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Dissolution of Zeolite as a Sorbent in Flue Gas Desulphurization Process Using a pH Stat Apparatus
Sulphur dioxide is a harmful gaseous product that needs to be minimized in the atmosphere. This research work investigates the use of zeolite as a possible additive that can improve the sulphur dioxide capture in wet flue gas desulphurisation dissolution process. This work determines the effect of temperature, solid to liquid ratio, acid concentration and stirring speed on the leaching of zeolite using a pH stat apparatus. The atomic absorption spectrometer was used to measure the calcium ions from the solution. It was found that the dissolution rate of zeolite decreased with increase in solid to liquid ratio and increases with increase in temperature, stirring speed and acid concentration. The activation energy for the dissolution rate of zeolite in hydrochloric acid was found to be 9.29kJ/mol. and therefore the product layer diffusion was the rate limiting step.
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[1] Z. Klimont, S. J. Smith and J. Cofala, "The last decade of global anthropogenic sulfur dioxide: 2000–2011 emissions”, Environmental Research Letters, 2013, vol. 14, pp. 1-3.
[2] D. Kunkel, H. Tost and M. Lawrence, "Impact of anthropogenic emissions from major population centers on global and regional aerosol budgets”, .EGU General Assembly Conference Abstracts, 2013, vol. 7083.
[3] National Environmental Management, South Africa, Air and Quality Act, Act No. 30 of 2004, 2005.
[4] C. You and Y. Li, "Desulfurization Characteristics of Rapidly Hydrated Sorbents with Various Adhesive Carrier Particles for a Semidry CFBFGD System”, Environ. Sci. Technol., 2013, vol. 47, pp. 2754-2759.
[5] H. Song and J. Park, "Improvement of SO2 removal by the solubility change of Ca (OH)2 in the spray dryer system” ,Environ. Technol., 2001, vol. 22, pp. 1001-1006.
[6] H. Rutto and C. Enweremadu, "A study on dissolution of a South African calcium based material in acetic acid solution for flue gas desulphurization”, Electrical and Control Engineering (ICECE) International Conference. 2011, pp. 5701-5705.
[7] S. Shih, J. Lin and G. Shiau, "Dissolution rates of limestones of different sources”, J. Hazard. Mater., 2000, vol.79, pp.159-171.
[8] Z. Siagi and M. Mbarawa., "Dissolution rate of South African calciumbased materials at constant pH”, J. Hazard. Mater., 2009, vol.163, pp.678-682.
[9] H. Rutto and C. Enweremadu., "The dissolution study of a South African magnesium-based material from different sources using a pHstat’, Chemical Industry and Chemical Engineering Quarterly, 2011, vol. 17, pp.459-468.
[10] N. Karatepe, A. Mericboyu and S. Küçükbayrak, "Effect of Hydration Conditions on the Physical Properties of Fly Ash-Ca (OH)2 Sorbents” ,Energy Source. 1998, vol.20, pp. 505-511.
[11] A. Garea, I. Fernandez, J. Viguri, M. Ortiz, J. Fernandez, M. Renedo and J. Irabien, "Fly-ash/calcium hydroxide mixtures for SO2 removal: structural properties and maximum yield”, Chem. Eng. J., 1997, vol.66, pp. 171-179.
[12] C. Jorgensen, J.C.S. Chang and T.G. Brna, "Evaluation of sorbents and additives for dry SO2 removal”, Environmental Progress. 198, vol.6, pp. 26–32.
[13] N. Karatepe, N. Erdog˘an, A.E. Meriçboyu, S. Küçükbayrak, "Preparation of diatomite/Ca(OH)2 sorbents and modelling their sulphation reaction”, Chemical Engineering Science. 2004, vol. 59, pp. 3883-3889.
[14] S.A. Abdulkareen, E. Muzenda, A.S. Afolabi , J. Kabuba, " Treatment of clinoptilolite as an Adsorbent for the Removal of copper Ion from Synthetic Wastewater solution”, Arab. J. Sci. Eng., 2013, vol. 38, pp. 2263-2272.
[15] J.D. Gilchrist, Extraction Metallurgy, Pergamon Press.1989
[16] B.B. Mamba, D.W. Nyembe and A.F. Mulaba-Bafubiandi, "The effect of conditioning with NaCl, KCl and HCl on the performance of natural clinoptilolite’s removal efficiency of Cu2+ and Co2+ Synthetic solution”, Water SA., 2009, vol. 36, pp. 437-444.
[17] K.T. Lee, M.A. Mothar, N.F. Zainudin, S. Bhatia and A.R. Mohamed, "Optimum conditions for the preparation of flue gas desulphurization sorbent from rice husk ash”, 2004, vol.84, pp. 143-151.
[18] E.M. Van der Merwe and C. Strydom, "Hydration of medium reactive magnesium oxide using hydration agents”, Journal of Thermal Analysis and Calorimetry. 2006, vol. 84, pp. 467-471.
[19] Z. I. Zafar. “Determination of semi empirical kinetic model for dissolution of bauxite ore with sulfuric acid: Parametric cumulative effect on the Arrhenius parameters”, Chem. Eng. J., 2008, vol.141, pp.233-241.
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