Fatty Acid Ethyl Esters Faee
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. FATTY ACID ETHYL ESTERS FROM MICROALGAE OF Scenedesmus ecornis BY ENZYMATIC AND ACID CATALYSIS
Microalgae are an indispensable food source for the various growth stages of mollusks, crustaceans, and several fish species. Using a microalgae biomass present in the Amazonian ecosystem (Macapá-AP), we study extraction methods for fatty acid such as solvent extraction (magnetic stirring and/or Soxhlet) and/or hydrolysis (acid and/or enzymatic catalysis) f
Quím. Nova. Publicado em: 2018-01
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2. Assessment of process variables on the use of macauba pulp oil as feedstock for the continuous production of ethyl esters under pressurized conditions
ABSTRACT This study evaluated the potential of macauba pulp oil (MPO) as a feedstock for continuous ester production using ethanol under pressurized conditions. Experiments were performed in order to obtain data for the effect of process variables on ethyl ester (FAEE) and free fatty acid (FFA) conversion in a catalyst-free process. From the results, it appe
Braz. J. Chem. Eng.. Publicado em: 2017-07
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3. MICROWAVE ACTIVATION OF IMMOBILIZED LIPASE FOR TRANSESTERIFICATION OF VEGETABLE OILS
This work investigated the effect of microwave irradiation (MW) on the ethanolysis rate of soybean and sunflower oils catalyzed by supported Novozyme 435 (Candida antarctica). The effects of tert-butanol, water addition and oil:ethanol molar ratio on transesterification were evaluated under conventional heating (CH), and under optimum reaction conditions (wi
Quím. Nova. Publicado em: 2015-03
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4. Continuous catalyst-free production of esters from Jatropha curcas L. oil under supercritical ethanol
In the present study, the transesterification of Jatropha oil in a continuous catalyst-free process using supercritical ethanol was investigated. Experiments were performed in a packed-bed tubular reactor by studying the effect on the reaction of temperature, pressure, water and cosolvent (n-hexane) concentrations, keeping the oil:ethanol mass ratio fixed at
Braz. J. Chem. Eng.. Publicado em: 2014-09
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5. Synthesis, characterization and catalytic activity of mesoporous materials Al-MCM-41 in transesterification reaction of cottonseed oil / Síntese, caracterização e avaliação catalítica do aluminossilicato mesoestruturado AI-MCM-41 na transesterificação de óleos vegetais
Molecular sieves have been applied to the processing of triacylglycerols, to produce biofuels. In this context, the mesoporous catalyst Al-MCM-41 was proposed in this work as an alternative to acid heterogeneous transesterification of cottonseed oil with ethanol. This material was prepared using various Si/Al molar ratios (25, 50, 75 and 100) with reaction t
Publicado em: 2010
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6. Development and application of an analytical method for the determination of fatty acid ethyl esters (biomarkers of ethanol) in meconium samples / Desenvolvimento e aplicação de método analítico para determinação de ésteres etílicos de ácidos graxos (bioindicadores do etanol) em amostras de mecônio
O álcool é uma das substâncias psicoativas mais consumidas mundialmente e seu uso por mulheres em idade reprodutiva, em particular, tem representado grande preocupação por parte de especialistas e da sociedade em geral. Apesar dos efeitos adversos associados ao ato de ingerir bebidas alcoólicas durante a gestação ser bastante documentados e conhecido
Publicado em: 2009