Exxon Octane Model Calculator

Please select the species that you want to calculate and enter their vol%...

SpeciesTypeRONMONVolume%
n-butanen-Paraffins9489.6
isobutanei-Paraffins10297.6
n-pentanen-Paraffins6262.6
i-pentanei-Paraffins9290.3
n-hexanen-Paraffins24.826
C6 monomethylsi-Paraffins7673.9
2,2-dimethylbutanei-Paraffins91.893.4
2,3-dimethylbutanei-Paraffins105.894.3
n-heptanen-Paraffins00
C7 monomethylsi-Paraffins5252
C7 dimethylsi-Paraffins93.7690
2,2,3-trimethylbutanei-Paraffins112.8101.32
n-octanen-Paraffins-15-20
C8 monomethylsi-Paraffins2532.3
C8 dimethylsi-Paraffins6974.5
C8 trimethylsi-Paraffins10598.8
n-nonanen-Paraffins-20-20
C9 monomethylsi-Paraffins1522.3
C9 dimethylsi-Paraffins5060
C9 trimethylsi-Paraffins10093
n-decanen-Paraffins-30-30
C10 monomethylsi-Paraffins1010
C10 dimethylsi-Paraffins4040
C10 trimethylsi-Paraffins9587
n-undecanen-Paraffins-35-35
C11 monomethyli-Paraffins55
C11 dimethylsi-Paraffins3535
C11 trimethylsi-Paraffins9082
n-dodecanen-Paraffins-40-40
C12 monomethyli-Paraffins55
C12 dimethylsi-Paraffins3030
C12 trimethylsi-Paraffins8580
cyclopentaneNaphthenes10084.9
cyclohexaneNaphthenes82.577.2
m-cyclopentaneNaphthenes91.380
C7 naphthenesNaphthenes8277
C8 naphthenesNaphthenes5550
C9 naphthenesNaphthenes3530
benzeneAromatics102.7105
tolueneAromatics118103.5
C8 aromaticsAromatics112105
C9 aromaticsAromatics110101
C10 aromaticsAromatics10998
C11 aromaticsAromatics10594
C12 aromaticsAromatics10290
n-butenesOlefins98.782.1
n-pentenesOlefins9077.2
i-pentenesOlefins10382
cyclopenteneOlefins93.369.7
n-hexenesOlefins9080
i-hexenesOlefins10083
total C6 cyclic olefinsOlefins9580
total C7dOlefins9078
total C8dOlefins9077
MTBEOxygenates115.297.2
TAMEOxygenates11598
EtOHOxygenates10892.9




References

[1] ExxonMobil Gasoline Composition-Based Octane Model is implemented based on the following paper:
P. Ghosh, K.J. Hickey, S.B. Jaffe
"Development of a detailed gasoline composition-based octane model", Ind. Eng. Chem. Res. 45 (2006) 337–345.
DOI:10.1021/ie050811h ( doi:10.1021/ie050811h )