Abstract
The CO2 desorption kinetics of waste ion-exchange resin-based activated carbons was analyzed by model-fitting and model-free approaches using thermogravimetric analysis. A non-isothermal method was applied in the temperature range of 303–393K with different heating rates. The experiments were performed under two different inlet CO2 concentrations. The experimental results showed that the extent of conversion of desorption is independent of inlet CO2 concentration during the adsorption process. At the range of 0.2≤α≤0.7, CO2 desorption on chemically activated carbon is complex, while physically activated carbon is simple. The kinetic models comply with Avrami-Eroféev models. The obtained artificial isokinetic temperatures lie in the region of the experimental temperatures, indicating that the reaction model for conversion 0.2 ≤ α ≤ 0.7 remains a proper choice. On the basis of the experimental results, the thermal analysis method can be used successfully in projecting CO2 desorption.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
