Kinetic behavior of carbon dioxide absorption in diethanolamine/ionic-liquid emulsions
2013
Hasib-ur-Rahman, Muhammad | Larachi, Faïcal
Room-temperature ionic liquids (RTILs) have been found to induce precipitation of CO₂-captured carbamate product in case of amine–RTIL systems that may lead to an efficient carbon dioxide capture process. Here we have studied the kinetic behavior of CO₂ absorption in (mutually immiscible) DEA–[hmim][Tf₂N] blends in a laboratory scale stirred-cell reactor at ambient pressure (∼1atm) to assess the effects of amine concentration (⩽2M DEA), CO₂ partial pressure, agitation speed (1500–4500rpm), and temperature variation (25–41°C). A CO₂ probe was used to monitor the change in gaseous CO₂ volume ratio during the absorption experiments.
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