Ethylic Alcohol
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. COMPARISON BETWEEN EXPERIMENTAL AND SIMULATED RESULTS OF BIODIESEL PRODUCTION BY REACTIVE DISTILLATION AND ENERGETIC ASSESSMENT
ABSTRACT Biodiesel appears to be a likely substitute to conventional diesel. However, the main challenge has been the creation of a competitive advantage for the biodiesel production process in terms of innovation and efficiency. The reactive distillation technique for biodiesel production is possibly a key force to overcome this technological issue because
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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2. Efeito das variáveis operacionais na transesterificação metílica e etílica do óleo de soja
In the present work was carried out experimental design for the best reaction conditions of the process of transesterification by soybean oil. There were two plans for an ethanol process route and two for the route methyl, the variables employed were: time (min), speed (RPM), alcohol: oil molar ratio, percentage of catalyst, catalyst type, temperature (0C).
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/08/2011
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3. Evaluation of surface roughness of a nanofill resin composite after simulated brushing and immersion in mouthrinses, alcohol and water
This study investigated the alteration of surface roughness of the nanofill composite Filtek Z350 3M/ESPE®, caused by simulated brushing associated with the use of mouthrinses with or without alcohol. Sixty specimens were prepared and distributed into six groups: distilled water, ethylic alcohol, Listerine® Vanilla Mint, Plax® without alcohol, Oral B® wi
Materials Research. Publicado em: 2010-03
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4. Síntese de biodiesel etílico de girassol utilizando transesterificação alcalina seguido da adição on pot de H2SO4 / Biodiesel synthesis from sunflower oil through alkaline transesterification followed on pot addition of sulfuric acid
In this study, the on pot addition of sulfuric acid was studied in the transesterification process of sunflower oil, using ethanol and methanol, by basic catalysis (NaOH or KOH). That addition implicated in successfully separation of FAEEs from FAMEs/glycerin phases due to soap breaking. The on pot additions yield free fatty acids and salt (Na2SO4 or K2SO4).
Publicado em: 2010
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5. URBANIZAÇÃO E (DES) RURALIZAÇÃO DA AGRICULTURA FAMILIAR E SEUS ATORES
The results reached by the production of the ethylic alcohol from sugar cane culture development as an alternative of the substitution to the gasoil, brought about, with its consolidation, considerable changes in the national agriculture scene. The familiar agriculture and its actors, since then, suffer changes in their characteristics and dynamic, which has
Publicado em: 2009
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6. Extraction of pequi pulp oil (Caryocar brasiliense): influence of the operational variables / ExtraÃÃo do Ãleo da polpa de pequi (Caryocar brasiliense): influÃncia das variÃveis operacionais
The use of pequi oil in industrial products has led to the study by processes alternative to handmade extraction. The objective is to arrive adequate to its extraction and which warrants the quality of the oil. In this essence, it is necessary to study the influences of the variables on the yield and quality of the extraction of pequi pulp oil. In chapter II
Publicado em: 2007
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7. Efeito protetor do magnésio no choque térmico e estresse pelo etanol em leveduras Saccharomyces cerevisiae / Protective effect of Magnesium in yeast Saccharomyces cerevisiae under heat shock and ethanolic stress
The aim of this study was to investigate the protective effect of the ion magnesium in cells of Saccharomyces cerevisiae under thermal and ethanolic stresses. In the industrial process of fermentation the yeasts might be submitted either to thermal stress, originated from the heat produced by fermentation, or to ethanol stress, originated from the damages ef
Publicado em: 2007
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8. Descontaminação de canetas odontológicas de alta rotação em unidades básicas de saúde no município de Goiânia
Infection control is considered an essential matter for the safety of patients and professionals The high speed handpiece is a frequently used device during its function it produces aerosols which potentiales microbial dissemination Besides its decontamination is quite polemic According to previous survey carried through in the main health care providers of
Publicado em: 2006
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9. Descontaminação de canetas odontológicas de alta rotação em unidades básicas de saúde no município de Goiânia
Infection control is considered an essential matter for the safety of patients and professionals The high speed handpiece is a frequently used device during its function it produces aerosols which potentiales microbial dissemination Besides its decontamination is quite polemic According to previous survey carried through in the main health care providers of
Publicado em: 2006
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10. Avaliação do ciclo de vida do álcool etílico hidratado combustível pelos métodos EDIP, exergia e emergia / Life cycle assessment of hydrated ethylic alcohol fuel by EDIP, exergy and emergy methods
One of the most integrated, complete and efficacious means for the environmental management of productive activities is based on the life cycle of the product, whose main tool is the life cycle assessment. The assessed product is the hydrated ethylic alcohol fuel because of the environmental improvement possibilities during its life cycle, an alternative for
Publicado em: 2005
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11. Avaliação exergética dos efluentes do processo industrial do álcool / Exergetic assessment of effluents in the industrial alcohol process
In the production of ethyl alcohol as a fuel, the sugar and alcohol industry captures large volumes of water for steam generation, for cooling and as part of the process, generating large amounts of effluents. Using the energy produced by the burning of bagasse in the furnace for the transformation of water into steam, the industry generates its own electric
Publicado em: 2005
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12. "Efeitos da inoculação microbiana da silagem pré-secada de alfafa sobre a fermentação no silo, digestibilidade e desempenho produtivo de vacas leiteiras" / "Effects of microbial inoculation of alfalfa haylage on silo fermentation characteristics, digestibility and performance of lactating dairy cows"
The objective of this study was to evaluate the effects of microbial inoculant Silobac® (L. plantarum, P. pentosaceus) on twenty-two big bales of alfalfa haylage, eleven treated with inoculant. Alfalfa crop was harvested at middle bloom stage and conditioned in bales about 600 kg capacity and covered with white tube plastic film. Silage was sampled to proce
Publicado em: 2002