01167nab a2200205 4500 20260520000837.0 260224s2009 xxu Dielectric properties of crude oil components nov./dic. 2009 08/06/2010 ; 08/06/2010 6 p. ; 5596-5602 Transcripción del resumen del autor. The dielectric properties of asphaltenes precipitated from four different crude oils have been studied in the frequency range of 0.01-1000 Hz by frequency domain spectroscopy (FDS). The asphaltenes were dissolved in toluene, and the dielectric response of the solutions was measured at different concentrations. To determine the precipitation point, titrations of the toluene solutions with heptane were performed and monitored by near-infrared spectroscopy. The dielectric properties of the asphaltenes were then also examined close to and well above the precipitation point. 6 Energy & fuels 23 ARTICULO Vrålstad, Heléne 42296 Spets, Øyvind 42297 Lesaint, Cédric 42298 170796 170796 0 0 0 0 238615 BAAB BAAB 2026-03-05 200045650 0 200045650 2026-03-05 15:12:59 2026-03-05 ARTICULO