• Chemical Modification of Paraffin Wax-Oil Gels 

      Kurniawan, Muh (Doctoral theses at NTNU;2019:222, Doctoral thesis, 2019)
      Paraffin wax crystallized in petroleum production line is well known in causing flow assurance challenges. Wax crystallization behavior is influenced by its interaction with other components co-exist in petroleum fluids. ...
    • 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 ...
    • Influence of Wax Inhibitor Molecular Weight on Solution Crystallization and Rheology of Monodisperse Waxes 

      Kurniawan, Muh; Ruwoldt, Jost; Norrman, Jens; Paso, Kristofer Gunnar (Peer reviewed; Journal article, 2021)
      Molecular weight fractionation via stepwise precipitation or chain scission is performed on four pour point depressant polymers to study the pour point reduction mechanism. An homologous series of model oils is prepared ...
    • Influence of wax inhibitor molecular weight: Fractionation and effect on crystallization of polydisperse waxes 

      Ruwoldt, Jost; Kurniawan, Muh; Sørland, Geir; Simon, Sebastien Charles; Sjøblom, Johan (Journal article; Peer reviewed, 2019)
      The influence of wax inhibitor molecular weight on wax crystallization was investigated in three steps: (1) Wax inhibitor fractionation via stepwise precipitation or ultrasonic disintegration, (2) characterization of ...
    • Non-linear dependency of wax appearance temperature on cooling rate 

      Ruwoldt, Jost; Kurniawan, Muh; Oschmann, Hans-Jörg (Journal article, 2018)
      The Wax Appearance Temperature (WAT) is usually the first parameter to consider, when assessing whether paraffin wax contained in the crude oil can become an issue during production. As such, correct determination of the ...
    • Pour point depressant efficacy as a function of paraffin chain-length 

      Kurniawan, Muh; Norrman, Jens; Paso, Kristofer Gunnar (Peer reviewed; Journal article, 2022)
      Pour point depressant (PPD) activity mechanisms include solubilization, morphology alteration, and steric/entropic repulsion. A wealth of complex intermolecular interactions governs PPD efficacies in real crude compositions. ...