Metal and Precursor Effect during 1-Heptyne Selective Hydrogenation Using an Activated Carbon as Support [PDF]
The Scientific World Journal, 2013 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, X-ray diffraction, transmission
Cecilia R. Lederhos +6 more
doaj +3 more sources
Evaluation of Thermal Properties of Composites Prepared from Pistachio Shell Particles Treated Chemically and Polypropylene [PDF]
Molecules, 2022 The purpose of the present work was to prepare polypropylene (PP) matrix composited filled with chemically treated pistachio shell particles (PTx), and evaluate their effect on the composites’ thermal properties.
Beatriz Adriana Salazar-Cruz +4 more
doaj +2 more sources
Metal–Organic Framework-Based Sustainable Nanocatalysts for CO Oxidation [PDF]
Nanomaterials, 2020 The development of new catalytic nanomaterials following sustainability criteria both in their composition and in their synthesis process is a topic of great current interest.
Luis A. Lozano +3 more
doaj +2 more sources
Glycerol Carbonate as an Emulsifier for Light Crude Oil: Synthesis, Characterization, and Stability Analysis [PDF]
MoleculesThis study focuses on the synthesis and application of glycerol carbonate (GC) as an emulsifier for light crude oil. GC was synthesized from glycerol and dimethyl carbonate via transesterification, achieving a 90% yield.
Ana Beatriz Morales Cepeda +3 more
doaj +2 more sources
La ciudad intermedia industrial: transformación urbana de Barrancabermeja entre 1951 y 2002
Jangwa Pana, 2023 El Estado ha gestionado multiescalarmente intervenciones urbanas en la ciudad intermedia de Barrancabermeja como respuesta a su crecimiento poblacional, el cual estuvo influenciado por la industria petroquímica desde su asentamiento, a finales de la ...
Giovanny Andrés Rueda Guzmán
doaj +1 more source
A Contribuição dos Programas da Qualidade na Competitividade: Estudo de Caso no Mercado Brasileiro de Polipropileno [PDF]
Polímeros, 2002 Quando as empresas brasileiras despertaram para uma busca mais efetiva da competitividade, após a abertura comercial, os programas da Qualidade tiveram uma grande difusão em muitos setores e a busca da satisfação do cliente, associada à redução de custos,
José Luiz M. de Carvalho +1 more
doaj +1 more source
Hydrocracking of long paraffins over Pt-Pd/WO3-ZrO2 in the presence of sulfur and aromatic impurities [PDF]
, 2013 The hydrocracking of long paraffins in the presence of sulfur and aromatic impurities using Pt–Pd/WO3–ZrO2 was assessed. The catalysts were tested for n-hexadecane hydrocraking in the presence and absence of several poisons, benzothiophene, quinolein ...
Busto, Mariana +4 more
core +1 more source
Química Nova, 2011 In esterification of oleic acid with methanol at 25 °C HPA displayed the highest activity. Moreover the HPA could be reused after being transformed into its cesium salt.
Jorge H. Sepúlveda +5 more
doaj +1 more source
Revista de Economia Contemporânea, 2012 This paper explores the notion of competences to innovate taking a productive chain perspective. This notion has been applied to study innovation in a very large perspective as in the case of French industrial studies or in a sectoral perspective.
Flávia Chaves Alves +3 more
doaj +1 more source
New amphiphilic amino acid derivatives for efficient DNA transfection in vitro [PDF]
, 2017 Nucleic acids-based therapies have recently developed as next-generationagents for treating and preventing viral infection, cancer, and genetic disorders,but their use is still limited due to its relatively poor delivery into targetedcells.
Antuña, Sebastián +7 more
core +1 more source