Results 61 to 70 of about 8,294 (210)
Destabilization and Aggregation Kinetics of Asphaltenes. [PDF]
Asphaltenes are the heaviest fraction of crude oil and can precipitate due to changes in temperature, pressure or composition. It was previously shown that the precipitation and aggregation of asphaltenes is a kinetic phenomenon.
Haji Akbari Balou, Nasim
core +6 more sources
Oil & Gas Science and Technology, 2006 Afin d'élaborer un modèle thermodynamique capable de décrire la floculation des asphaltènes en s'appuyant au maximum sur la réalité physicochimique, nous nous sommes efforc In order to develop a thermodynamic model able to describe the flocculation of
Szewczyk V. +3 more
doaj +1 more source
Large‐Scale Applications of Plasma Technologies: Progresses and Challenges
High Voltage, EarlyView.ABSTRACT Plasma technologies convert electrical power into energetic electrons, ions, reactive species, radiation and heat, thereby breaking through the bottleneck of purely thermal or chemical routes and bringing impressive changes to our world. This roadmap reviews the progress and challenges of plasma technologies from a large‐scale and application ...
Pankaj Attri +51 more
wiley +1 more source
Influence of dispersing additive on asphaltenes aggregation in model system [PDF]
, 2016 The work is devoted to investigation of the dispersing additive influence on asphaltenes aggregation in the asphaltenes-toluene-heptane model system by photon correlation spectroscopy method.
Tukhvatullina, A. Z. +4 more
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Euglena sp. and its associated prokaryotic community degrade light crude oil
Journal of Phycology, Volume 62, Issue 5, Page 1417-1422, October 2026.Abstract Oil enters the environment through natural and anthropogenic sources and poses a serious threat to water and soil. We hypothesized that algae and their associated prokaryotic communities from natural oil seeps are robust systems capable of surviving and degrading anthropogenic oil spills. We isolated Euglena sp.
Michelle Kulbatzki +3 more
wiley +1 more source
Phase behavior of asphaltenes in organic media
, 2012 Unwanted phase separation of asphaltenes poses significant challenges in production and processing of heavy oils and bitumen. The analysis and prediction of asphaltene precipitation behaviors and asphaltene-diluent interactions are typically treated ...
Nikooyeh, Kasra
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Géochimie des résines et asphaltènes Geochernistry of Resins and Asphaltenes
Oil & Gas Science and Technology, 2006 Les produits lourds des huiles brutes (résines et asphaltènes) jouent un rôle important dans la genèse et l'accumulation du pétrole, ainsi que dans la mise en production par des méthodes conventionnelles ou par récupération assistée.
Tissot B.
doaj +1 more source
Asphaltenes and preasphaltenes from coal liquid extracts: feedstocks to obtain carbon mesophase
Revista Facultad de Ingeniería Universidad de Antioquia, 2014 The aim of this work was to produce mesophase by using preasphaltenes and asphaltenes from coal liquid extracts obtained in a Direct Coal Liquefaction (DCL) process.
Juan Barraza +2 more
doaj +1 more source
The Fractal Aggregation of Asphaltenes
, 2016 This paper discusses time-resolved small-angle neutron scattering results that were used to investigate asphaltene structure and stability with and without a precipitant added in both crude oil and model oil.
Michael P. Hoepfner (1873363) +3 more
core +1 more source
A Fourier-Transform Infrared (FTIR) study for Algerian asphaltenes [PDF]
, 2018 despite that the Algerian light oil contain a few quantity of asphaltenes (under to 0.7 wt %)but The problem of their deposition during the oil production and transportation is strongly suggested, this deposition of asphaltenes does not depend on the ...
Khodja, M. +3 more
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