Isopropyl alcohol vapour removal from diluted gaseous stream by adsorption: Experimental results and dynamic model

摘要

The gas phase adsorption of isopropyl alcohol (IPA) onto a commercial activated carbon at 30°C wasudinvestigated under different operating conditions. Fixed-bed experiments were performed to obtain equilibriumudand kinetic data for IPA adsorption. The equilibrium data were fitted by means of the Langmuir equation andudisotherm parameters were determined. A dynamic, isothermal, dilute solution adsorption model, based on theudlinear driving force (LDF) approximation, was developed to describe the kinetic adsorption behavior. A veryudgood agreement between experimental and model results was found when a LDF mass-transfer-rateudcoefficient dependent on the gas concentration was used.