Results 121 to 130 of about 20,919 (276)
Phase behavior in petroleum fluids (A Detailed Descriptive and Illustrative Account) [PDF]
arXiv, 2017 This chapter presents a descriptive and illustrative account of phase behavior in the seven naturally occurring petroleum fluids and ties all the known eleven phase-transition concepts in a unified narrative. The figures and tables contained in this report are designed so that they could effectively support the discussion about molecular make-up of ...
arxiv
AVALIAÇÃO DE ASFALTENOS PRECIPITADOS EM DIFERENTES CONDIÇÕES DE COMPOSIÇÃO, TEMPERATURA E PRESSÃO
Química NovaAsphaltenes 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
Materials 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
Data in Brief, 2020 A better understanding of the behavior of asphaltenes is paramount for improving processes related to heavy crude oil, such as transport. Previous research has studied its aggregation [1], as well as its average chemical structure [2].
Manuel Roa, Ivan Amaya, Rodrigo Correa
doaj
Aspects of asphaltene aggregation obtained from coarse-grained molecular modeling
, 2015 We have performed a molecular-simulation-based study to explore some of the underlying mechanisms of asphaltene aggregation. The daunting complexity of the crude oil + asphaltene system precludes any type of meaningful molecular simulation unless some ...
Galindo, A +6 more
core +2 more sources
Investigation of Asphaltene Stability in the Iranian Crude Oils [PDF]
Iranian Journal of Chemical Engineering, 2008 The influence of different factors on the asphaltene stability in three iranian crude oils was evaluated. Compositional studies and structural characterization of resins and asphaltenes were carried out in order to study a possible relationship between ...
doaj
Oil & Gas Science and Technology, 2006 Crude oils contain a variety of components - including asphaltenes - that can adsorb onto mineral surfaces and alter wetting. What distinguishes the asphaltenes from other constituents of an oil is their tendency to aggregate and even separate from the ...
Buckley J. S.
doaj +1 more source
The Viscosity of Asphaltene- Containing Oil [PDF]
, 1988 Imperial Users ...
Odubanjo, Oluwateleola +1 more
core +42 more sources
Questionify gamification in education [PDF]
, 2018 In the education industry, lecturers are finding ways to improve students’ concentrations and grades by using smart devices to track students’ assignment or tutorial progress.
Che Abdul Rani, Mohamad Firdaus +3 more
core +2 more sources
Curated dataset of asphaltene structures
Data in BriefAsphaltenes, a distinct class of molecules found in crude oil, exhibit insolubility in nonpolar solvents like n-heptane but are soluble in aromatic solvents such as toluene and benzene. Understanding asphaltenes is crucial in the petroleum industry due to their detrimental effects on oil processing, resulting in significant economic losses and ...
Madison Franke +4 more
openaire +3 more sources