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Valorization of Waste Tires via Catalytic Fast Pyrolysis Using Palladium Supported on Natural Halloysite
(American Chemical Society, 2021-09-15)
We report for the first time Pd nanoparticles (NPs) supported on natural halloysite as catalysts for selective production of p-cymene from waste tire pyrolysis (WTP). The catalysts were prepared by dispersing Pd NPs on ...
Screening of optimal pretreatment and reaction conditions for the isomerization-cracking of long paraffins over Pt/WO3–ZrO2 catalysts
(Elsevier Science, 2010-10)
Pretreatment and reaction conditions for the isomerization-cracking of long paraffins over commercial Pt/WO3-ZrO2 catalysts were screened. Optimal conditions were seeked for the production of short, high octane branched ...
CO2 hydrogenation to methanol on Ga2O3-Pd/SiO2 catalysts: Dual oxide-metal sites or (bi)metallic surface sites?
(Elsevier Science, 2020-07)
A series of palladium (2 wt.%) catalysts supported on silica (301 m2/g) and loaded with increasing amount of gallium ? ratio of Ga/Pd = 2, 4 and 8 atom/atom ? were investigated for CO2 hydrogenation to methanol. The turnover ...
Reforma a vapor catalítica do metano: Otimização da produção e seletividade em hidrogênio por absorção in situ do CO2 produzido
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em QuímicaFísico-Química; Química, 2013-04-29)
Topics of research related to energy and environment have significantly grown in
recent years, with the need of its own energy as hydrogen. More particularly,
numerous researches have been focused on hydrogen as energy ...
Conversão de glicerina residual de biodiesel em ácido fórmico utilizando catalisadores de nióbio e vanádio
(Universidade Federal de Minas GeraisUFMG, 2016-12-09)
This work proposes the transformation of the biodiesel production process residue, the blonde glycerin in the raw material for obtaining products of interest to the petrochemical industry, such as formic acid. Several ...
Gas-phase conversion of 1,3-butanediol on single acid-base and Cu-promoted oxides
(Elsevier Science, 2013-09)
The gas-phase conversion of 1,3-diols was studied on catalysts containing different active sites and using 1,3-butanediol as a model molecule. Transformation of the diol primary and/or secondary OH groups by dehydration ...
Acidic V-MCM-41 catalysts for the liquid-phase ketalization of glycerol with acetone
(Elsevier Science, 2019-01)
SiMCM-41 and V-MCM-41 were hydrothermally synthesized with different quantities of vanadium, characterized by small angle X-ray scattering, nitrogen physisorption, and the insertion of vanadium was assessed by temperatur ...
Desarrollo de nuevos catalizadores para conversión de monóxido de carbono para producción de hidrógeno
(2010-06-23)
En este trabajo de Tesis se estudió el comportamiento de distintos sistemas metálicos soportados en la reacción de cambio, reacción en la cual a partir de monóxido de carbono y vapor de agua se obtiene dióxido de carbono ...
Catalizadores para la desoxigenación de compuestos modelo de Bio-Oil
(2014-05-15)
En este trabajo se estudian catalizadores para la desoxigenación de compuestos característicos de bio-oil obtenido por pirólisis rápida de biomasa, de manera de transformarlos en fracciones valiosas para ser utilizados ...
A kinetic study of the 1,3-dipolar cycloaddition reaction between N-p-methoxybenzyliden-α-phenylglycine methyl ester and nitrosobenzene
(1997)
The kinetics of the reaction between N-p-methoxybenzyliden-cc-phenylglycine methyl ester and nitrosobenzene, using benzene as the solvent and both acetic and chloroacetic acid as catalysts, was studied by means of UV-VIS ...