Title: Utilisation of eggshell membrane as an adsorbent for carbon dioxide

Authors: Arghya Banerjee, Sriparna Panda, Manojit Sidhantha, Sampa Chakrabarti, Basab Chaudhuri, Sekhar Bhattacharjee

Addresses: Indian Institute of Petroleum, Mohkampur, Dehradun 248005, Uttarakhand, India. ' Jubilant Oraganosys, 56 Industrial Area, Nanjangud, Distt. Mysore Karnataka 571 302, India. ' Lummus Technology, Infinity Tower B, 2nd Floor DLF Cybercity, Phase–II Sector 25A, Gurgaon 122002, India. ' Department of Chemical Engineering, University of Calcutta, 92, Acharya PC Road, Kolkata 700 009, India. ' Department of Chemical Engineering, University of Calcutta, 92, Acharya PC Road, Kolkata 700 009, India. ' Department of Chemical Engineering, University of Calcutta, 92, Acharya PC Road, Kolkata 700 009, India

Abstract: Carbon dioxide (CO₂) is a major greenhouse gas responsible for global warming. This work aims to explore a cheap and easy way for CO₂ adsorption from the atmosphere, by using an eggshell membrane. Eggshell membrane could be used up to four times with intermediate regeneration with acetic acid solution. Atomic absorption spectrophotometer (AAS) analysed the amount of CO₂ adsorbed as equivalent calcium (Ca) present in calcium carbonate (CaCO₃). An average of 6824 mg COCO₂ could be adsorbed per g of eggshell membrane. Scanning electron micrograph (SEM) was used to analyse the surface morphology of the fresh and regenerated eggshell membrane.

Keywords: carbon dioxide; CO2 adsorption; eggshell membrane; carbon adsorption; greenhouse gases; GHG emisisons; global warming; surface morphology; calcium carbonate.

DOI: 10.1504/IJGW.2010.036136

International Journal of Global Warming, 2010 Vol.2 No.3, pp.252 - 261

Published online: 22 Oct 2010 *

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