Abstract
Calcium Looping Process (CLP) is one of the carbon capturing technology, in which the sorbent material, CaO is absorbing CO2 from flue gases in power plant. However, good sorbent material have been facing several drawbacks such as low generability, and low absorption capacity. Acid treatment can improve the physical properties such as surface area of the sorbent material. This study was aim to synthesize and investigate the effect of acid treatment on the limestone as sorbent material using mixing method in order to maximize the CO2 carrying capacity. The amount of 0 ml, 2 ml, 4 ml, 6 ml, 8 ml and 10 ml of oxalic acid were varied in this study. The result demonstrated that 6 ml of oxalic acid produces highest hardness and high surface area and pore volume size, which favorable to be used as sorbent material in CLP process.
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