Capture of carbon dioxide over porous solid adsorbents lithium silicate, lithium aluminate and magnesium aluminate at pre-combustion temperatures

P. V. Korake, A. G. Gaikwad

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PDF(747 KB)
Front. Chem. Sci. Eng. ›› 2011, Vol. 5 ›› Issue (2) : 215-226. DOI: 10.1007/s11705-010-1012-9
RESEARCH ARTICLE

Capture of carbon dioxide over porous solid adsorbents lithium silicate, lithium aluminate and magnesium aluminate at pre-combustion temperatures

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Abstract

The capturing process for carbon dioxide over porous solid adsorbents such as lithium silicate, lithium aluminate, and magnesium aluminate at pre- combustion temperatures was studied. Lithium silicate was prepared by the sol gel and solid fusion methods. The lithium silicate adsorbent was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), nuclear magnetic resonance (NMR), and surface area. The capturing of carbon dioxide over lithium silicate, lithium aluminate, and magnesium aluminate was explored at different experimental conditions such as exposure time, temperature variation, and exposure carbon dioxide pressure. The capturing process for carbon dioxide was investigated over these adsorbents with variation of their metal mole ratios. The effect of the addition of (promoter) sodium, potassium, and cesium in the lithium silicate adsorbent was explored to investigate the variation of the capture of carbon dioxide over these adsorbents.

Keywords

capturing CO2 / lithium silicate / lithium aluminate / magnesium aluminate

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P. V. Korake, A. G. Gaikwad. Capture of carbon dioxide over porous solid adsorbents lithium silicate, lithium aluminate and magnesium aluminate at pre-combustion temperatures. Front Chem Sci Eng, 2011, 5(2): 215‒226 https://doi.org/10.1007/s11705-010-1012-9

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Acknowledgments

The authors were grateful to the Department of Science and Technology, Government of India for awarding Research Grant GAP271526.

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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