Journal of Chemical Engineering & Process Technology
Open Access

Abstract

Adsorption of Carbon Dioxide on Adsorbents Synthesized by Microwave Technique

Sailee Dhage S and Kavita Kulkarni S

Batch adsorption studies were carried out for carbon dioxide adsorption on Tea Powder waste, microwave synthesized tea powder waste, microwave synthesized tea powder waste with 80 gram KOH solution, microwave synthesized tea powder waste with 300 gram KOH solution and a commercial activated carbon. Adsorption studies were carried out using these four adsorbents. The experiments were conducted in a batch reactor with various pressures i.e., 3, 4 and 5 kg/cm2 and different weights of adsorbents i.e., 1, 2 and 3 grams. SEM results showed non porous channeled structure for untreated tea powder and highly porous compact structure for microwave synthesized tea powder. However, for microwave synthesized tea powder in 80 gram KOH solution and 300 KOH solution, the structures were less significant than simply microwave synthesized. Elemental analysis showed highest carbon weight percent for microwave synthesized tea powder of 62.08% while the microwave synthesized tea powder in 80 KOH solution had lowest carbon weight percent of 43.34%. Experiments showed highest adsorption capacity for 1 gram microwave synthesized tea powder waste followed by microwave synthesized tea powder waste in 300 gram KOH at 3 kg/cm2. Kinetic studies were also performed