CO2 CAPTURE THROUGH HIGHLY MICROPOROUS ACTIVATED CARBON USING A FOREST RESIDUE AS A PRECURSOR

GOMEZ DELGADO EDWARD; NUNELL, GISEL; CUKIERMAN, ANA LEA; BONELLI, PABLO

Beijing

Conferencia; The International Conference on Combustion and Energy Utilization (ICCEU); 2023

Beijing Society of Thermophysics and Energy Engineering, China and School of Astronautics, Beihang University, China

Global warming generated by the increase in CO2 concentration in the atmosphere harms the different ecosystems. The main source of CO2 emissions is related to the use of fossil fuels. Adsorption onto activated carbons (ACs) appears as an attractive option for the capture and storage of CO2. In this work, ACs were obtained from sawdust of an invasive species (Prosopis ruscifolia) through a chemical activation process using KOH solution as porogen. Two KOH/carbonized precursor impregnation ratios (IR=1 and 3) at 973 K, under otherwise pre-established conditions, were used. The resulting ACs were labelled as CV-1 and CV-3, respectively. The IR incidence on their main chemical and textural characteristics was analyzed. Their CO2 adsorption capacity was evaluated by gravimetric and dynamic tests carried out at 303 K. Although both ACs evidenced the presence of narrow micropores (