Blar i NTNU Open på forfatter "Simon, Sebastien Charles"
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Lignosulfonates in Crude Oil Processing: Interactions with Asphaltenes at the Oil/Water Interface and Screening of Potential Applications
Simon, Sebastien Charles; Saadat, Marzieh; Ruwoldt, Jost; Dudek, Marcin; Ellis, Ross J.; Øye, Gisle (Peer reviewed; Journal article, 2020)The goal of this article is to test the potential application of lignosulfonates (LSs) in crude oil production and processing. Three LS samples of varying hydrophobicity and average molecular weight were considered. First, ... -
Methodology to calculate interfacial tension under electric field using pendent drop profile analysis
Mhatre, Sameer; Simon, Sebastien Charles; Sjøblom, Johan (Journal article; Peer reviewed, 2019)In this paper, we present a methodology to calculate interfacial tension of a water–oil interface under an electric field. The Young–Laplace equation, conventionally used to estimate surface/interfacial tension in axisymmetric ... -
Microcalorimetry Study of the Adsorption of Asphaltenes and Asphaltene Model Compounds at the Liquid–Solid Surface
Pradilla Ragua, Diego Camilo; Subramanian, Sreedhar; Simon, Sebastien Charles; Sjøblom, Johan; Beurroies, Isabelle; Denoyel, Renaud (Journal article; Peer reviewed, 2016)The adsorption of an acidic polyaromatic asphaltene model compound (C5PeC11) and indigenous C6-asphaltenes onto the liquid–solid surface is studied. Model compound C5PeC11 exhibits a similar type of adsorption with a plateau ... -
Microfluidic methods for studying oil recovery by aqueous floods at different wettability, temperature and pressure conditions
Saadat, Marzieh (Doctoral theses at NTNU;2021:78, Doctoral thesis, 2021)To keep up with the energy consumption in the world and recover sustainably from the currently developed oil fields, enhanced oil recovery (EOR) methods have been proven important. To be able to test the processes and new ... -
Mitigation and remediation of asphaltene precipitation, deposition and plug formation: Importance of asphaltene subfractions
Subramanian, Sreedhar (Doctoral theses at NTNU;2017:110, Doctoral thesis, 2017)Asphaltenes represent the heaviest and most polar constituent of petroleum. They consist of a wide range of molecules differing in molecular weight and functional groups. Under reservoir conditions, the asphaltenes generally ... -
Model molecules mimicking asphaltenes
Sjøblom, Johan; Simon, Sebastien Charles; Xu, Zhenghe (Journal article; Peer reviewed, 2015)Asphalthenes are typically defined as the fraction of petroleum insoluble in n-alkanes (typically heptane, but also hexane or pentane) but soluble in toluene. This fraction causes problems of emulsion formation and ... -
Naphthenic acid solubility in produced water and their interactions with divalent cations
Bertheussen, Are (Doctoral theses at NTNU;2018:259, Doctoral thesis, 2018)To keep up with the growing energy demands, the production of high acid crudes is increasing worldwide. This acidity is mainly caused by a subgroup of resins called naphthenic acids. With the increased production and ... -
New Nuclear Magnetic Resonance Approaches on the Evolution of Wax Mobility during Wax Crystallization
Savulescu, George Claudiu; Simon, Sebastien Charles; Sørland, Geir; Øye, Gisle (Peer reviewed; Journal article, 2021)Wax crystallization at low temperature is one of the main problems affecting flow assurance during oil production. Wax inhibitors, such as pour point depressants (PPDs), and crude oil components, such as asphaltenes, are ... -
Novel Nuclear Magnetic Resonance Techniques To Assess the Wax Precipitation Evolution in Crude Oil Systems
Savulescu, George Claudiu; Simon, Sebastien Charles; Sørland, Geir Humborstad; Øye, Gisle (Peer reviewed; Journal article, 2022)Wax crystallization in cold environments constitutes one of the main causes for flow assurance problems during oil production. Several techniques, such as differential scanning calorimetry (DSC) or gas chromatography/mass ... -
Oil-in-Water Emulsions Stabilized by Cellulose Nanofibrils—The Effects of Ionic Strength and pH
Aaen, Ragnhild; Brodin, Fredrik Wernersson; Simon, Sebastien Charles; Heggset, Ellinor Bævre; Syverud, Kristin (Journal article; Peer reviewed, 2019)Pickering o/w emulsions prepared with 40 wt % rapeseed oil were stabilized with the use of low charged enzymatically treated cellulose nanofibrils (CNFs) and highly charged 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized ... -
