Results 51 to 60 of about 781 (132)

Asphaltene Deposition Modeling during Natural Depletion and Developing a New Method for Multiphase Flash Calculation [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2016
The specific objective of this paper is to develop a fully implicit compositional simulator for modeling asphaltene deposition during natural depletion.
Gholamreza Fallahnejad, Riyaz Kharrat
doaj   +1 more source

Triblock Polymer Engineering Enables Hydration‐Rich, High‐Performance, Fouling‐Resistant Interfaces

open access: yesAdvanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
A molecularly engineered triblock polymer (PHZ) rapidly reorganizes into a hydration‐rich interfacial layer on diverse surfaces, strongly suppressing hydrophobic attraction and fouling. The triblock polymer provides robust energy and steric barriers to oily foulants, enabling high‐performance antifouling at ultralow dosage.
Chenyu Qiao   +6 more
wiley   +1 more source

Experimental Investigation and Modeling of Asphaltene Precipitation Due to Gas Injection [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2012
Asphaltene instability is one of the major problems in gas injection projects throughout the world. Numerous models have been developed to predict asphaltene precipitation; The scaling equation is an attractive tool because of its simplicity and not ...
Siyamak Moradi   +4 more
doaj  

Nanoarchitectonics of Porous Carbons Templated by Inorganic Metal Oxides and Alkali Metal Salts for Energy and Environmental Applications

open access: yesAdvanced Science, Volume 13, Issue 30, 28 May 2026.
This review explores inorganic metal oxides and metal salt nanoparticles templated porous carbons, highlighting their synthesis, structural features, and performance in energy and environmental applications. It critically compares template types, porosity control, and functional outcomes across recent literature.
Gurwinder Singh   +8 more
wiley   +1 more source

Supercritical water deasphalting and desulphurization of heavy fuel oil with comprehensive molecular‐level analysis and techno‐economic analysis

open access: yesThe 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

Critical Review on the Molecular Behavior of Surfactants at the Oil–Water Interface During Oil Displacement

open access: yesEnergy Science &Engineering, Volume 14, Issue 3, Page 1626-1662, March 2026.
This review systematically explores the molecular behavior of diverse surfactants (anionic, cationic, nonionic, amphoteric) at the oil–water interface through molecular dynamics simulations. It highlights their roles in reducing interfacial tension, altering interfacial structure, and enhancing oil recovery efficiency.
Zhaowei Hou   +10 more
wiley   +1 more source

Bitumen Emulsion—Mineral Surface Interactions: An NMR Study on the Interface Layer Composition

open access: yesMagnetic Resonance in Chemistry, Volume 64, Issue 2, Page 170-178, February 2026.
We describe a 1H NMR approach to study the interface layer formed by a specified bitumen emulsion in the presence of non‐magnetic as well as magnetic minerals. This approach is based on the consecutive flushing off “bulky” components of the bitumen emulsion and the following extraction of the surface layer material, which can then be analyzed by NMR ...
Andrei Filippov   +2 more
wiley   +1 more source

A new thermodynamic model for the prediction of asphaltene precipitation in crude oil [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2010
It has been proved that asphaltene precipitation is a difficult problem to define and study. Precipitation of these complex and heavy organic compounds can cause serious problems in crude oil production and transportation, residual oil processing and ...
Alireza Fazlali   +3 more
doaj  

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

Correlation between Asphaltene Stability in n-Heptane and Crude Oil Composition Revealed with Chemical Imaging

open access: yesAdsorption Science & Technology, 2014
Five crude oil samples with different physical properties have been studied with respect to asphaltene stability. The attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopic imaging approach of n-heptane-induced precipitation has ...
Anton A. Gabrienko   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy