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Title Characterization of heavy residuum by a small angle x-ray scattering technique
Creator/Author Kim, H. ; Long, R.B.
Publication Date1977 Feb 01
OSTI IdentifierOSTI ID: 7215874
Other Number(s)CODEN: ACPCA
Resource TypeConference
Specific TypeJournal Article
Resource RelationPrepr., Div. Pet. Chem., Am. Chem. Soc. ; Vol/Issue: 22:1; American Chemical Society meeting; 29 Aug 1976; San Francisco, CA, USA; See CONF-760897--P2
Research OrgExxon Research and Engineering Co., Linden, NJ
Subject023000 -- Petroleum-- Properties & Composition; ;ASPHALTENES-- MOLECULAR STRUCTURE; COLLOIDS;MOLECULAR WEIGHT;SMALL ANGLE SCATTERING;X RADIATION
Related SubjectASPHALTS;BITUMENS;DISPERSIONS;ELECTROMAGNETIC RADIATION;IONIZING RADIATIONS;ORGANIC COMPOUNDS;OTHER ORGANIC COMPOUNDS;RADIATIONS;SCATTERING;TAR
Description/Abstract Asphaltenes from several heavy residua were investigated.^It was found that Jobo asphaltenes exhibit approximately the same radius of gyration in all the solvents in which they were dissolved and that the radius of gyration is independent of concentration.^This runs counter to expectations which were that particle size should increase at higher concentrations due to association.^Further, it was expected that poor solvents would show a larger particle size than good solvents for asphaltenes as was shown for the Tia Juana asphaltenes.^The difference in behavior between Jobo and Tia Juana asphaltene solutions shows that ``asphaltene`` is not a chemical composition and that samples from different crude sources may behave quite differently.^(JRD)
Country of PublicationUnited States
LanguageEnglish
FormatPages: 53-59
System Entry Date2001 May 13

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