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Characterization of crude oils by gel permeation chromatography.

Authors
Oelert-HH; Latham-DR; Haines-WE
Source
Sep Sci Technol 1970 Oct; 5(5):657-668
NIOSHTIC No.
10010486
Abstract
The classical method of dividing crude oil into narrow molecular- weight cuts--distillation--is not practical in the high-boiling region. Thus, gel permeation chromatography was evaluated as a technique for characterizing the high-molecular-weight portion of crude oils. Crude oils, stripped to 180 deg. C, were separated in a dual-column gpc system. The fractions obtained provided information concerning the amounts of material with molecular weights between 400 and 3,000. Gross estimates were made of the proportion of ring and nonring carbons in these fractions. The latter estimates were obtained by relating molecular weights determined on the fractions to a calibration plot made up from data on model compounds.
Keywords
Oils; Crude-oil; Chromatographic-analysis; Temperature-effects
CODEN
SSTEDS
Publication Date
19701001
Document Type
OP; Journal Article
Fiscal Year
1971
NTIS Accession No.
NTIS Price
Identifying No.
OP 13-71
Issue of Publication
5
ISSN
0149-6395
NIOSH Division
LERC
Source Name
Separation Science and Technology
State
WY
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