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Catalisadores derivados de óxidos do tipo perovskita LaMO3, LaMFeO3 e LaMO3/γ-Al2O3 (M = Co, Ni ou Fe) aplicados à reforma a vapor de etanol
(Universidade Federal de São Carlos, 2014-07-30)
The hydrogen production has been extensively studied as a clean and powerful energy source, indicating that in the future hydrogen will became a key component for the global energy production, since burning fossil fuels, ...
Sobre a estabilidade de catalisadores de cobalto suportados durante a reforma do etanol
(Universidade Federal de São Carlos, 2012-06-11)
Cobalt-based catalysts supported on γ-alumina and magnesium aluminate modified with lanthanum and cerium have been applied to various conditions of reforming of ethanol. The initial challenge was to control the rate ...
Reforma autotérmica do metano: estudo do Processo e de catalisadores
(Universidade Federal de São Carlos, 2005-05-07)
The study of the autothermal reforming of methane over Ni/γ-Al2O3 catalyst, promoted with noble metals was the objective of this work.
In the first part, the stability to coke deposition of the autothermal reforming was ...
Catalisadores de Pt suportados, obtidos pelo método solgel : efeito do cério na atividade e estabilidade nas reações de reforma do metano
(Universidade Federal de São Carlos, 2009-12-11)
The effect of Ce as a structural and electronic promoter on the activity and stability of Pt catalysts supported on Al2O3 for methane reforming reactions were investigated to elucidate the metal-support interaction. Pt/Al2O3 ...
Síntese e avaliação de sílica tipo M41S contendo cátions CTA em transesterificação catalítica
(Universidade Federal de São Carlos, 2010-08-13)
The investments in the biofuel production have increased a lot in the last years mainly because of smaller damages they cause to the environment in comparison with the derived conventional petroleum fuels. The reaction of ...
Nanopartículas de Pt suportadas em Al2O3 e CeO2-Al2O3: síntese e caracterização de catalisadores aplicados à reação de deslocamento gás-água
(Universidade Federal de São Carlos, 2011-04-28)
Colloidal Pt nanoparticles were synthesized according to an adapted procedure from Song and co-workers [1], which it was based on the reduction of dihydrogen hexachloroplatinate by ethylene glycol in a basic solution, but ...
Estudo da preparação e das propriedades estruturais de catalisadores para a transformação do metano em gás de síntese e hidrocarbonetos
(Universidade Federal de São Carlos, 2010-06-15)
Pt catalysts supported on CeO2-La2O3-Al2O3, with different mixed oxide compositions, and CeO2-ZrO2-Al2O3, prepared using three different routes, were synthesized by sol gel technique. The samples were characterized using ...
Isomerização do n-heptano sobre catalisadores bifuncionais Pt-Ni suportados em zeólitas BEA e FAU
(Universidade Federal de São Carlos, 2009-12-09)
The objective of this paper was to study the influence of metal loading content on the properties of bimetallic catalysts, formed by Pt and Ni, supported on zeolite HUSY and HBEA. Another objective of this study was to ...
Preparação e aplicação de óxidos tipo perovskita La1-xCexNiO3 e La1-xCaxNiO3 para obtenção de gás de síntese a partir do metano.
(Universidade Federal de São Carlos, 2006-04-20)
Catalysts precursors with perovskite structure like La1-xCexNiO3 ( x = 0,
0.03, 0.05, 0.1, 0.4 ,0.7) and La1-xCaxNiO3 (x = 0, 0.05, 0.1, 0.3, 0.5, 0.8) have
been prepared by three different methods: precipitation, citrate ...
Influência do método de preparação de catalisadores bifuncionais, Pt-Ni/HUSY, na isomerização do n-hexano
(Universidade Federal de São Carlos, 2008-02-25)
Gasoline containing high amount of linear chain compounds have low
octane number. However, this number can be increased when linear alkanes are
subjected to isomerization, able to change linear chain compounds to ...