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New synthesis method for CaO-based synthetic sorbents with enhanced properties for high-temperature CO2 -capture by Johann Mastin; Asunción Aranda; Julien Meyer is a Engineering article available to read on EtoBox.

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In this paper, a new synthesis method to obtain mixed CaO/Ca 12 Al 14 O 33 solids for high temperature CO 2 capture is presented. The modification of a pure phase Ca 3 Al 2 O 6 solid through a thermal treatment under controlled conditions leads to a high CO 2 absorption capacity material, with very promising long term stability during absorption/desorption cycles. The influence of the calcination temperature during the synthesis of the Ca 3 Al 2 O 6 powders, and the temperature and atmosphere applied during the thermal treatment was studied. Therefore, optimum conditions for high stabilization rate and high final CO 2 absorption capacity of the sorbent could be determined. Comparison with a natural sorbent (dolomite) over 150 carbonation/calcination cycles is also included, showing a substantial improvement of the synthetic solid CO 2 -uptake at long term use, compared to that of natural sorbents.

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Author

Johann Mastin; Asunción Aranda; Julien Meyer

Publisher

Elsevier ; Elsevier BV (ISSN 1876-6102)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)