01414nab a2200205 4500 20260520000836.0 260224s2009 xxu Explaining the flocculation of Hassi Messaoud asphaltenes in terms of structural chracteristics of monomers and aggregates nov./dic. 2009 08/06/2010 ; 08/06/2010 7 p. ; 5556-5563 Transcripción del resumen del autor. X-ray diffraction, liquid 1H and solid 13C nuclear magnetic resonance (NMR), Raman, Fourier transform infrared (FTIR), laser desorption/ionization-time of flight (LDI-TOF) mass and fluorescence spectroscopy have been used to determine structural properties of asphaltenes obtained from Hassi Messaoud crude oil. While liquid 1H- and 13C-NMR, IR, and LDI-TOF mass and fluorescence spectroscopy allow the determination of the chemical composition and structure of single asphaltene molecules, X-ray diffraction and Raman spectroscopy make it possible to asses parameters characterizing small asphaltene clusters. The proposed characterization of petroleum asphaltenes affords information that leads to better understanding of asphaltene flocculation conditions. 6 Energy & fuels 23 ARTICULO Daaou, M. 42281 Bendedouch, D. 42282 Bouhadda, Y. 42283 170790 170790 0 0 0 0 238609 BAAB BAAB 2026-03-05 200045644 0 200045644 2026-03-05 15:12:58 2026-03-05 ARTICULO