Results 71 to 80 of about 6,740 (225)
Adsorption of asphaltenes on multiscale porous alumina
, 2022 International audienceAlumina catalysts are frequently used in refineries for the hydrotreatment of heavy petroleum fraction that are enriched in asphaltenes.
Lecocq, Vincent +4 more
core +1 more source
Effect of Asphaltenes and Asphaltene Dispersants on Wax Precipitation and Treatment
Colloids and InterfacesA detailed understanding of the interactions between wax and asphaltenes with other components of crude oils and the effect of treatments with paraffin inhibitors (PIs) and asphaltene dispersants (ADs), with a focus on identifying specific structure ...
Oualid M’barki +2 more
doaj +1 more source
Nanomaterials, 2019 The main objective of this work is the catalyst optimization of Fe2O3-, Co3O4-, NiO- and/or PdO- (transition element oxides—TEO) functionalized CeO2 nanoparticles to maximize the conversion of asphaltenes under isothermal conditions at low ...
Oscar E. Medina +4 more
doaj +1 more source
The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1727-1742, April 2026.Supercritical water deasphalting. Abstract The removal of sulphur from heavy fuel oil (HFO) is essential to address environmental concerns and comply with the stringent regulations imposed by the International Maritime Organization (IMO) in 2020. Previously, the acceptable limit for sulphur was 3.5 wt.%, but it was recently changed to 0.5 wt.%.
Biswajit Saha +6 more
wiley +1 more source
The Properties of Asphaltenes and Their Interaction with Amphiphiles
, 2015 The functional groups on asphaltene surfaces of two kinds of Chinese residue oil were analyzed by X-ray photoelectron spectroscopy (XPS). The ζ potential and electrophoretic mobility of asphaltene solutions and residue solutions were measured through ...
Zhaomin Li (263541) +4 more
core +1 more source
Prediction of Asphaltenes Behaviors in Reservoir during CO2 Injection [PDF]
, 2012 Asphaltenes study for its precipitation has been a regular study for a field which has its Enhanced Oil Recovery (EOR) by Water Alternating Gas (WAG) technique.
Sufian Bin Abd Hamid, Sufian
core
Interaction between asphaltenes and fatty-alkylamine inhibitor in bulk solution [PDF]
, 2018 In the present work, the mechanism of interaction between asphaltenes and a commercial fatty-alkylamine inhibitor was investigated by a combination of techniques.
Subramanian, Sreedhar +2 more
core +2 more sources
Oil & Gas Science and Technology, 2006 Six residua from different crude oils were evaluated for composition and carbon residue forming tendencies. The whole residua were evaluated for elemental composition, trace metals content, carbon residue, and specific gravity.
Schabron J. F., Speight J. G.
doaj +1 more source
Waxes in asphaltenes of crude oils and wax deposits
Petroleum Science, 2016 Composition and molecular mass distribution of n-alkanes in asphaltenes of crude oils of different ages and in wax deposits formed in the borehole equipment were studied. In asphaltenes, n-alkanes from C12 to C60 were detected.
Yulia M. Ganeeva +2 more
doaj +1 more source
Characterization of asphaltenes from processed resids [PDF]
, 1997 The current and future trend for petroleum processing is towards conversion of heavier and heavier fractions into useful products such as gasoline and diesel.
Miller, J. T. +2 more
core