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Nanoparticles of tungsten as low-cost monometallic catalyst for selective hydrogenation of 3-hexyne
(Sociedade Brasileira de Química, 2016-01)
Low-cost tungsten monometallic catalysts containing variable amounts of metal (4.5, 7.1 and 8.5%W) were prepared by impregnating alumina with ammonium metatungstate as an inexpensive precursor. The catalysts were characterized ...
Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
(Hindawi Publishing Corporation, 2013-09)
Palladium, platinum and ruthenium supported on activated carbon were used as catalysts for the selective hydrogenation of 1-heptyne, a terminal alkyne. All catalysts were characterized by Temperature Programmed Reduction, ...
Desarrollo de catalizadores de metales nobles soportados para hidrogenaciones selectivas en química fina
(2014-03-27)
Se realizó un estudio de catalizadores mono y bimetálicos soportados sobre materiales carbonosos no activados con diferentes formatos estructurales, granular y nanotubos, para la hidrogenación quimioselectiva de citral. ...
Semi-hidrogenación catalitíca de alquinos usando metales soportados
(2008-05-27)
Different factors which have influence on the semi-hydrogenation of 1-heptyne to 1-heptene were evaluated in the present thesis.
Mono and bimetallic catalysts by incipient wetness and successive impregnation techniques ...
Pt catalysts supported on ion exchange resins for selective glycerol oxidation. Effect of Au incorporation
(Elsevier Science, 2017-05)
In this paper, bimetallic Pt-Au catalysts were studied for the selective liquid phase oxidation of glycerol. The support used was a macroporous weak anion exchange resin. Two different preparation methods were employed: ...
Influence of Ni addition to a low-loaded palladium catalyst on the selective hydrogenation of 1-heptyne
(Sociedade Brasileira de Química, 2010-03)
Semi-hydrogenation of alkynes has industrial and academic relevance on a large scale. To increase the activity, selectivity and lifetime of monometallic catalysts, the development of bimetallic catalysts has been investigated. ...
Liquid-Phase Selective Hydrogenation of Hexa-1,5-diene and Hexa-1,3-diene on Palladium Catalysts. Effect of Tin and Silver Addition
(Elsevier, 2000-10)
The liquid-phase hydrogenation of hexa-1,5-diene and hexa-1,3-diene on alumina-supported palladium catalysts is investigated with special attention paid to the effects of tin or silver addition. All catalysts show a global ...
Influência do teor metálico na isomerização do n-hexano sobre Ni-Pt/HUSY.
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2003-08-06)
The isomerization of linear alcanes has arised great interest in the industry of refining of oil with the intention to transform n-paraffins (particularly with 6 and 7 carbon atoms), in iso-paraffins, since these last ones ...
Selective liquid-phase hydrogenation of citral over supported bimetallic Pt-Co catalysts
(Elsevier Science, 2009-04)
The liquid-phase hydrogenation of citral was studied at 393 K and 10 bar on Pt-Co/C catalysts, having different Pt/(Pt+Co) ratios and containing a total metal loading of about 2%. The monometallic and bimetallic Pt-Co/C ...