International Journal of Environmental Science and Development

Abstract—CO₂ influe gas from anthropogenic emission is one of the major contributors for global warming among greenhouse gases (GHG). Alkaline metal oxide (CaO, MgO, etc) adsorbents got industrial importance due to its use at high temperature CO₂ capture in coal gasification to separate hydrogen gas. In this paper, we discussed on the synthesis methods of mechanical mixing, freeze granulation and dispersion methods of adsorbents for CO₂ capture. Operational issues of packed bed reactor used for CC using the alkaline earth metals doped flyash. Pore size and surface areas dependence of monolithic pellets on carbonation - calcination temperatures. CC variation with monolithic pellet size and carbonation temperatures. Breakthrough curves of adsorption for the adsorbents were discussed. Adsorbents of limestone doped with flyash were analyzed using various analytical tools and the findings were reported.

Index Terms—Alkaline metal oxides doped with flyash, carbon capture, operational experiences in packed bed reactor, synthesis protocol of monolithic adsorbents.

B. Sreenivasulu, IshanVyas, Bansi M. Kamani, and I. Sreedhar are with the Department of Chemical Engineering, BITS Pilani Hyderabad Campus, Shameerpet, Hyderabad-78, India (e-mail: isreedhar2001@yahoo.co.in).
K. V. Raghavan is with Reaction Engineering Laboratory, Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India.

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Cite: B. Sreenivasulu, Ishan Vyas, Bansi M. Kamani, I. Sreedhar, and K. V. Raghavan, "Effect of Composition, Synthesis Protocol and Pellet Size of Cost Effective Adsorbents Doped with Flyash on Carbon Capture," International Journal of Environmental Science and Development vol. 7, no. 11, pp. 801-804, 2016.