Indonesia Conference Directory

This study aims to determine the CO_2 adsorption capacity of activated carbon doped with nitrogen-doped. Activated carbon is carbonized from biomass empty fruit bunches (EFB). The results of lignocellulose analysis of EFB, 42.87 wt% of hemicellulose, 27.31 wt% of lignin, 26.42 wt% of cellulose and 3.40 wt% of ash indicate the characteristics of activated carbon. Potassium hydroxide is used as an activating agent and urea as a nitrogen precursor with a mass ratio, activated carbon: urea = 1: 3 (ACP13). The modified activated carbon was characterized by Fourier-Transform Infrared (FTIR) and X-ray diffraction (XRD). The results show that activated carbon has low crystallinity and graphitization due to the activation effect of potassium hydroxide and doping nitrogen from urea. The adsorption of CO_2 on ACP13 and pristine activated carbon was performed using the gravimetric method at 30 °C and 1 bar. Results showed that the CO_2 adsorption capacity was 17.76 wt% and 8.34 wt% for ACP13 and pristine activated carbon, respectively. The adsorption process of CO_2 at 30 °C follow the pseudo-second order.