1,2-Dimethyl Carbazole
1,8-Dimethyl Carbazole
The carbazole compounds boil within the same boiling range as the
substituted dibenzothiophenes, ~620–660
F. At conditions that desulfurize the
feed to <10 wppm S, hydrodenitrogenation is very extensive and is essentially
complete.
Aromatics
Aromatic compounds are another class of compounds that are of importance in the
hydrotreating of distillate fuels. Aromatic compounds may be classified in three
main classes – multi-aromatics (3+ condensed rings), di-aromatics, and monoaromatics.
2-Ethyl-7-methylanthracene
C
H 2
1,7-Dimethylanthracene
7-Ethyl-2-methyl-1,2,3,4,4a,9a-hexahydroanthracene
C
H 2
Hydrotreating in Petroleum Processing
387
1,8-Dimethyl Carbazole
The carbazole compounds boil within the same boiling range as the
substituted dibenzothiophenes, ~620–660
F. At conditions that desulfurize the
feed to <10 wppm S, hydrodenitrogenation is very extensive and is essentially
complete.
Aromatics
Aromatic compounds are another class of compounds that are of importance in the
hydrotreating of distillate fuels. Aromatic compounds may be classified in three
main classes – multi-aromatics (3+ condensed rings), di-aromatics, and monoaromatics.
2-Ethyl-7-methylanthracene
C
H 2
1,7-Dimethylanthracene
7-Ethyl-2-methyl-1,2,3,4,4a,9a-hexahydroanthracene
C
H 2
Hydrotreating in Petroleum Processing
387