Zobrazeno 1 - 6 of 6 pro vyhledávání: '"João Vitor Braun"'
1
Microwave heating and synthesis method influence in SiO2–ZrO2 mixed oxides preparation and its use as heterogeneous catalyst for biodiesel obtainment
Autor: Guilherme da Costa Espíndola, Annelise Kopp Alves, João Vitor Braun, Luiz Antonio Mazzini Fontoura, Samuel José Santos
Publikováno v: Reaction Kinetics, Mechanisms and Catalysis. 132:921-934
ZrO2–SiO2 mixed oxides were obtained by two different methods. The influence of microwave-assisted hydrothermal treatment and the differences of two different synthesis methods were investigated. The obtained materials were characterized by DSC, XR
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7334f8f0a62645b8e3e9faed9be6a63e
https://doi.org/10.1007/s11144-021-01950-9
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2
OXIDATIVE STABILITY AND COLD FILTER PLUGGING POINT OF BIODIESEL BLENDS DERIVED FROM FATS AND SOY OIL
Autor: Luiz Antonio Mazzini Fontoura, Vinícius Vendrusculo, Diogo Müller de Oliveira, Vinícius Oliveira Batista dos Santos, Rodrigo Eckert Renner, Gabriel Ferreira de Mattos, Samuel José Santos, Marcelo Volpatto Marques, João Vitor Braun, Diego Paulo Ongaratto, Fabrício Fredo Naciuk, Guilherme da Costa Espíndola, Marlon Wiedmann da Silva
Publikováno v: Química Nova, Volume: 43, Issue: 9, Pages: 1246-1250, Published: 28 OCT 2020
Química Nova, Vol 43, Iss 9, Pp 1246-1250 (2020)
Química Nova v.43 n.9 2020
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Biodiesel made from oils is rich in polyunsaturated fatty acids methyl esters, and, consequently, presents high tendency to oxidize. Biodiesel made from fats, on the other hand, is mainly comprised by saturated chains. Although it is highly stable, t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebacf0c10c3cacc001abe119f45407c6
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422020000901246&lng=en&tlng=en
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5
Development and validation of analytical methodology by GC-FID using hexadecyl propanoate as an internal standard to determine the bovine tallow methyl esters content
Autor: Marcus Seferin, Luciane Maria Pereira Passaglia, Amanda P. Napp, João Vitor Braun, Luiz Antonio Mazzini Fontoura, Marilene Henning Vainstein, Jeane Ayres, Evandro Pereira, Rosane Angélica Ligabue
Publikováno v: Journal of Chromatography B. :134-140
EN 14103:2003 and EN 14103:2011 were developed in order to determine fatty acid methyl ester (FAME) content of biodiesel. The internal standards (IS) of biodiesel include methyl heptadecanoate (MHD) and methyl nonadecanoate (MND), respectively. Howev
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7248b94bda6de5cfcd5607386aac4655
https://doi.org/10.1016/j.jchromb.2018.06.030
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6
GC-FID METHODOLOGY VALIDATION FOR THE FATTY ESTERS CONTENT DETERMINATION IN BIODIESEL WITH HEXADECYL ACETATE AS THE INTERNAL STANDARD
Autor: Evandro Pereira, Luiz Antonio Mazzini Fontoura, João Vitor Braun, Marilene Henning Vainstein, Amanda P. Napp, Marcus Seferin, Jeane Estela Ayres de Lima, Rosane Angélica Ligabue, Vinícius Oliveira Batista dos Santos
Publikováno v: Química Nova v.40 n.9 2017
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Volume: 40, Issue: 9, Pages: 1111-1116, Published: SEP 2017
Química Nova, Vol 40, Iss 9, Pp 1111-1116
Biodiesel purity expressed as fatty esters content is one of its most important quality parameters. Although several instrumental methods have been employed, gas chromatography with internal standard calibration has been the most used. Biodiesel is a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c24cdda846b49d71127c0a5ff40e25f
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422017000901111
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