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Modification of multimetallic naphtha-reforming catalysts by indium addition
(American Chemical Society, 2009-01)
Pt-Re-Ge/Al2O3 and Pt-Re-Sn/Al2O 3 trimetallic naphtha-reforming catalysts were modified by the addition of indium. This additive negatively modified both the acid and metal functions of the catalysts. It produced a decrease ...
Pt–Re–Ge/Al2O3 catalysts for n-octane reforming: Influence of the order of
(Elsevier Science, 2012-03)
Trimetallic Pt–Re–Ge supported catalysts for naphtha reforming were prepared by successive impregnation of suitable precursors on gamma alumina. The order of addition of these precursors was varied and its influence on the ...
Effect of the method of addition of Ge on the catalytic properties of Pt-Re/Al2O3 and Pt-Ir/Al2O3 naphtha reforming catalysts
(Elsevier Science, 2006-09)
Pt-Re/Al2O3 and Pt-Ir/Al2O3 catalysts were modified by addition of an inactive metal, germanium, in order to suppress the strong hydrogenolytic activity of these types of catalysts. The influence of the addition method of ...
Preparación por el método de reducción catalítica de catalizadores Pt-Re-Ge/Al2o3 y Pt-Re-Sn/Al2o3 de reformado de naftas. Caracterización y regeneración
(2008-03-13)
En catalizadores PtReGe/Al2O3 y PtReSn/Al2O3 el tercer metal se depositó empleando distintas técnicas, en reducción catalítica (RC) se varió el medio de impregnación y el porcentaje del tercer metal.
La función metálica ...
PtPdNi Catalysts Supported on Porous Carbon for Ethanol Electro-oxidation
(Wiley VCH Verlag, 2019-08-07)
In this work, we prepared four electrocatalysts based on trimetallic PtPdNi nanoparticles on different carbon supports, i. e., i) two activated carbons produced from biomass, ii) micro‐mesoporous carbon synthesized by the ...
Catalytic properties of Pt-Re/Al2O3 naphtha-reforming catalysts modified by germanium introduced by redox reaction at different pH values
(American Chemical Society, 2009-04)
Ge was deposited by catalytic reduction on Pt-Re/Al2O 3-Cl base catalysts prepared by coimpregnation. The nominal amounts of Ge incorporated from various impregnation media (H2O, HCl, or NH3) were 0.1, 0.3, 1.0, and 2.0 ...
Catalisadores à base de Cu, Zn, Al e Ce aplicados à reação deslocamento gás-água
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2014-03-26)
The water gas-shift reaction (WGS) is an important step in the production process and purification of H2 from hydrocarbon. Commercially, to overcome the thermodynamic and kinetic limitations, this reaction occurs in two ...
Estudio de la incorporación de quelantes y relación de w en catalizadores de NiMo y NiMoW soportados en Ti-HMS y su aplicación en hidrodesulfuración
(Universidad Michoacana de San Nicolás de Hidalgo, 2018-11)
Based on the information obtained in previous studies for the preparation of better HDS catalysts (hydrodesulfurization), in the present research project the study of the incorporation of chelators in bimetallic and ...
Preparação e teste de nanocatalisadores 'PTFENI'/'C' e 'PTFECO'/'C' para redução de oxigênio
(Universidade Estadual Paulista (Unesp), 2013-06-17)
Neste trabalho foram sintetizadas nanopartículas de Pt, PtFe, PtNi, PtCo, PtFeNi e PtFeCo suportadas em pó de carbono através do método da microemulsão, que foram testadas como potenciais eletrocatalisadores frente a reação ...