Synthesis and Characterization of Bed Adsorbent from Coconut Shell for Separation of CO2 from Natural Gas

Biomass wastes are considered as sustainable carbon precursor which can be
used in synthesizing activated carbon. A series of activated carbon will be prepared by
using biomass waste which is coconut shell. This activated carbon will be activated
thermally and chemically. All the activated carbon samples will be activated
chemically using chemical reagent sodium hydroxide (NaOH). Different concentration
and loading of the chemical will be used in activation as well as different retention
time in order to observe and determine the optimum activation condition for better
adsorption performance. It is found out that mass ratio of 2:1 shows the highest CO2
adsorption capacity which is 1.5253mmol/g. Porosity of the activated carbon increases
with the increasing mass ratio and increasing activation temperature.