Supplementary Information: Synthesis and Regeneration of Sustainable CaO Sorbents from Chicken Eggshells for Enhanced Carbon Dioxide Capture
Eric R. Sacia, Shwetha Ramkumar, Nihar Phalak and Liang-Shih Fan*
Figure S1. Schematic of the TGA setup used in cyclic calcination/carbonation reactions
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Figure S2. DTG curve for eggshell treated for 30 minutes with 1 M acetic acid solution. The reaction temperature is heated from ambient conditions to 700°C at 50°C/min. The curve shows a large peak as the eggshell is calcined to CaO. At 30 minutes, carbonation begins with the introduction of 10% CO2 in N2. After 60 minutes, the gas is switched to pure N2, triggering calcination of the CaCO3 produced in cycle 1.
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