Synthesis gas production by partial oxidation of methane on Pt/Al2O3, Pt/Ce-ZrO2 and Pt/Ce-ZrO2/Al2O3 catalysts

Fatores Associados Aos Sintomas Depressivos Em Agentes Comunitários De Saúde

“…Os resultados sugerem que os sintomas depressivos foram menores entre aqueles que são religiosos quando comparados aos que referiram não o ser. Há evidências de que a religiosidade é benéfica fazendo com que haja menos propensão à depressão, pois a crença e a prática religiosa, provavelmente, atuam como facilitadoras no ajustamento psicológico (Silva et al, 2015). A participação em cultos religiosos, pelo menos uma vez na semana, indica que a frequência nestes locais é um fator de proteção para quadros de esgotamento emocional (Martins et al, 2014).…”

Hydrogen production from simple alkanes and oxygenated hydrocarbons over ceria–zirconia supported catalysts: Review

“…Since the OSC of the support was not affected by Pt dispersion, the increased methane decomposition led to imbalance in the OSC and thus carbon deposition, leading to deactivation. In contrast, Silva et al [93,94] found that 1.5 wt% Pt/Ce0.75Zr0.25O2-Al2O3 exhibited lower activity under the same conditions. The lower activity of the catalyst was attributed to lower surface coverage and OSC.…”

Effect of ZrO2/CeO2 mixed oxides on fuel gas production during self-sustaining smouldering combustion of lignocellulosic wastes

“…Zirconia is more chemically inert compared to traditional supports such as SiO 2 and Al 2 O 3 , 26 and their properties can be enhanced with the inclusion of another oxide, typically ceria. 27 The use of zirconia-ceria mixed oxide as a support is a popular mixture that can be used for many thermochemical reactions including WGS, [28][29][30][31][32][33] dry reforming of methane, [34][35][36][37][38][39] steam reforming of methane, [40][41][42] CO 2 methanation, 43 partial oxidation of methane, 44 and thermochemical splitting of CO 2 . 45 Although additives have been added to the feedstock to improve the conditions for smouldering combustion, 46,47 the use of catalysts to selectively target certain reactions has never been studied before in smouldering combustion.…”

“…Zirconia is more chemically inert compared to traditional supports such as SiO 2 and Al 2 O 3 , 26 and their properties can be enhanced with the inclusion of another oxide, typically ceria. 27 The use of zirconia-ceria mixed oxide as a support is a popular mixture that can be used for many thermochemical reactions including WGS, 28–33 dry reforming of methane, 34–39 steam reforming of methane, 40–42 CO 2 methanation, 43 partial oxidation of methane, 44 and thermochemical splitting of CO 2 . 45…”