SYNTHESIS and CHARACTERIZATION OF CATALYSTS Ni-Cu SYSTEM SUPPORTED ON CLAY AND ALUMINA AND ITS APPLICATION IN HYDROGENATION OF OILS

In the present work the catalytic behavior of the system Ni-Cu/supported on clay and alumina has been studied. The catalysts were prepared at a concentratlon of 1O% W of metalllc content. The method used in the preparation was impregnatlon, starting form the corresponding nitrates followed by a subs...

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Detalhes bibliográficos
Autores: Paredes, Luis, Saavedra, Ismael, Linares, Thais, Garrido, Alberto
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2001
País:Perú
Recursos:Universidad Nacional Mayor de San Marcos
Repositório:Revistas - Universidad Nacional Mayor de San Marcos
Idioma:espanhol
OAI Identifier:oai:revistasinvestigacion.unmsm.edu.pe:article/4277
Acesso em linha:https://revistasinvestigacion.unmsm.edu.pe/index.php/quim/article/view/4277
Access Level:Acceso aberto
Palavra-chave:Catalysis
vegetable oil hidrogenation
triglycaride hydrogenation
Lewis acidic centers
Catálisis
hidrogenación de aceite vegetal
hidrogenación de triglicérido
centros de ácido Lewis
Descrição
Resumo:In the present work the catalytic behavior of the system Ni-Cu/supported on clay and alumina has been studied. The catalysts were prepared at a concentratlon of 1O% W of metalllc content. The method used in the preparation was impregnatlon, starting form the corresponding nitrates followed by a subsequent drying and calclnation. The elemental quantitative analysis was accomplished by Atomic Absorption. The presence of the phases NIO and CuO was confirmed by DRX. The activity of the catalysts were tested in a batch reactor at 455 ºK and 500 r.p.m. for 200 ml/min of hydrogen during 2 and 4 hours. The greater activity was observed in the catalyst with a theoretical molar fraction of 0.75 with respect to the nickel, in whlch is observed a decrease of the iodine index of the sunflower oil from 84.28 to 56.95 in a period of 4 hours.