Rheological Properties of Gels Formed at the Oil−Water Interface by the Reaction between Tetrameric Acid and Calcium Ion under Flow Conditions and at the Batch Scale
Simon, Sebastien Charles; Blanco, Estefania; Gao, Bicheng; Sjøblom, Johan; Passade-Boupat, Nicolas; Palermo, Thierry; Rondon-Gonzalez, Marianna (Journal article; Peer reviewed, 2019)The interfacial reaction between ARN tetrameric acid and Ca2+, which leads to the formation of calcium naphthenate deposits, was studied using a coaxial capillary device fitted to a profile analysis tensiometer. This device ... -
Rheological properties of highly concentrated dense packed layer emulsions (w/o) stabilized by asphaltene
Kelesoglu, Serkan; Barrabino, Albert; Sørland, Geir Humborstad; Simon, Sebastien Charles; Paso, Kristofer Gunnar; Sjøblom, Johan (Journal article; Peer reviewed, 2015)Dense packed layers (DPLs) were sedimented and removed from various asphaltene stabilized w/o emulsion batches, and contained aqueous phase volume fractions (ϕ) between 0.701 and 0.808. These values are close to the ... -
Screening of Inhibition of Calcium Naphthenate Deposition in Crude Oil
Simon, Sebastien Charles; Ehret, Kim; Darcel, Pauline; Sjøblom, Johan; Passade-Boupat, Nicolas; Palermo, Thierry (Peer reviewed; Journal article, 2021)One of the initial steps in calcium naphthenate deposition is the reaction between ARN and Ca2+ leading to the formation of an interfacial gel. After growing, this gel will form calcium naphthenate deposits that are a ... -
Shape evolution of a water drop in asphaltene solution under weak DC electric fields
Mhatre, Sameer; Simon, Sebastien Charles; Sjøblom, Johan (Journal article; Peer reviewed, 2019)The microscopic shape change of a pendent water drop, surrounded by an organic solution containing asphaltenes extracted from heavy crude oil, under electric field is investigated. Weak constant DC electric fields were ... -
Solvent desorption of asphaltenes from solid surfaces
Tapio, Lene Katrin; Subramanian, Sreedhar; Simon, Sebastien Charles; Sjøblom, Johan (Journal article; Peer reviewed, 2017)The main goal of this paper is to compare the ability of different organic solvents to desorb asphaltenes from stainless steel surfaces. The asphaltenes were extracted from a North Sea crude oil by precipitation. The organic ... -
Some Compositional Viscosity Correlations for Crude Oils from Russia and Norway
Malkin, A.Ya.; Rodionova, Galina Nikolaevna; Simon, Sebastien Charles; Ilyin, S.O.; Arinina, M.P.; Kulichikhin, V.G.; Sjøblom, Johan (Journal article; Peer reviewed, 2016)The current work is based on experimental viscosity and compositional data of about 200 crude oil samples from various parts of Russia and the Norwegian continental shelf. Data analyses were performed to estimate correlations ... -
Sorption and Interfacial Rheology Study of Model Asphaltene Compounds
Pradilla Ragua, Diego Camilo; Simon, Sebastien Charles; Sjøblom, Johan; Samaniuk, Joseph; Skrzypiec, Marta; Vermant, Jan (Journal article; Peer reviewed, 2016)The sorption and rheological properties of an acidic polyaromatic compound (C5PeC11), which can be used to further our understanding of the behavior of asphaltenes, are determined experimentally. The results show that ... -
The potential of TEMPO-oxidized cellulose nanofibrils as rheology modifiers in food systems
Aaen, Ragnhild; Simon, Sebastien Charles; Brodin, Fredrik Wernersson; Syverud, Kristin (Journal article; Peer reviewed, 2019)Cellulose nanofibrils (CNFs) have been proposed for use in low-fat food products due to their availability and excellent viscosifying and gel forming abilities. As the CNFs are negatively charged, the presence of other ... -
Viscoelastic properties of interfacial lignosulfonate films and the effect of added electrolytes
Ruwoldt, Jost; Simon, Sebastien Charles; Øye, Gisle (Peer reviewed; Journal article, 2020)New evidence is presented, which confirmed interfacial gelling of lignosulfonates in presence of di- and trivalent cations. In this article, the viscoelastic properties of lignosulfonate films at the water-xylene interface ... -
Viscoelastic properties of interfacial lignosulfonate films and the effect of added electrolytes
Ruwoldt, Jost; Simon, Sebastien Charles; Øye, Gisle (Peer reviewed; Journal article, 2020)New evidence is presented, which confirmed interfacial gelling of lignosulfonates in presence of di- and trivalent cations. In this article, the viscoelastic properties of lignosulfonate films at the water-xylene interface ...