caa a22 4500 463189795 CHVBK 20180406164905.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10973-006-8254-2 doi (NATIONALLICENCE)springer-10.1007/s10973-006-8254-2 Comparative methods in the determination of wax content and pour points of crude oils [Elektronische Daten] [M. Kök, J. Letoffe, P. Claudy] In this research, differential scanning calorimetry (DSC) and gas chromatography is used to determine the wax content of fourteen crude oils of different sources. Different empirical equations were applied to compare the wax content of crude oils. For the fourteen crude oil samples with the wax content ranging from 7.5 to 43.8 mass%, it was observed that the results of empirical equations were in good agreement with those determined by DSC and GC. Accordingly, a correlation between ASTM pour point and the temperature at which 2 mass% of wax has precipitated out from crude oil is developed. Springer Science+Business Media, LLC., 2007 correlations nationallicence crude oil nationallicence DSC nationallicence empirical equations nationallicence gas chromatography nationallicence thermal effect nationallicence wax content nationallicence Kök M. Department of Petroleum and Natural Gas Engineering, Middle East Technical University, 06531, Ankara, Turkey aut Letoffe J. Laboratoire de Thermodynamique Appliquée-UPRESA CNRS 5079, INSA Lyon Bat. 401, 69621, Villeurbanne Cedex, France aut Claudy P. Laboratoire des Matériaux Organiques-Propriétés Spécifiques, UPR CNRS 9031, BP 24, 69390, Vernaison, France aut Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/3(2007-12-01), 827-831 1388-6150 90:3<827 2007 90 10973 https://doi.org/10.1007/s10973-006-8254-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8254-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kök M. Department of Petroleum and Natural Gas Engineering, Middle East Technical University, 06531, Ankara, Turkey aut NATIONALLICENCE 700 1- Letoffe J. Laboratoire de Thermodynamique Appliquée-UPRESA CNRS 5079, INSA Lyon Bat. 401, 69621, Villeurbanne Cedex, France aut NATIONALLICENCE 700 1- Claudy P. Laboratoire des Matériaux Organiques-Propriétés Spécifiques, UPR CNRS 9031, BP 24, 69390, Vernaison, France aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/3(2007-12-01), 827-831 1388-6150 90:3<827 2007 90 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer