Chemical Absorption of Carbon Dioxide into Aqueous Colloidal Silica Solution with Triethanolamine

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Jae-Wook Lee¹  Sang-Wook Park²  Byoung-Sik Choi²  Kwang-Joong Oh² 

[1] Department of Chemical and Biomolecular Engineering, Sogang University;Division of Chemical Engineering, Pusan National University

关键词: Absorption;    Carbon Dioxide;    Colloidal Silica;    Non-Newtonian Liquid;    Triethanolamine;   

DOI  :  10.1252/jcej.07WE076

来源: Maruzen Company Ltd

【 摘 要 】

References(32)Cited-By(3)Carbon dioxide was absorbed into an aqueous nanometer sized colloidal silica solution of 0–31 wt% and triethanolamine of 0–2 kmol/m3 in a flat-stirred vessel with an impeller size of 0.05 m and speed of 50 rpm at 25°C and 101.3 kPa to measure the absorption rate of CO2. The measured rate of CO2 absorption was compared with the values estimated from the model based on the film theory accompanied by chemical reaction. The volumetric liquid-side mass transfer coefficient (kLaL) of CO2 decreased with increasing silica concentration and was expressed as an empirical correlation formula presenting the relationship between kLaL and the rheological behavior of the aqueous colloidal silica solution. Reduction of the measured kLaL was explained by the viscoelastic properties of the aqueous colloidal silica solution.

【 授权许可】

Unknown