Results 21 to 30 of about 7,517 (225)

Asphaltene precipitation trend and controlling its deposition mechanism

open access: yesNatural Gas Industry B, 2022
The B oilfield is a large integrated oilfield in the Middle East. Asphaltene precipitates from crude oil and deposits on solid surfaces, affording considerable blockages of the formation, wellbore, and production equipment.
Heng Xue   +6 more
doaj   +1 more source

Molecular dynamics simulations of asphaltene aggregation: machine learning identification of representative molecules, polydispersity and inhibitor performance [PDF]

open access: yes, 2022
Molecular Dynamics simulations have been employed to investigate the effect of polydispersity on the aggregation of asphaltene. To make the large combinatorial space of possible asphaltene blends accessible to a systematic study via simulation, an ...
Emanuele, Bosoni   +7 more
core   +1 more source

Dispersion potential of asphaltene in live oil by nanoparticles

open access: yes地质科技通报, 2023
Objective In order to clarify the effect and mechanism of nanoparticles on inhibiting asphaltene precipitation in formation live oil formation under high temperature and high pressure.
Zhuanying Zhan, Jun Ni
doaj   +1 more source

Data-Driven Insights into the Fluorescence of Asphaltene Aggregates Using Extended Frenkel Exciton Model [PDF]

open access: yes, 2023
The origin of the fluorescence redshift during asphaltene aggregation remains debated due to the great diversity of asphaltene molecules, while the extended Frenkel exciton model provided a theoretical framework for studying multi-chromophore systems ...
Fang, Liu, Fangning, Ren
core   +1 more source

Investigating the Compatibility of Various Components in Marine Low-Sulfur Fuel Oil by Molecular Dynamics Simulations

open access: yesJournal of Chemistry, 2021
Asphaltene aggregation and precipitation are one of the major issues for marine low-sulfur fuel oil used on board. Many research studies have been carried out to investigate the aggregation behavior of asphaltene under different conditions, but the ...
Daping Zhou   +5 more
doaj   +1 more source

Investigation into mechanisms and kinetics of asphaltene aggregation in toluene/n-hexane mixtures

open access: yesPetroleum Science, 2019
Determining the rate of asphaltene particle growth is one of the main problems in modeling of asphaltene precipitation and deposition. In this paper, the kinetics of asphaltene aggregation under different precipitant concentrations have been studied. The
Bahram Soltani Soulgani   +2 more
doaj   +1 more source

Asphaltene-Derived Metal-Free Carbons for Electrocatalytic Hydrogen Evolution [PDF]

open access: yes, 2019
The design of new and improved catalysts is an exciting field and is being constantly improved for the development of economically, highly efficient material and for the possible replacement of platinum (Pt)-based catalysts.
Jayashree Swaminathan (2527669)   +15 more
core   +1 more source

An experimental investigation of asphaltene stability in heavy crude oil during carbon dioxide injection

open access: yesJournal of Petroleum Exploration and Production Technology, 2019
Carbon dioxide (CO2) injection is one of the most applied enhanced oil recovery methods in the hydrocarbon industry, since it has the potential to increase oil recovery significantly and can help reduce greenhouse gases through carbon storage in ...
Sherif Fakher   +3 more
doaj   +1 more source

Asphaltene-Based Porous Carbon Nanosheet as Electrode for Supercapacitor [PDF]

open access: yes, 2018
Asphaltene with high aromaticity derived from coal direct liquefaction residue is a favorable precursor to prepare new carbon materials because it is easy to polymerize or cross link.
Xiaodong Tian   +7 more
core   +1 more source

Kinetic and reaction pathway of upgrading asphaltene in supercritical water [PDF]

open access: yes, 2015
Experiments of upgrading asphaltene in Supercritical Water (SCW) were conducted in autoclaves with sealed gold tube reactors to elucidate the reaction pathway and reaction kinetics.
Li, Ning, Yan, Bo, Xiao, Xian-Ming
core   +1 more source

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