Paraffinic Oil
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Análise físico-química e reológica de um óleo parafínico / Rheological and physico-chemical analysis of a paraffinic oil
Uma das principais características das parafinas de alto peso molecular é a sua baixa solubilidade na maioria dos solventes de bases parafínicas, aromáticas, naftênicas e outros solventes oleosos, quando em temperatura ambiente. Entretanto, nas condições de reservatório em que se encontram, a solubilidade destes componentes é suficientemente alta pa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/10/2012
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2. DESENVOLVIMENTO DE REVESTIMENTOS EPOXÍDICOS LUMINESCENTES COM BAIXA MOLHABILIDADE A ÓLEOS PARAFÍNICOS. / DEVELOPMENT OF LUMINESCENT COATINGS EPOXY WITH LOW WETTABILITY TO PARAFFINIC OIL.
O presente estudo tem por finalidade desenvolver um revestimento epoxídico luminescente com baixa interação interfacial a óleos parafínicos e com menor incidência de vazios ou bolhas. O desenvolvimento do revestimento proposto se deu a partir de uma resina epoxídica amplamente utilizada como revestimento de dutos pela indústria do petróleo. Inicialm
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/02/2012
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3. APLICAÇÃO DE FUNGICIDAS EM DIFERENTES ESTÁDIOS FENOLÓGICOS DA CULTURA DO MILHO (Zea mays) NO CONTROLE DE DOENÇAS
The objective of this study was to evaluate the effects of application timing of fungicides epoxiconazole + pyraclostrobin and azoxystrobin + cyproconazole in corn in the control of Phaeosphaeria leaf spot (Phaeosphaeria maydis), rust (Puccinia sorghi), Cercospora leaf spot (Cercospora zea-maydis), stain Diplodia (Diplodia macrospora) and stem rot. Three exp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/12/2011
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4. AVALIAÇÃO DA TENSÃO INTERFACIAL ENTRE PETRÓLEO PARAFÍNICO E SUPERFÍCIES COM RESINAS EPÓXI / EVALUATION INTERFACIAL TENSION BETWEEN PARAFFIN OIL AND SURFACES WITH EPOXY RESINS
Oil is a very complex chemical system, as for instance, the paraffinic type which was considered as a fluid to be evaluated in this scientific paper, trough the static interfacial tension with the surfaces of the API 5L grade B conduction pipe and the EPOXY and EPOXY M resins. The paraffinic oil produced in the 7-PIR-244D-AL well, which is located in the pro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010
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5. EVALUATION INTERFACIAL TENSION BETWEEN PARAFFIN OIL AND SURFACES WITH EPOXY RESINS / AVALIAÇÃO DA TENSÃO INTERFACIAL ENTRE PETRÓLEO PARAFÍNICO E SUPERFÍCIES COM RESINAS EPÓXI
Oil is a very complex chemical system, as for instance, the paraffinic type which was considered as a fluid to be evaluated in this scientific paper, trough the static interfacial tension with the surfaces of the API 5L grade B conduction pipe and the EPOXY and EPOXY M resins. The paraffinic oil produced in the 7-PIR-244D-AL well, which is located in the pro
Publicado em: 2010
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6. Modelagem matemÃtica e simulaÃÃo computacional do escoamento de petrÃleo parafÃnico em dutos circulares em regime laminar
The Deposition of paraffin is a serious problem in the production and transportation of heavy oil, causing a large increase in the costs of these operations. At the Transporting of paraffinic oil through pipelines subjected to low temperatures environmental, heat will be lost through the walls of the duct and the process of formation and deposition of paraff
Publicado em: 2008
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7. Desenvolvimento de sistemas a base de tensoativos para recuperação avançada de petróleo
Petroleum is a complex combination of various classes of hydrocarbons, with paraffinic, naphtenic and aromatic compounds being those more commonly found in its composition. The recent changes in the world scenario, the large reserves of heavy oils and also the lack of new discoveries of large petroleum fields are indications that, in the near future, the oil
Publicado em: 2007
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8. Estudo do desgaste e atrito de um par metálico sob deslizamento lubrificado. / Study on the wear and the friction of a metallic pair under lubricated sliding.
Este trabalho trata de um estudo experimental das respostas de desgaste e de atrito encontradas em um sistema deslizante lubrificado. Para tanto, foram realizados ensaios de deslizamento em um equipamento para ensaios de desgaste, adotando-se o dispositivo pino-contra-disco, para ensaios com movimento relativo rotativo contínuo entre as amostras, e o dispos
Publicado em: 2003
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9. Production of biosurfactants from Pseudomonas aeruginosa PA 1 isolated in oil environments
The potential production of rhamnolipid-type biosurfactants is assessed based on the development of a fermentative process with a strain of Pseudomonas aeruginosa PA1, which was isolated from oil production wastewater in the Northeast of Brazil. These production of molecules using different carbon (n-hexadecane, paraffinic oil, glycerol and babassu oil) and
Brazilian Journal of Chemical Engineering. Publicado em: 2002-04
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10. Sequential Growth of Bacteria on Crude Oil
By modification of the enrichment culture procedure three bacterial strains capable of degrading crude oil in sea water were isolated in pure culture, UP-2, UP-3, and UP-4. Strain UP-2 appears to be highly specialized for growth on crude oil in sea water since it showed strong preference for oil or oil degradation products as substrates for growth, converted
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11. Production of Proteinase on Noncarbohydrate Carbon Sources by Pseudomonas aeruginosa
Proteinase production by Pseudomonas aeruginosa was studied in medium containing noncarbohydrate materials, especially various hydrocarbons, as the sole carbon source. On heavy oil, kerosene, n-paraffinic hydrocarbon of C12, C14, or C16, and propylene glycol, the bacteria grew well and high protinase production was observed. However, production on paraffinic
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12. Effects of Temperature and Crude Oil Composition on Petroleum Biodegradation
The biodegradability of seven different crude oils was found to be highly dependent on their composition and on incubation temperature. At 20 C lighter oils had greater abiotic losses and were more susceptible to biodegradation than heavier oils. These light crude oils, however, possessed toxic volatile components which evaporated only slowly and inhibited m