Results 11 to 20 of about 7,348 (171)

Sulfur Resistance of Pt-W Catalysts

open access: yesJournal of Chemistry, 2013
The sulfur resistance of low-loaded monometallic Pt catalysts and bimetallic Pt-W catalysts during the partial selective hydrogenation of styrene, a model compound of Pygas streams, was studied.
Carolina P. Betti   +7 more
doaj   +2 more sources

Ru-Sn-B/Al2O3 Catalysts for Selective Hydrogenation of Methyl Oleate: Influence of the Ru/Sn Ratio

open access: yesJournal of Chemistry, 2015
This study focuses on the influence of the Ru/Sn ratio on the catalytic hydrogenation of methyl oleate to oleyl alcohol using Ru-Sn-B catalysts, notably on the catalytic activity and selectivity.
María A. Sánchez   +4 more
doaj   +2 more sources

La industria petroquímica en la etapa de especialización flexible [PDF]

open access: yesEstudios Económicos, 1999
La industria petroquímica en la etapa de especialización ...
Viviana Leonardi, Raúl Dichiara
doaj   +4 more sources

Eficiência alocativa comparada: o caso da indústria petroquímica baiana

open access: yesNova Economia, 2013
Eficiência alocativa comparada: o caso da indústria petroquímica ...
José Carrera-Fernandez
doaj   +1 more source

O Processo de Aquisição de Tecnologia pela Indústria Petroquímica Brasileira

open access: yesPolímeros, 2001
Um dos setores industriais brasileiros mais dinâmicos, a indústria petroquímica, está localizada em três pólos (Camaçari, São Paulo e Triunfo) e hoje representa cerca de 2% do PIB do país.
Hemais Carlos A.   +2 more
doaj   +1 more source

Integración comercial: el caso de la industria química y petroquímica en el Mercosur [PDF]

open access: yesEstudios Económicos, 1995
Integración comercial: el caso de la industria química y petroquímica en el ...
Fabiana López, Raúl O. Dichiara
doaj   +4 more sources

Peer review of the pesticide risk assessment of the active substance paraffin oil (CAS 8042-47-5, chain lengths C<sub>17</sub>-C<sub>31</sub>). [PDF]

open access: yesEFSA J
Abstract The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authorities of the rapporteur Member State, Greece, and co‐rapporteur Member State, France, for the pesticide active substance paraffin oil are reported.
European Food Safety Authority (EFSA)   +51 more
europepmc   +2 more sources

Beyond Membranes: Recent Advances in Membrane-Free Fuel Cells. [PDF]

open access: yesChem Rec
Membraneless fuel cells (MFCs) are a promising alternative to conventional membrane‐based systems, offering simplified architectures, reduced costs, and enhanced chemical robustness. By eliminating the polymer membrane, MFCs avoid internal resistance and degradation.
Sanabria León M   +4 more
europepmc   +2 more sources

Revisiting a place‐based policy: Transformations in Northeast Brazil

open access: yesGrowth and Change, Volume 52, Issue 4, Page 2412-2436, December 2021., 2021
Abstract Despite being the second most populated region in Brazil, the Northeast has persistently accounted for a small share of national income. A well‐known attempt to develop the region was made in 1959 with the creation of SUDENE, a big push type of place‐based policy resulting in an intensification of industrial investments.
Solmaria Halleck Vega
wiley   +1 more source

LA INDUSTRIA PETROQUÍMICA Y LA CIUDAD. El desarrollo urbano de la ciudad intermedia de Barrancabermeja entre 1951 y 1989

open access: yesXIII Seminario Internacional de Investigación en Urbanismo, Barcelona-Bogotá, Junio 2021, 2022
A principios del siglo XX empresarios descubrieron la presencia de petróleo en cercanías a la hoy ciudad intermedia de Barrancabermeja, entonces Puerto de Santander, que era apenas una veintena de viviendas a la orilla derecha del río Magdalena. Luego en
Giovanny Andrés Rueda Guzmán
semanticscholar   +1 more source

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