1 Adsorbent Characteristics The surface morphological changes of the powder and carbon samples were studied using a scanning electron microscope (SEM). Figures 2 and 3 show scanning electron microscopy of the orange peel powder and the carbon obtained from the powder. The carbon obtained from the powder showed a more porous structure than the orange peel powder. The orange peel powder showed a vertical vein type structure and the carbon obtained from the powder showed a more porous structure with holes which gave the highest adsorption capacity compared to the orange peel powder. Figure 2 Scanning Electron Microscopy Figure 3 Scanning Electron Microscopy of Orange Peel Powder of Orange Peel Carbon Table -1 and 2 represent the elemental analysis of orange peel powder and carbon obtained from the powder respectively of orange peel. Besides that, this component is widely used to be produced as an adsorbent to absorb gas (CO2). Orange peel contains potassium oxide (K2O) with 1.72%, calcium oxide (CaO) with 1.31% and other components in the minority. Therefore, with the large amount of carbon component, the carbon produced by orange peel and also the orange peel itself is one of the potential adsorbents to absorb CO2 from the gas mixture. Table 1: Elemental Analysis Table 2: Elemental Analysis of Carbon Produced from Orange Powder Orange Peel Powder.Sr. No element Weight%1 Carbon 51.532 Oxygen 43.953 Potassium 1.724 Calcium 1.315 Platinum 1.306 Magnesium 0.19Sr. No element Weight%1 Carbon 64.262 Oxygen 32.493 Sulfur 1.55 ...... half of paper ......977 mmol/gm 12 LPH 25.28 cm 2.43055 mmol/gm 14 LPH 3Table-9: Orange peels Carbon (6 g).LMTZ (mass transfer zone length) CO2 capture capacity (breakthrough adsorption capacity) Gas flow rate, LPH Sr. No.4.5 cm 2.0667 mmol / gm 10 LPH 13.292 cm 3.844 mmol/gm 12 LPH 23.7674 cm 4.485 mmol/gm 14 LPH 3Table-10: Orange peels Carbon (7 g).LMTZ (Length of mass transfer zone) CO2 capture capacity (Revolutionary Adsorption Capacity) Gas flow rate, LPH Sr. No.3.52 cm 3.45428 mmol/gm 10 LPH 15.333 cm 1.7 mmol/gm 12 LPH 25.5873 cm 5.0843 mmol/gm 14 LPH 3Figure -7: Adsorption of carbon dioxide on carbon made from orange peel powder (5 g) for 10, 12 and 14 LPH Figure-8: Adsorption of CO2 gas on orange peel carbon (6 g) for 10, 12 and 14 LPHFigure 9: Carbon dioxide adsorption on carbon produced from orange peel powder (7 g) for 10, 12 and 14 LPH