Characterization of heavy crude oil fractions by means of the 13C NMR technique

1979 ◽  
Vol 44 (4) ◽  
pp. 1160-1166 ◽  
Author(s):  
Milan Hájek ◽  
Gustav Šebor ◽  
Ivo Lang ◽  
Zenon Starčuk ◽  
Otto Weisser ◽  
...  
Keyword(s):  
Crude Oil ◽  
Nmr Spectra ◽  
Heavy Crude Oil ◽  
Aromatic Rings ◽  
Oil Fractions ◽  
Aliphatic Carbon ◽  
Heavy Crude ◽  
Crude Oil Fractions ◽  
C Nmr

The 13C NMR spectra of samples of heavy crude oil fractions were interpreted. The spectra of all samples were of the same character. In the region of the aliphatic carbon shifts, ten different carbon atom types were discerned; some possible structure types of hydrocarbons were attributed to them and the arrangement of the aromatic rings in a mean molecule of the samples examined was discussed.

COMPLEX PERMITTIVITY OF CRUDE OILS AND SOLUTIONS OF HEAVY CRUDE OIL FRACTIONS

1998 ◽  
Vol 19 (1) ◽  
pp. 93-126 ◽  
Author(s):  
Trond Friisø ◽  
Yannick Schildberg ◽  
Odile Rambeau ◽  
Tore Tjomsland ◽  
Harald Førdedal ◽  
...  
Keyword(s):  
Crude Oil ◽  
Complex Permittivity ◽  
Crude Oils ◽  
Heavy Crude Oil ◽  
Oil Fractions ◽  
Heavy Crude ◽  
Crude Oil Fractions

scholarly journals A comprehensive investigation of refinery preheaters foulant samples originated by heavy crude oil fractions as heating fluids

Fuel ◽  
2018 ◽  
Vol 224 ◽  
pp. 529-536 ◽  
Author(s):  
Elaheh Behranvand ◽  
Mohammad Reza Mozdianfard ◽  
Emilio Diaz-Bejarano ◽  
Francesco Coletti ◽  
Pawel Orzlowski ◽  
...  
Keyword(s):  
Crude Oil ◽  
Heavy Crude Oil ◽  
Comprehensive Investigation ◽  
Oil Fractions ◽  
Heavy Crude ◽  
Crude Oil Fractions

scholarly journals Controlled reduction of aromaticity of alkylated polyaromatic compounds by selective oxidation using H2WO4, H3PO4 and H2O2: A route for upgrading heavy oil fractions

2021 ◽  
Author(s):  
Ewa Nowicka ◽  
Meenakshisundaram Sankar ◽  
Robert Jenkins ◽  
D. W. Knight ◽  
David J Willock ◽  
...  
Keyword(s):  
Crude Oil ◽  
Selective Oxidation ◽  
Heavy Oil ◽  
Significant Proportion ◽  
Fractional Distillation ◽  
Heavy Crude Oil ◽  
Oil Fractions ◽  
Heavy Crude ◽  
Crude Oil Fractions ◽  
Hydrocarbon Reserves

Heavy crude oil fractions which form the residues from fractional distillation are a significant proportion of current hydrocarbon reserves. However, processing residues for use as chemicals or fuels is hampered...

The transalkylation reaction: Analytical tool for the study of heavy crude oil fractions. Application to asphaltenes of various types

1990 ◽  
Vol 16 (4-6) ◽  
pp. 969-980 ◽  
Author(s):  
P.-L. Desbene ◽  
A. Abderrezag ◽  
B. Desmazieres ◽  
J.-J. Basselier ◽  
F. Behar ◽  
...  
Keyword(s):  
Crude Oil ◽  
Analytical Tool ◽  
Heavy Crude Oil ◽  
Oil Fractions ◽  
Heavy Crude ◽  
Crude Oil Fractions

Characterization of Doba–Chad heavy crude oil in relation with the feasibility of pipeline transportation

Fuel ◽  
2004 ◽  
Vol 83 (16) ◽  
pp. 2157-2168 ◽  
Author(s):  
Soumaïne Dehkissia ◽  
Faïçal Larachi ◽  
Denis Rodrigue ◽  
Esteban Chornet
Keyword(s):  
Crude Oil ◽  
Heavy Crude Oil ◽  
Pipeline Transportation ◽  
Heavy Crude
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