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Issue 43, 2013
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CaO-based sorbents for CO2 capture prepared by ultrasonic spray pyrolysis

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Abstract

We report the ultrasonic spray pyrolysis (USP) synthesis and characterization of composite calcium oxide-based sorbents for carbon dioxide capture. Inclusion of a small amount of Al2O3 into the CaO matrix (as low as Al/Ca: 0.03) yielded significant enhancement of resistance to recycling degradation. The effective homogenous dispersion of additives in the CaO matrix and the relatively high surface area materials obtained via USP explain the sorbent's high performance. All materials were characterized by XRD, STEM, TEM, SEM, and TGA (for CO2 uptake measurements). Two common phases of CaAlxOy, Ca12Al14O33 and Ca3Al2O6, were formed during multiple cycles of calcination and CO2 uptake.

Graphical abstract: CaO-based sorbents for CO2 capture prepared by ultrasonic spray pyrolysis

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Publication details

The article was received on 03 Jul 2013, accepted on 30 Aug 2013 and first published on 11 Sep 2013


Article type: Communication
DOI: 10.1039/C3RA44566F
Citation: RSC Adv., 2013,3, 19872-19875
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    CaO-based sorbents for CO2 capture prepared by ultrasonic spray pyrolysis

    M. Sayyah, B. R. Ito, M. Rostam-Abadi, Y. Lu and K. S. Suslick, RSC Adv., 2013, 3, 19872
    DOI: 10.1039/C3RA44566F

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