The investigative assault upon the enigmatic asphaltenes has recently resulted in sig nificant advances in many varied disciplines. Taken individually, each discipline exposes certain facets of asphaltenes, but each, alone, can never reveal asphaltenes from all van tages. Even seemingly narrowly focused issues such as the molecular structures of asphal tenes, or the colloidal structures of asphaltenes require a confluence of many lines of investigation to yield an understanding which differs from truth by diminishing uncer tainty. An holistic treatment of the asphaltenes is a powerful approach to evolve further their understanding. For example, examination of asphaltenes at the highest resolution yields molecular structure. A slight increase in scale probes asphaltene colloidal structure. Weaving together asphaltene studies performed at different length scales results in a fabric which envelops an encompassing vision of asphaltenes. At the same time, the interfaces of these hierarchical studies provide additional constraints on imagination, more than investi gations at individual length scales alone. These considerations shaped the timing, format, and the content of our book. The editors are very appreciative of the diligence and hard work manifest in each of the contributed chapters herein. We thank the contributing authors for making this project a success. Oliver C. Mullins Eric Y. Sheu vii CONTENTS I. Asphaltenes: Types and Sources ...................................... .
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Table of ContentsAsphaltenes in the Unifying Principles of Carbonaceous Sources; T.F. Yen. The Structure and Dynamics of Aromatic Moieties in Crude Oils and Asphaltenes; O.C. Mullins. Molecular Structure and Intermolecular Interaction of Asphaltenes by NMR, IR and ESR; R. Scotti. Physics of Asphaltene Colloids; E.Y. Sheu. Characterization of the Colloidal Structural Evolution from Stable to Flocculated State of Asphalthene and Resin Suspensions and Heavy Crudes; D. Espinat, et al. The Colloidal Structure of Coal Asphaltenes; M. Lino. Characterization and Phase Behavior of Asphaltenic Crude Oils; K.A. Ferworn, W.Y. Svrcek. Conductivity of Asphaltenes; P. Fotland. Asphaltene Colloids in Asphalt; C. Glover. Characterization of Heavy Oils Using Hydrodynamic Property Measurements; R. Baltus. Crude Oil Emulsions; J. Sjoblom. Effect of Asphaltene Solvency and Emulsion Stability in Water in Crude Oil Emulsions; P. Kilpatrick. Index.