Chemical Absorption of Carbon Dioxide into Aqueous Colloidal Silica Solution with Triethanolamine
| Autor: | Jae Wook Lee, Byoung-Sik Choi, Sang-Wook Park, Kwang-Joong Oh |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Mass transfer coefficient
Diethanolamine Aqueous solution Materials science General Chemical Engineering Colloidal silica Inorganic chemistry General Chemistry Chemical reaction chemistry.chemical_compound chemistry Chemical engineering Triethanolamine medicine Nanometre Absorption (chemistry) medicine.drug |
| Zdroj: | JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 41:540-546 |
| ISSN: | 1881-1299 0021-9592 |
| DOI: | 10.1252/jcej.07we076 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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