Repositorio de producción científica de la Universidad de Sevilla

Multicyclic conversion of limestone at Ca-looping conditions: The role of solid-sate diffusion controlled carbonation

Opened Access Multicyclic conversion of limestone at Ca-looping conditions: The role of solid-sate diffusion controlled carbonation

Citas

buscar en

Estadísticas
Icon
Exportar a
Autor: Sánchez Jiménez, Pedro Enrique
Valverde Millán, José Manuel
Pérez Maqueda, Luis Allan
Departamento: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Universidad de Sevilla. Departamento de Química Inorgánica
Fecha: 2014
Publicado en: Fuel, 127, 131-140.
Tipo de documento: Artículo
Resumen: Limestone derived CaO conversion when subjected to multiple carbonation/calcination cycles is a subject of interest currently fueled by several industrial applications of the so-called Ca-looping (CaL) technology. The multicyclic CaO conversion at Ca-looping conditions exhibits two main features as demonstrated by thermogravimetric analysis (TGA). On one hand, carbonation occurs by two well differentiated phases: a first kinetically-driven fast phase and a subsequent much slower solid-state diffusion controlled phase. On the other, carbonation in the fast phase usually shows a drastic decay with the cycle number along the first carbonation/calcination cycles. This trend can be reversed by means of heat pretreatment, which induces a marked loss of fast conversion in the first carbonation but enhances diffusion of CO2 in the solid. Upon decarbonation the regenerated CaO skeleton displays an increased conversion in the fast carbonation phase of the next cycle, a phenomenon which has been...
[Ver más]
Cita: Sánchez Jiménez, P.E., Valverde Millán, J.M. y Pérez Maqueda, L.A. (2014). Multicyclic conversion of limestone at Ca-looping conditions: The role of solid-sate diffusion controlled carbonation. Fuel, 127, 131-140.
Tamaño: 851.7Kb
Formato: PDF

URI: https://hdl.handle.net/11441/74157

DOI: 10.1016/j.fuel.2013.09.064

Ver versión del editor

Mostrar el registro completo del ítem


Esta obra está bajo una Licencia Creative Commons Atribución-NoComercial-SinDerivadas 3.0 Estados Unidos de América

Este registro aparece en las siguientes colecciones