Appendix D
D. Research Octane Number for Hydrocarbons
(Antos et al., 1995)
See Table D.1
Fundamentals of Petroleum Refining
#
2010 Elsevier B.V.
DOI: 10.1016/ B978-0-444-52785-1.00030-9 All rights reserved.
Table D.1 Research octane numbers of pure hydrocarbons
Paraffins Naphthenes
n-Butane 94 Cyclopentane >100
Isobutane >100 Cyclohexane 83
n-Pentane 61.8 Methylcyclopentane 91.3
2-Methyl-1-butane 92.3 Methylcyclohexane 74.8
n-Hexane 24.8 1,3-Dimethylcyclopentane 80.6
2-Methyl-1-pentane 73.4 1,1,3-
Trimethylcyclopentane
87.7
2,2-Dimethyl-1-butane 91.8 Ethylcyclohexane 45.6
n-Heptane 0 Isobutylcyclohexane 33.7
2-Methylhexane 52 Aromatic
2,3-Dimethylpentane 91.1 Benzene -
2,2,3-Trimethylbutane >100 Toluene >100
n-Octane <0 o-Xylene -
3,3-Dimethylhexane 75.5 m-Xylene >100
2,2,4-Trimethylpentane 100 p-Xylene >100
n-Nonane <0 Ethylbenzene >100
2,2,3,3-
Tetramethylpentane
>100 n-Propylbenzene >100
n-decane <0 Isopropylbenzene >100
Olefins 1-Methyl-3-ethylbenzene >100
1-Hexene 76.4 n-butylbenzene >100
1-Heptene 54.5 1-Methyl -3-
isopropylbenzene
–
2-Methyl-2-hexene 90.4 1,2,3,4-
Tetramethylbenzene
>100
2,3-Dimethyl-1-pentene 99.3
485