Electroactive and renewable carbonaceous materials for CO2 capture in adsorption/direct heating desorption cycles.

ARAOZ, MARÍA E.; MARCIAL, ADRIAN FACUNDO; TREJO GONZÁLEZ, JOSÉ A.; A. M. AVILA

Edmonton

Exposici�n; International Adsorption Society - Twitter Posters; 2021

International Adsorption Society - Graduate Students

The globe is in a transition from a linear to a circular economy, which requires innovation on how materials and energy are transformed. In this sense, separation and purification processes have a key role. In particular, the agroindustrial segment needs to maximize the exploitation of biomass residues and to capture and transformed greenhouse gases. The aim of this work is to demonstrate that tubular carbonaceous materials with electric properties obtained from sugarcane harvest residues could be utilized as CO2 separation agents.The electric conductivity of these materials was evaluated by applying different voltages between the tube ends. The temperature of the tubular element had a non-linear increase when a growing potential was applied, reaching 523K in just seconds at 10V. The material was tested in continuous adsorption/direct heating desorption cycles, with a feed of 14% CO2/N2 gas mixture. A peak was observed in the CO2 concentration during high temperature desorption respect to the desorption at room conditions. It was possible to control the temperature of the tubular material in adsorption/desorption cycles by controlling the applied voltage. Finally, the material was evaluated in consecutive adsorption/direct heating desorption cycles.