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Mostrando ítems 71-80 de 326
A PEACH STONE ACTIVATED CARBON CHEMICALLY MODIFIED TO ADSORB AQUEOUS AMMONIA
(Sociedad Chilena de Química, 2003)
Adição de fósforo (P) em catalisadores NiMo, suportados em γ-Al2O3, Al2O3/TiO2 e TiO2 - efeito na hidrodessulfurização do tiofeno
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2013-02-18)
Mo, NiMo or NiMoP HDS catalysts were supported on Al2O3, Al2O3-TiO2 or TiO2. These supports were synthesized via sol-gel and in the case o TiO2 it was used a commercial sample. The active phases were introduced by impregnation. ...
Síntese, caracterização e atividade fotocatalítica dos óxidos a base de CoFe2O4/Fe2O3 dispersos na KIT-6
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA, 2022-05-18)
Some poisonous compounds are resistant to degradation by common effluent treatments. For
this reason, development of new methods and materials capable of solving this problem.
Thus, the present work aimed to synthesize ...
Catalisadores de Mo suportados sobre sílica, sílica-titânia ou sílica-zircônia promovidos por Co ou Ni: avaliação do método de preparação e da composição do suporte na atividade para HDS
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2012-04-30)
Hydrodesulfurization (HDS) catalysts containing Mo, NiMo or CoMo were supported on silica, silica-titania and silica-zirconia. These supports were synthesized by the sol-gel method, using citric acid as an agent to pore ...
Síntesis, caracterización y evaluación catalítica en la HDS de DBT de catalizadores de NiMo soportados en Al-HMS
(Universidad Michoacana de San Nicolás de Hidalgo, 2012-03)
Materials were prepared hexagonal mesoporous silica (HMS) pure and modified with aluminum (AL-HMS) and used as supports for hydrotreating catalysts based on nickel and molybdenum. We determined some of its properties by ...
Evaluation of the surface and catalytic properties of the ethylene and oxygen adsorption process on gold catalysts supported on mixed oxides CeZr
(2017-07)
Abstract. Surface and catalytic properties of mixed oxides CeO2, Au/CeO2, CeZr and Au/CeZr, during the total oxidation of ethylene is presented in this work. Four types of supports were used: synthesised and commercial ...
Energetics of CO2 and H2O Adsorption on Zinc Oxide.
(Washington, 2014)
Adsorption of H2O and CO2 on zinc oxide surfaces was studied by gas adsorption calorimetry on nanocrystalline samples prepared by laser evaporation in oxygen to minimize surface impurities and degassed at 450 °C. Differential ...
Novel binderless zeolite-coated monolith reactor for environmental applications
(Elsevier Science Sa, 2010-12)
A novel structured catalyst based on a binderless zeolite film was developed onto a cordierite monolith. The zeolitic film was obtained performing a binderless washcoating which was followed by a hydrothermal treatment, ...