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Título del libro: Lithium: Technology, Performance And Safety
Título del capítulo: Lithium ceramics as an alternative for the CO2 capture. Analysis of different physicochemical factors controlling this process

Autores UNAM:
TATIANA LILIA AVALOS RENDON; MARIA TERESA FLORES MARTINEZ; RAFAEL RODRIGUEZ MOSQUEDA; HERIBERTO PFEIFFER PEREA;

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Autores externos:

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Idioma:
Inglés

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Año de publicación:
2013

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Resumen:

Carbon dioxide (CO2) amounts have been raised in the atmosphere dramatically, mainly due to the combustion of different carbonaceous materials. Then, the so-called greenhouse effect has been increased, as well. Several proposals have been established trying to solve this problem, where a possible key means, for reducing the greenhouse effect, is to capture and concentrate CO2. In that sense, a considerable variety of materials have been tested as CO2 captors, some alkaline ceramics among them.Different lithium ceramics have been proposed for the CO2 capture through an absorption process. The CO2 capture mechanism is divided in two steps: 1) Initially, CO2 reacts on the particle surface. This superficial reaction involves the formation of an external shell composed of lithium carbonate and a residual ceramic (which depends of the initial ceramic). 2) Then, in order to continue the CO2 absorption by the ceramic, bulk diffusion processes must be activated and then the CO2 absorption is controlled by diffusion processes.Finally, it must be mentioned that CO2 absorption process on lithium ceramics not only depends on the intrinsic factors mentioned above. CO2 absorption depends on other external factors as well, such as the flow gas where the solid-gas interface may presentdifferent regimes; the gas composition, where the CO2 concentration vary or where CO2 competes with the other gases for the superficial ceramic active sites and the effect produced by the H2O vapor presence, among others. Therefore, the aim of the present chapter is to describe and summarize how each of these factors, intrinsic or not, affect the CO2 absorption process on the lithium ceramics. © 2013 by Nova Science Publishers, Inc. All rights reserved.

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9781624176340
Editorial:
Nova Science Publishers, Inc. Nombre de la publicación:
Lithium ceramics as an alternative for the CO2 capture. Analysis of different physicochemical factors controlling this process
Página inicial:
171
Página final:
192

Tipo de producto:
Capítulo de un Libro