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  • 1
    Electronic Resource
    Electronic Resource
    Thermal characteristics of crude oils treated with rheology modifiers (1997)
    Springer
    Journal of thermal analysis and calorimetry 49 (1997), S. 727-736 
    Details
    ISSN: 1572-8943
    Keywords: additive ; crude oil ; pour point ; rheology ; thermomicroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Thermal characteristics of eight crude oils and their treatment with additives were studied by differential scanning calorimetry (DSC), thermomicroscopy, viscometer and pour point tester. Different additives were found as more effective for different type of crude oils depending on the wax content. Crude oils showed a reduced pour point after treatment with additives. Effects of different additives were also discussed by analysing the DSC curves and thermomicroscopy result.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01996756
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  • 2
    Electronic Resource
    Electronic Resource
    DSC and Rheometry Investigations of Crude Oils (1999)
    Springer
    Journal of thermal analysis and calorimetry 56 (1999), S. 959-965 
    Details
    ISSN: 1572-8943
    Keywords: crude oil ; differential scanning calorimeter ; rheology ; viscometer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Thermal characteristics and rheological behaviour of eight crude oils covered a wide range of fluid composition and properties were studied by differential scanning calorimeter (DSC) and viscometry. Wax appearance temperatures (WAT) of crude oils were determined by DSC and viscometry. Good agreement is obtained between the results. The dynamic viscosity in the Newtonian temperature range of the crude oils (above 30°C) generally obeyed a simple first-order Arrhenius type of temperature dependence. Activation energies of flow in the non-Newtonian range are not uniquely defined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010159718321
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