、筛板振动频率下，反应时间对振动筛板鼓泡塔中NaCO3-CO2-H2O体系的NaHCO3浓度和NaHCO3生成速率的影响，测定了振动筛板鼓泡塔、鼓泡塔和筛板鼓泡塔在相同条件下的反应速率. 结果表明，在振动筛板鼓泡塔中反应20~25 min时，CO2高流量与低流量下的NaHCO3浓度比为1.39. 反应进行5 min时，NaHCO3生成速率在筛板振幅为0.5 cm时是1.5 cm时的1.76倍，振动频率为120 min-1时是60 min-1时的1.46倍. 振动筛板鼓泡塔比筛板鼓泡塔节省反应时间10%，比鼓泡塔省时26%.

关键词: 振动筛板鼓泡塔, 振幅, 振动频率, NaCO3-CO2-H2O系

Abstract: The reaction behavior of NaCO3-CO2-H2O system in bubbling column with reciprocating plates was investigated. The effects of reaction time on the concentration of sodium bicarbonate and NaHCO3 generating rate at different volumetric flow rates of CO2 gas, vibration amplitudes of sieve plates and vibration frequencies of sieve plates were discussed, and the reaction rates in the reciprocating plate column, bubbling column and sieve plate bubbling column were experimentally determined at the same conditions. The results show that the concentration of sodium bicarbonate obtained at a high volumetric rate of CO2 is about 1.39 times of that at a low one when the reaction proceeds for 20~25 min in the reciprocating plate column, NaHCO3 generating rate at a vibration amplitude of 0.5 cm is 1.76 times of that at 1.5 cm while the reaction has been carried out for 5 min, and NaHCO3 generating rate at a frequency amplitude of 120 min-1 is 1.46 times of that at 60 min-1. Compared with the sieve plate bubbl

Key words: reciprocating plate column, amplitude of vibration, frequency of vibration, NaCO3-CO2-H2O system

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