A macrostructure of petroleum asphalt

Conference · Sun Jul 01 04:00:00 EDT 1990 · American Chemical Society, Division of Petroleum Chemistry, Preprints; (United States)

OSTI ID:7067486

Yen, T F ^[1]

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1. Univ. of Southern California, Los Angeles (United States)

Asphalt is largely composed of (a) asphaltenes, the dispersed phase or micellar phase, (b) resins, the peptizing agent, and (c) gas oil (composed of saturates and aromatics), the dispersing medium or the intermicellar medium. The minor constituents are organometallics (such as porphyrins), metals and polar moleculars (such as surfactants). Chemically, an asphaltene is a very complex macromolecule belonging to the class of multipolymers, and only a statistically averaged chemical structure is known. Although the asphaltene contents vary in each asphalt, there is no asphalt which does not contain asphaltenes. This paper presents a study of the macrostructure of petroleum asphalt and examines the role of asphaltenes in asphalt systems.

• OSTI ID: 7067486
• Report Number(s): CONF-900802--
• Conference Information: Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (United States) Journal Volume: 35:3
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
AROMATICS
ASPHALTENES
ASPHALTS
BITUMENS
CHEMICAL COMPOSITION
CRYSTAL STRUCTURE
DATA
DIELECTRIC MATERIALS
DISPERSIONS
ELECTRETS
INFORMATION
MATERIALS
MICELLAR SYSTEMS
MOLECULAR WEIGHT
MORPHOLOGY
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
TAR