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
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Mixture Effect on the Dilatation Rheology of Asphaltenes-Laden Interfaces
, 2017 Asphaltenes are a solubility class of crude oils comprising polyaromatic and heterocyclic molecules with different interfacial activities. The previously neglected effects of compositional mixture on dilatational rheology are discussed in the light of ...
Shaghayegh Darjani (3816808) +5 more
core +1 more source
Probing Asphaltenes Aggregation with Fluorescence Techniques
, 2014 Asphaltenes correspond to the fraction of oil that is insoluble in heptane but is soluble in toluene. The aggregates of asphaltene are of interest because they cause serious problems in the production of oil.
Zhang, Hui Ting
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Study of hydrogenation of petroleum asphaltenes
, 1981 Isolated petroleum asphaltenes were subjected to model thermal and catalytic hydrogenation experiments in the temperature region 300-450° C. The course of hydrogenation of the asphaltenes studied is discussed based on 1H-NMR type analysis of the starting
Gustav Šebor +4 more
core +1 more source
Comparative reactivities of coal asphaltenes during hydropyrolysis
, 1985 Comparisons have been drawn in the relative reactivities of three coal asphaltenes during hydropyrolysis. All were derived from hydrogen donor-solvent extracts of bituminous coal, but had different hydrotreatment histories and different carbon contents ...
Kemp, W. +3 more
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GEOCHEMISTRY OF PETROLEUM: ASPHALTENES AS A SOURCE OF GEOCHEMISTRY INFORMATION
, 2016 Because of physical and geochemical similarity of asphaltenes with kerogen, the study of asphaltenes provides information for applications in geochemical petroleum.
Cerqueira, Jose Roberto +5 more
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Shale Asphaltene Nanostructure and Gas Preservation: A Molecular-Level Structure-Function Relationship and Predictive Modeling. [PDF]
ACS OmegaWang L +8 more
europepmc +1 more source
REACTIVITY OF ASPHALTENES IN DIRECT COAL LIQUEFACTION.
, 1985 Analytical data for four asphaltenes isolated from different stages of a direct coal liquefaction process are reported. Long contact times under hydrocracking conditions produce asphaltenes of lower H:C ratio, lower heteroatom content and higher ...
Kemp, W. +3 more
core
Asphaltene biodegradation and transcriptome responses of hydrocarbon degradation genes in soil by a novel tolerant fungal consortium. [PDF]
Environ Sci Pollut Res IntBarrera MS +3 more
europepmc +1 more source
Improving catalytic aquathermolysis of heavy oil using a tri-metal supported zeolite catalyst. [PDF]
RSC AdvSun Y +5 more
europepmc +1 more source