• Absorption of CO2 in lyotropic liquid crystals 

      Rodriguez Fabia, Sandra; Øyen, Marita; Winter-Hjelm, Nicolai; Norrman, Jens; Lund, Reidar; Sørland, Geir; Knuutila, Hanna; Sjøblom, Johan; Paso, Kristofer Gunnar (Peer reviewed; Journal article, 2020)
      Vapor–liquid equilibria data of three poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide)/water liquid crystals (LCs) with CO2 has been obtained up to 6 bar. The investigated LCs consist of 60% (EO)3(PO)50(EO)3 ...
    • Amino-functionalized iron oxide nanoparticles designed for adsorption of naphthenic acids 

      Simonsen, Galina; Strand, Mikael; Norrman, Jens; Øye, Gisle (Journal article; Peer reviewed, 2019)
      Amino-functionalized silica-coated iron oxide (Fe3O4/SiO2 NH2/C18) magnetic nanoparticles were synthesized, and amino-surface modification was performed with a high-pressure autoclave experiment and newly developed reflux ...
    • CO2 in Lyotropic Liquid Crystals: Monoethanolamine-Facilitated Uptake and Swelling 

      Rodriguez Fabia, Sandra; Norrman, Jens; Sjøblom, Johan; Paso, Kristofer Gunnar (Journal article; Peer reviewed, 2018)
      Ternary systems consisting of amphiphilic block copolymers/water/monoethanolamine (MEA) have been studied as potential solvents for carbon capture and storage (CCS). The phase behavior of two poly(ethylene oxide)-poly(propylene ...
    • CO2 in Lyotropic Liquid Crystals: Phase Equilibria Behavior and Rheology 

      Rodriguez Fabia, Sandra; Norrman, Jens; Knuutila, Hanna K; Sjøblom, Johan; Paso, Kristofer Gunnar (Journal article; Peer reviewed, 2019)
      The CO2 absorption of liquid crystalline phases of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (Pluronic L92, (EO)8(PO)47(EO)8), monoethanolamine (MEA), and water, with a composition of 60% L92/10% ...
    • Influence of Measuring Geometry on Rheomalaxis of Macrocrystalline Wax–Oil Gels: Alteration of Breakage Mechanism from Adhesive to Cohesive 

      Rodriguez Fabia, Sandra; Fyllingsnes, Regina Lopez; Winter-Hjelm, Nicolai; Norrman, Jens; Paso, Kristofer Gunnar (Journal article; Peer reviewed, 2019)
      Rheological measurement of wax–oil gel breakage is highly susceptible to the phenomenon of adhesive breakage, hindering instrument-scale replication of cohesive breakage processes. Adhesive breakage measurements are ...
    • Influence of Microcrystalline Wax on the Properties of Model Wax-Oil Gels 

      Kurniawan, Muh; Subramanian, Sreedhar; Norrman, Jens; Paso, Kristofer Gunnar (Journal article; Peer reviewed, 2018)
      The influence of microcrystalline wax addition upon the rheological properties of model wax-oil gels is investigated. Addition of less than 1 wt % microcrystalline wax to a model oil consisting of 5 wt % macrocrystalline ...
    • Wax-Inhibitor Interactions Studied by Isothermal Titration Calorimetry and Effect of Wax Inhibitor on Wax Crystallization 

      Ruwoldt, Jost; Simon, Sebastien Charles; Norrman, Jens; Oschmann, Hans-Jörg; Sjøblom, Johan (Journal article; Peer reviewed, 2017)
      Isothermal titration calorimetry is applied to investigate the interactions of polymeric pour-point depressants (PPDs) or asphaltenes with macrocrystalline wax in a model oil system. This represents a novel approach to ...