Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Karla P. Rainha"'
Autor:
Murilo de O. Souza, Karla P. Rainha, Eustáquio Vinícius R. Castro, Maria Tereza W. D. Carneiro, Rafael de Q. Ferreira
Publikováno v:
Química Nova, Vol 38, Iss 7, Pp 980-986 (2015)
AbstractThe purpose of this study was to evaluate the best operating conditions of ICP OES for the determination of Na, Ca, Mg, Sr and Fe in aqueous extract of crude oil obtained after hot extraction with organic solvents (ASTM D 6470-99 modified). T
Externí odkaz:
https://doaj.org/article/db808125230b45c3bb5e073b54ffe96d
Autor:
Natã C.L. Madeira, Luiz S. Chinelatto, Sonia Maria Cabral de Menezes, Janur Mendonça, Christiane F. de C. Porto, Wanderson Romão, Fernanda E. Pinto, Karla P. Rainha, Paulo R. Filgueiras, Álvaro Cunha Neto, Valdemar Lacerda
Publikováno v:
Energy & Fuels. 34:5679-5688
Aggregation and precipitation of asphaltenes are relevant concerns during the extraction and processing of petroleum because of the severe damage they cause to the equipment for crude oil transport...
Autor:
M.F.F. Lelis, Thaiany S. C. Bressiani, Karla P. Rainha, Júlia Raquel P. Pereira, I.L. Santana, Paulo Rogério Garcez de Moura, Mayara Lobo de Oliveira
Publikováno v:
Revista Virtual de Química. 12:356-367
O presente trabalho tem o objetivo de avaliar as contribuicoes da Aprendizagem Baseada em Projetos (ABP) no contexto do Ensino Superior em Quimica (UFES), na disciplina de Tratamento de Residuos Solidos e Meio Ambiente. Esta metodologia de ensino pos
Autor:
Eustáquio V.R. Castro, Betina P.O. Lovatti, Karla P. Rainha, Rayza R.T. Rodrigues, Julia Tristão do Carmo Rocha, Paulo R. Filgueiras
Publikováno v:
Analytical Letters. 52:2914-2930
American Petroleum Institute (API) gravity is an important parameter in the crude oil industry and the nitrogen compounds are related to the toxic effects of the oil in refineries and the e...
Autor:
Karla P. Rainha, Paulo R. Filgueiras, Betina P. Oliveira, Samantha R.C. Silva, Márcia H.C. Nascimento, Eustáquio V.R. Castro
Publikováno v:
Fuel. 234:643-649
Flash point (FP) and Reid vapor pressure (RVP) are physicochemical properties of crude oil that are used as safety and environmental parameters. In this paper, we propose a methodology for estimating the FP and RVP for crude oil by means of detailed
Autor:
Márcia H.C. Nascimento, Betina P.O. Lovatti, Paulo R. Filgueiras, Eustáquio V.R. Castro, Karla P. Rainha, Álvaro Cunha Neto, Emanuele Catarina da Silva Oliveira
Publikováno v:
Journal of Chemometrics. 34
Autor:
Felipe Cunha Fonseca Nascimento, Karla P. Rainha, Larissa Aigner da Vitória, Eustáquio V.R. Castro, Joseli Silva Costa, Thaina Cristal Santos, Verônica Santos de Morais, Bruno Mariani Ribeiro
Publikováno v:
O Ensino de Química 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86b3dc7d35dc7bca504be462338029ea
https://doi.org/10.22533/at.ed.90619260416
https://doi.org/10.22533/at.ed.90619260416
Autor:
Luiza Valli Vieira, Paulo R. Filgueiras, Karla P. Rainha, Geisamanda Pedrini Brandão, Maria Tereza Weitzel Dias Carneiro, Eustáquio V.R. Castro
Publikováno v:
Microchemical Journal. 124:26-30
In this paper, the Ni and V contents in 64 crude oil samples (API gravity between 10 and 40) from four oil fields in the Espirito Santo sedimentary basin, located on the southeastern Brazilian coast, were quantified using atomic absorption spectromet
Autor:
Samantha R.C. Silva, Natália A. Portela, Paulo R. Filgueiras, Julia Tristão do Carmo Rocha, Wanderson Romão, Cristina M. S. Sad, Betina P.O. Lovatti, Karla P. Rainha, Eustáquio V.R. Castro
Publikováno v:
Fuel. 254:115670
The petroleum industry has the interest to know the physicochemical properties of the crude oil before its exploration in order to estimate its costs with processing, transportation, storage and refining. The profile of the recovered oil is determine