Results 101 to 110 of about 22,701 (229)

Etude par simulation en laboratoire de l'opération de viscoréduction Laboratory Simulation of the Visbreaking Process

open access: yesOil & Gas Science and Technology, 2006
Une simulation par pyrolyse du traitement de viscoréduction est mise au point afin de comprendre le comportement individuel des quatre grandes classes de composés formant les résidus lourds. Après détermination des conditions opératoires, chaque famille (
Favre A., Boulet R., Behar F.
doaj   +1 more source

AVALIAÇÃO DE ASFALTENOS PRECIPITADOS EM DIFERENTES CONDIÇÕES DE COMPOSIÇÃO, TEMPERATURA E PRESSÃO

open access: yesQuímica Nova
Asphaltenes are a heavy fraction of petroleum with the ability for self-association, a phenomenon that can occur spontaneously in the reservoirs or in any of the various stages of production and processing, depending on variations in pressure ...
Lyzette Gonçalves Moraes de Moura   +1 more
doaj   +1 more source

Chemical modification of cobalt ferrite nanoparticles with possible application as asphaltene flocculant agent

open access: yesMaterials Research, 2013
Asphaltenes can cause enormous losses in the oil industry, because they are soluble only in aromatic solvents. Therefore, they must be removed from the petroleum before it is refined, using flocculant agents. Aiming to find new materials that can work as
G. E. Oliveira   +3 more
doaj  

Study of asphaltene reaggregation in toluene/heptane mixture by dynamic and static light scattering

open access: yesPetroleum Research
This paper presents the study of the effect of multiple ultrasonic impacts on submicron asphaltene aggregates in a toluene/heptane solution, conducted with dynamic light scattering technique.
Vladimir N. Kuryakov
doaj   +1 more source

The modification of bituminous materials using tall oil pitch : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Chemical Technology at Massey University, New Zealand [PDF]

open access: yes, 2003
There are economic, occupational safety and health, and environmental advantages in using tall oil pitch (TOP) as a bitumen extender. However, before bitumen modified with TOP can be used commercially in New Zealand, it must meet the requirements of the ...
Bearsley, Sean R
core  

Interrelation between properties of viscous oils and the level of thermal flux in territories of the Volgo-Uralskiy, Western Siberian and Timano-Pechorskiy pools [PDF]

open access: yes, 2007
Fluctuations of basic properties of viscous oils of the Volgo-Uralskiy, Western Siberian and Timano-Pechorskiy oil-and-gas-bearing basins have been investigated depending on the level of thermal flux.
Yaschenko, I. G.
core  

Sifat-sifat Mekanis Aspal Yang Ditambahkan Serbuk Arang Tempurung Kelapa [PDF]

open access: yes, 2006
The objective of this research is to know mechanical properties of bitumen mixtures coconut charcoal powder. This research was done in Highway and transportation laboratory of Civil Department, Tadulako University.
Maricar, M. H. (M)   +1 more
core  

Investigating the Influence of n-Heptane versus n-Nonane upon the Extraction of Asphaltenes

open access: hybrid, 2022
Latifa K. Alostad   +5 more
openalex   +1 more source

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