R
Ronaldo Gonçalves dos Santos
Researcher at Centro Universitário da FEI
Publications - 37
Citations - 1061
Ronaldo Gonçalves dos Santos is an academic researcher from Centro Universitário da FEI. The author has contributed to research in topics: Asphaltene & Wetting. The author has an hindex of 11, co-authored 37 publications receiving 716 citations. Previous affiliations of Ronaldo Gonçalves dos Santos include State University of Campinas.
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An overview of heavy oil properties and its recovery and transportation methods
TL;DR: In this article, the main properties of high-viscosity crude oils, as well as compares traditional and emergent methods for their recovery and transportation, are discussed to highlight the oil properties that affect their flowability in the processes of recovery and pipeline transportation.
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Biomass-derived syngas production via gasification process and its catalytic conversion into fuels by Fischer Tropsch synthesis: A review
TL;DR: In this paper, a review on the aspects of the syngas production from biomass gasification and its subsequent conversion into fuels through the Fischer-Tropsch synthesis is presented.
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Contact angle measurements and wetting behavior of inner surfaces of pipelines exposed to heavy crude oil and water
TL;DR: In this paper, the role of the oil polar components on the wetting of such surfaces by crude oils through contact angle measurements in systems containing heavy oil/aqueous phase/metallic surfaces was investigated.
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Physico-chemistry properties of fuel blends composed of diesel and tire pyrolysis oil
Erick Ryoiti Umeki,Camilla Fernandes de Oliveira,Ricardo Belchior Torres,Ronaldo Gonçalves dos Santos +3 more
TL;DR: In this article, the properties of blends between petroleum diesel and pyrolytic oil obtained from the thermal degradation of tire waste were investigated, and the results showed that the resulting mixture was a complex mixture composed mainly of aromatic compounds and olefins.
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Physico-chemical properties of heavy crude oil-in-water emulsions stabilized by mixtures of ionic and non-ionic ethoxylated nonylphenol surfactants and medium chain alcohols
TL;DR: In this article, the authors describe the formulation and evaluation of concentrated, heavy oil-in-water emulsions stabilized by mixtures of ethoxylated surfactants and normal alcohols.