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Influence of Pt addition to Ni catalysts on the catalytic performance for long term dry reforming of methane
(Elsevier Science, 2012-09)
The influence of Pt addition (in very low concentrations) to a Ni/(10%)/Al 2O 3 catalyst in its catalytic performance during long-term experiments of dry reforming of methane was studied. The monometallic Pt(0.5%)/Al 2O 3 ...
Understanding the stability of Co-supported catalysts during ethanol reforming as addressed by in situ temperature and spatial resolved XAFS analysis
(Academic Press Inc Elsevier ScienceSan DiegoEUA, 2012)
Low metal loading catalysts used for the selective hydrogenation of styrene
(Sociedade Brasileira de Química, 2009-11)
A series of Group VIII metal catalysts was obtained for the semi-hydrogenation of styrene. Catalysts were characterized by Hydrogen Chemisorption, TPR and XPS. Palladium, rhodium and platinum low metal loading prepared ...
Study of a Brazilian spent catalyst as cement aggregate by thermal and mechanical analysis
(2008-04-01)
Fluidized catalytic cracking units of refineries normally use zeolite catalysts to treat heavy oil fractions. This catalyst is regenerated continuously, but due to the reduction of its activity during the process, it is ...
High-activity mesoporous Pt/Ru catalysts for methanol oxidation
(American Chemical Society, 2013-10)
High activity mesoporous Pt/Ru catalysts with 2D-hexagonal structure were synthesized using a triblock poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) copolymer (Pluronic F127) template. The normalized ...
Effect of Au doping of Ni/Al2O3 catalysts used in steam reforming of methane: Mechanism, apparent activation energy, and compensation effect
(2019-11-02)
Investigation was made of the effect of addition of Au to 15%Ni/Al2O3 catalysts used in the steam reforming of methane. The addition of Au was performed by impregnation of reduced Ni catalysts. The catalysts were characterized ...
Effect of water vapor over Pd-Co/SZ catalyst for the NO selective reduction by methane
(ELSEVIER SCIENCE BV, 2005-06)
he selective catalytic reduction (SCR) of NO by CH4 in the presence of excess 02 has been studied on Pd-Co, Pd and Co catalysts supported on sulfated zirconia (SZ) and activated in reaction mixture at 700 degreesC. After ...
XAS study on the gold particle size of Au catalysts
(Brazilian Synchrotron Light Laboratory, 2010-12)
In the last few years, gold catalysts have generated a great amount of interest. This has been the result of two main findings: gold is the most active catalyst for ethyne hydrochlorination, and it is also effective for ...
Study of the performance of Pt catalysts supported on activated carbon felt and granular carbon for nitrobenzene hydrogenation
(Elsevier Science SA, 2005-11)
The catalytic behavior of the Pt (1 wt%) catalysts supported on purified activated carbon felt (ACF) and powder carbon (C) has been studied in the nitrobenzene (NBZ) hydrogenation reaction in liquid phase after activation ...
Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
(Brazilian Society of Chemical Engineering, 2019-06)
Structured catalysts were prepared, characterized and evaluated in NO3 - removal from drinking water. Different suspensions containing a previously optimized PdCu/5wt% ZrO2-Al2O3 powder catalyst (hereinafter PdCu/5ZAp) ...