modification of activated carbon adsorbent by potassium hydroxide solution to enhance co2 adsorption capacity

Activated carbon is one of the low-cost adsorbents for gas adsorption# in this study, activated carbon adsorbent was modified with a potassium hydroxide solution to enhance carbon dioxide adsorption capacity# the adsorption results showed that adsorbent modification is increased the carbon dioxide absorption by 40%# in the adsorption experiments, the effects of various operating parameters such as hydroxide solution concentration, temperature and pressure on the adsorption process were investigated# the optimal amount of potassium hydroxide solution in the modification of activated carbon adsorbent is considered# the results of adsorption experiments indicated that by decreasing the temperature and increasing the pressure, carbon dioxide adsorption capacity increased