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Author(s): Sónia A. C. Carabineiro
L. Sousa Lobo
Title: Understanding the reactions of CO2, NO and N2O with activated carbon catalysed by binary mixtures
Issue Date: 2016
Abstract: The carbon bulk diffusion mechanism and the catalytic carbon "nanoworm" model are used to understand therole of the phases prevailing in the catalyst particles and the causes of the synergistic effects observed in gasification rates ofactivated carbon by CO2, NO, and N2O. The kinetics were isothermally studied with the help of a TGA apparatus. Single andbinary catalysts were used. The metals were deposited on carbon by incipient wetness. Synergistic effects were observed withsome binary systems. Carbon gasification by CO2 and NO were particularly promoted by the addition of Ba combined with V,and gasification by N2O was promoted by Mn combined with Ba. The changes of catalyst phases with temperature were observedby in situ X-ray diffraction. Temperature-programmed experiments using NO showed N2, N2O, CO2, and CO as reaction products,while experiments using N2O showed only CO2 and N2. With CO2, only CO formation was detected.
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/UID/EQU/50020/2013- POCI-01-0145-FEDER-006984/Laboratório de Processos de Separação e Reação - Laboratório de Catálise e Materiais/LSRE-LCM
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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