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Molecular weight distributions for heavy fossil fuels from gel-permeation chromatography and characterization data

Journal Article · · Ind. Eng. Chem. Res.; (United States)
OSTI ID:7229642
A correlation is presented for calculating molecular weight distributions for high-boiling hydrocarbon mixtures from measurements using gel-permeation chromatography (GPC). The correlation uses GPC elution volume, hydrogen-to-carbon ratio from elemental analysis, and hydrogen distribution from H NMR spectroscopy. Results for 45 pure hydrocarbons give an average deviation of less than 4%. For application to fractions, the procedure is illustrated with results for an Alaskan North-Slope residue. Characterization data are reported for 13 heavy fossil-fuel fractions, including coal-liquefaction products and crude oils.
Research Organization:
Materials and Molecular Research Div., Lawrence Berkeley Lab., and Chemical Engineering Dept., Univ. of California, Berkeley, CA (US)
OSTI ID:
7229642
Journal Information:
Ind. Eng. Chem. Res.; (United States), Journal Name: Ind. Eng. Chem. Res.; (United States) Vol. 26:11; ISSN IECRE
Country of Publication:
United States
Language:
English