XRD Studies on Transformation of Dolomite under CO₂ and N₂ Atmosphere

Abstract:

In this study, dolomite was heated under CO₂ and N₂ gases using fluidized bed reactor from 85 °C to 835 °C. Dolomite under N₂ atmosphere did not show any significant changes on its crystallite size, suggesting there is no significant chemical reaction. On the other hand, dolomite under CO₂ atmosphere shows no significant changes on its crystallite size until it reaches high temperature (> 800 °C) where MgO started to be observed in X- ray diffraction. This shows that few chemical reactions started to happen in this reaction condition.

• Periodical: Materials Science Forum (Volume 1010)
• Pages: 355-360
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1010.355
• Online since: September 2020
• Authors: Siti Sarahah Sulhadi*, Maratun Najiha Abu Tahari, Salma Samidin, Wan Nor Roslam Wan Isahak, Muhammad Rahimi Yusop, Mohd Ambar Yarmo
• Keywords: CO₂, Decomposition, Fluidized Bed Reactor, X-Ray Diffraction

References

[1] Makó Ė. The effect of quartz content on the mechanical activation of dolomite,, J Eur. Ceram. Soc., (2007).

[2] A Review of the Literature on Catalytic Biomass Tar Destruction Archived 2015-02-04 at the Wayback Machine National Renewable Energy Laboratory.G. O. Young, Synthetic structure of industrial plastics,, in Plastics, 2nd ed., vol. 3, J. Peters, Ed. New York: McGraw-Hill,(1964).

[3] Martin H., Harald H., Karl S., Dolomite decomposition in a High Temperature Fluidized Bed Reactor,, West Germany J. Chem. Tech., Biotechnol., 33A,12-24, (1983).

[4] McCauley, R.; Johnson, L. Thermochimica Acta, 185, 271 – 282, (1991).

[5] Dollimore, D.; Dunn, J.; Lee, Y.; Penrod, B. Thermochimica Acta 1994, 237, 125 - 131. E. P. Wigner, Theory of traveling-wave optical laser,, Phys.Rev., vol. 134, pp. A635–A646,(1965).

DOI: 10.1016/0040-6031(94)85191-3

[6] Farizul H. K., P. C. Goh, D. M. S. N. Suhardy, H. M. D. Irfan, and S. Saiful Azhar, Dolomite as a raw material in fertilizer production,, in Proceedings of the AEESEAP International Conference, N. A. Rahim, Ed., p.4–8, Kuala Lumpur, Malaysia, (2005).

[7] McIntosh R.M., J.H. Sharp,and F.W. Wilburn, The thermal decomposition of dolomite,, Termochimica Acta, vol. 165.,no.2, pp.281-296, (1990).

DOI: 10.1016/0040-6031(90)80228-q

[8] Mohammed M.A.A., A. Salmiaton, W.A.K.G. Wan Azlina, M.S. Mohamad Amran, and Y.H. Taufiq-Yap, Preparation and Characterization of Malaysian Dolomites as a Tar Cracking Catalyst in Biomass Gasification Process,, Journal of Energy, p.p.8. Vol. (2013).

DOI: 10.1155/2013/791582

[9] Borgwardt, R. H., Industrial & Engineering Chemistry Research, p.28, 493 – 500, 198.

[10] Silaban, A., Narcida, M., Harrison, D. P., Chemical Engineering Communications,146,(1996).

[11] Valverde, J.M., Perejon, A.; Medina, S., Perez Maqueda, L.A. Thermal decomposition of dolomite under CO2: Insights from TGA and in situ XRD analysis,, Phys. Chem.,17,(2015).

DOI: 10.1039/c5cp05596b

[12] Gunasekaran S, Analagan G. Thermal decomposition of natural dolomite,, Bull. Mater. Sci., (2007).

[13] Caceres P.G. and Attiogbe E.K. Thermal decomposition of dolomite and the extractions of its constituents,,. Min.Eng.Vol. 10, pp.1165-1176, (1997).

DOI: 10.1016/s0892-6875(97)00101-5