2000
DOI: 10.1080/10916460008949877 View full text |Buy / Rent full text
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Abstract: This study explains the use of X-Ray CT (computerized tomography) as an alternative tool for cloud point determination of crude oils and dark fuel oils by showing the results for artificially prepared transparent oils. The technique is fully computerized and data gathering and analysis are achieved by taking the advantage of the processing of the CT images. In the study, the cloud points of diesel oil samples containing 5%, 10% and IS % additional wax were determined with this new technique. Results show that … Show more

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“…Since the WAT is usually the first parameter to consider when assessing how likely it is for the wax in oil to become a problem, numerous experimental techniques were adapted to evaluate this indicator, providing the accuracy of the measurements suitable for the particular tasks. Thus, a standard protocol such as ASTM D2500, which exploits visual inspection of the appearance of cloudiness in the sample subjected to the cooling process, is straightforward to implement even in the field; however, this approach suffers from poor accuracy and the operator bias during visual detection. , Other more accurate methods to measure the WAT such as cross-polarized microscopy, , differential scanning calorimetry (DSC), , viscometry, Fourier transform infrared spectroscopy, near-infrared (NIR) scattering, and so forth, , are more suitable for laboratory testing and research. However, since none of the methods were eventually found to be superior to another, it is actually advised to use more than one technique when measuring the WAT …”
Section: Introductionmentioning