Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Cesar Augusto Moraes de Abreu"'
Autor:
Nathalia Cecília do Rego Lemos, Nelson Joaquim Ribeiro Neto, Nelson Medeiros de Lima Filho, Cesar Augusto Moraes de Abreu, Luccas de Moura Ribeiro, E. B. M. Medeiros, Júlia Gabriela da Silva, Santulla Leide Bernardes Vasconcelos Carvalho, Ayrton de Souza Wanderley, Ivana Taciana de Almeida Simões, Henrique Macedo Baudel
Publikováno v:
Chemical Engineering Research and Design. 174:11-18
Acid hydrolysis and hydrogenation reactions were capable to convert xylose obtained from biomass materials using heterogeneous catalysts based on Ni and Ru. Xylose was extracted from sugar cane bagasse using dilute acid sulfuric solutions, and then x
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04f2938de30b4ad3312f76efacd50887
https://doi.org/10.1016/j.cherd.2021.07.025
https://doi.org/10.1016/j.cherd.2021.07.025
Publikováno v:
Alternative Energies and Efficiency Evaluation ISBN: 9781839698279
The effects of mass transfer were quantified for the effective performance of mixtures between partially miscible phases, or for the promotion of their separations. To consolidate the analysis of heterogeneous liquid–liquid processes, variations in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97e4aa804d1fe36ab0f3c73a07fe5454
https://doi.org/10.5772/intechopen.98926
https://doi.org/10.5772/intechopen.98926
Autor:
Cesar Augusto Moraes de Abreu, E. B. M. Medeiros, Nelson Medeiros de Lima-Filho, Jackson H. S. Santos, Jadiete T. S. Gomes, Mohand Benachour
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 131:139-151
The hydrogenation of the oxalic acid was evaluated with a ruthenium micro-mesoporous catalyst (5 wt%/activated carbon, 710 m2 g−1, 0.39 cm3 g−1), at 120 °C–150 °C under 80.0 bar in a slurry reactor, for the development of glycolic acid and et
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c31942be9161de559c4ffab30365b23f
https://doi.org/10.1007/s11144-020-01843-3
https://doi.org/10.1007/s11144-020-01843-3
Publikováno v:
Brazilian Journal of Petroleum and Gas. 14:001-006
The present research evaluates the operational status of hydrodesulphurization oil processing based on the monitoring of the feed oil filtration system. The system is identified as a prognostic module, designed to predict the remaining catalyst activ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6103385d67dc87cc166eee6edd329e2
https://doi.org/10.5419/bjpg2020-0001
https://doi.org/10.5419/bjpg2020-0001
Autor:
Cesar Augusto Moraes de Abreu, Augusto Knoelchemann, Marcos Augusto Moraes Silva, Deivson C. S. Sales
Publikováno v:
Processes
Volume 9
Issue 8
Processes, Vol 9, Iss 1479, p 1479 (2021)
Volume 9
Issue 8
Processes, Vol 9, Iss 1479, p 1479 (2021)
A comparative evaluation of alternative methane reforming processes as an option to steam reforming was performed by carrying out simulations of operations in a fixed bed reactor with a Ni (4.8 wt.%/γ-Al2O3) catalyst at 1023 K under 1.0 bar. Methane
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5a58085cc39681682d6298ea8c6091d
Autor:
Jadiete T. S. Gomes, E. B. M. Medeiros, Nelson Medeiros de Lima Filho, Lucas C.D. Coelho, Cesar Augusto Moraes de Abreu, Rui Faria, Jackson H. S. Santos, Alírio E. Rodrigues
Publikováno v:
Results in Chemistry, Vol 2, Iss, Pp 100063-(2020)
An analytical method was developed using high performance liquid chromatography with matrix of UV-VIS diodes to quantify mono, di and triacetin obtained from the acetylation of glycerol with acetic anhydride catalyzed by sodium acetate. The separatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22eafa90b22c52fedd308fdae35bdc92
http://www.sciencedirect.com/science/article/pii/S2211715620300412
http://www.sciencedirect.com/science/article/pii/S2211715620300412
Autor:
David Merino, Oihane Sanz, Nelson Medeiros de Lima Filho, Cesar Augusto Moraes de Abreu, André T.S. Ribeiro, Rodrigo A.C. Bartolomeu, Mario Montes, Laísse C.A. Maranhão, Antonio O. S. Silva, Victor V.L. Bezerra, Giovanna Machado, Luciano C. Almeida
Publikováno v:
Fuel. 231:157-164
This article highlights the formulation and evaluation of Co-Ru catalysts on silica used in Fischer-Tropsch synthesis. An acid treatment of the support associated with the addition of sucrose as a chelating agent was employed. The six formulated cata
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::259f26d0dba6792eda5628294740ed16
https://doi.org/10.1016/j.fuel.2018.05.064
https://doi.org/10.1016/j.fuel.2018.05.064
Publikováno v:
Brazilian Journal of Petroleum and Gas. 12:91-97
This work explores the catalytic performance of a 2% ruthenium carbon (Ru/C) catalyst in the low temperature water-gas shift reaction (WGSR). The catalyst synthetized was characterized with X-ray diffraction (XRD) and specific surface area (BET) meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d4cc9a076108ef44651bf8fbec13a50
https://doi.org/10.5419/bjpg2018-0009
https://doi.org/10.5419/bjpg2018-0009
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 123:573-583
The kinetics of the water–gas change reaction was evaluated with formulated ruthenium catalysts (Ru 2 wt%/TiO2, Ru 2 wt%/Al2O3) in a fixed bed reactor with a gas mixture containing 15% CO + Ar at temperatures ranging from 453 to 573 K under atmosph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83692613f24aadbc509463a14f7b4d49
https://doi.org/10.1007/s11144-018-1347-7
https://doi.org/10.1007/s11144-018-1347-7
Autor:
Cesar Augusto Moraes de Abreu, Deivson C. S. Sales, Suzana Pedroza da Silva, Alexandre Ricardo Pereira Schuler, Cesar A. Pimentel de Abreu
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 123:529-542
Alkaline transesterifications (methanolysis, ethanolysis) of vegetable oils (soybean, sunflower) were conducted under conditions selected by an experimental design, producing biodiesels (fatty methyl esters 97.5 wt%; fatty ethyl esters 96.7 wt%) with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f75151859982490020683b0470c7be0
https://doi.org/10.1007/s11144-017-1322-8
https://doi.org/10.1007/s11144-017-1322-8