Residue Petroleum
Mostrando 1-12 de 35 artigos, teses e dissertações.
-
1. Estudo da incorporação de resíduos da industria calçadista em misturas asfálticas
ABSTRACT The footwear industry discards residues in its most diverse phases of production, the Ethylene Vinyl Acetate (EVA) being one of them. This work proposes an evaluation of the use of EVA’s residue discarded by the footwear industry of Campina Grande city in asphalt mixtures. The modified asphalt binder was characterized by penetration test, softenin
Matéria (Rio J.). Publicado em: 18/10/2018
-
2. Assessment of human health risk associated with the presence of pesticides in chicken eggs
Abstract The presence of pesticides in the environment is highly toxic to environment and human health. Aim of the study was determination, quantification and assessment of associated health risk due to presence of pesticide residues in chicken eggs using high pressure liquid chromatography. HPLC method was successfully employed and validated. From collected
Food Sci. Technol. Publicado em: 09/03/2017
-
3. L-(+)-Lactic acid production by Lactobacillus rhamnosus B103 from dairy industry waste
ABSTRACT Lactic acid, which can be obtained through fermentation, is an interesting compound because it can be utilized in different fields, such as in the food, pharmaceutical and chemical industries as a bio-based molecule for bio-refinery. In addition, lactic acid has recently gained more interest due to the possibility of manufacturing poly(lactic acid),
Braz. J. Microbiol.. Publicado em: 2016-09
-
4. USE OF A LOW-COST TEMPLATE-FREE ZSM-5 FOR ATMOSPHERIC PETROLEUM RESIDUE PYROLYSIS
To understand the physicochemical properties and catalytic activity during the pyrolysis of atmospheric petroleum residue, a template-free ZSM-5 zeolite was synthesized using a direct method without additional seeds or an organic structure director and compared with conventionally synthesized ZSM-5. The crystallinities of the two zeolites were evaluated by X
Quím. Nova. Publicado em: 2016-04
-
5. COMPARISON BETWEEN ASPHALTENES (SUB)FRACTIONS EXTRACTED FROM TWO DIFFERENT ASPHALTIC RESIDUES: CHEMICAL CHARACTERIZATION AND PHASE BEHAVIOR
Asphaltenes are blamed for various problems in the petroleum industry, especially formation of solid deposits and stabilization of water-in-oil emulsions. Many studies have been conducted to characterize chemical structures of asphaltenes and assess their phase behavior in crude oil or in model-systems of asphaltenes extracted from oil or asphaltic residues
Quím. Nova. Publicado em: 2016-01
-
6. ESTUDO EXPERIMENTAL DA COMBUSTÃO DO GLP E GLICEROL RESIDUAL DERIVADO DA PRODUÇÃO DE BIODIESEL EM MEIOS POROSOS RADIANTE / EXPERIMENTAL STUDY OF LPG COMBUSTION OF GLYCEROL AND RESIDUAL DERIVED FROM BIODIESEL PRODUCTION IN RADIANT POROUS MEDIA
The increasing production of biodiesel has caused increased production of residue glycerol. The large amount of glycerin (our glycerol) in the market causes a surplus unusable commercially and industrially, which should give a correct destination. At this point, the porous combustion is characterized by burning within an inert medium, to the pollutants reduc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/05/2012
-
7. Modelagem e simulação do processo de destilação molecular centrífuga reativa : desenvolvimento, avaliação e aplicação para o "Upgrading" de frações pesadas de petróleo / Modeling and simulation of the centrifugal reactive molecular distillation : development, assessment and application to upgrade high-boiling-point petroleum fractions
O processo de destilação molecular reativa, no qual ocorre o acoplamento de destilação molecular e reação química simultaneamente, pode ser qualificado como um processo híbrido e também como um processo intensificado, dada a configuração do equipamento e as condições operacionais que viabilizam a implementação de alto vácuo (<50 Pa), permitin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
-
8. Biosurfactants production by yeasts using soybean oil and glycerol as low cost substrate
Biosurfactants are bioactive agents that can be produced by many different microorganisms. Among those, special attention is given to yeasts, since they can produce many types of biosurfactants in large scale, using several kinds of substrates, justifying its use for industrial production of those products. For this production to be economically viable, the
Brazilian Journal of Microbiology. Publicado em: 2012-03
-
9. Tratamento da água de purificação do biodiesel utilizando eletrofloculação
Biodiesel was created as a solution for a great economic and enviromental problem of petroleum, a resource with sustainable characteristics. But its production still needs optimization, because it uses a lot of water and generates a large volume of this residue, which appears improper to disposal without correct treatment. This work propose an economic, viab
Química Nova. Publicado em: 2012
-
10. Avaliação de tecnologia para redução da viscosidade de resíduos pesados de petróleo utilizando laser / Assessing technology for reducing the viscosity of heavy petroleum residues using laser
The use of infrared radiation produced by a CO2 laser in visbreaking of heavy fractions of petroleum was assessed. The main criterion used to evaluate the technology was to compare the viscosities of atmospheric distillation residues before and after being irradiated under different operating conditions of the laser. A suitable profile for comparison was dev
Publicado em: 2011
-
11. Projeto e construção de um reator para produção de nanoestruturas de carbono : síntese e caracterização de esferas de carbono produzidas a partir de resíduo da destilação molecular de petróleo / Design and construction of a reactor for carbon nanostructures production : synthesis and characterization of carbon spheres from petroleum molecular distillation residue
Após a descoberta dos nanotubos de Carbono, o estudo de novos materiais de Carbono surgiu como um fascinante assunto de pesquisa para a comunidade científica. As propriedades excepcionais destes materiais os fazem potenciais aditivos para lubrificantes, suportes para catalisadores, materiais para estocagem de energia, e materiais para dispositivos nanoelet
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/10/2010
-
12. Estudo experimental e modelagem matemática da separação de asfaltenos e óleos lubrificantes provenientes do resíduo de petróleo por desasfaltação supercrítica / Experimental and mathematical modeling study of the separation of asphaltens and lube oil from the residuum of petroleum for supercritical desasphalting
Atualmente, o Brasil tem uma grande demanda do consumo de asfalto, devido à reconstrução e à construção de novas estradas. O investimento em tecnologia para garantir esta demanda, não somente no aspecto quantitativo, mas também no aspecto qualitativo do asfalto é imprescindível. Este projeto tem por objetivo geral o estudo em escala piloto, do proc
Publicado em: 2010