Identification and quantification of carbazole and benzocarbazole homologues in clarified slurry oils by an ammonia chemical ionization g.c.-m.s

An ammonia chemical ionization g.c.-m.s. technique was used to identify and quantify alkyl carbazole and benzocarbazole homologues in catalytically cracked clarified slurry oils produced at seven Shell Oil refineries. Quantification was accomplished by selective ion monitoring of the MH + ions and t...

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Bibliographic Details
Published in:Fuel (Guildford) 1988-08, Vol.67 (8), p.1155-1159
Main Authors: Dzidic, Ismet, Balicki, Michael D., Hart, Haskell V.
Format: Article
Language:English
Subjects:
Applied sciences
Constitution and properties of crude oils, shale oils, natural gas and bitumens. Analysis and characteristics
Crude oil, natural gas and petroleum products
Energy
Exact sciences and technology
Fuels
gas chromatography
mass spectrometry
slurry
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Summary:An ammonia chemical ionization g.c.-m.s. technique was used to identify and quantify alkyl carbazole and benzocarbazole homologues in catalytically cracked clarified slurry oils produced at seven Shell Oil refineries. Quantification was accomplished by selective ion monitoring of the MH + ions and the use of 9-phenylcarbazole as an internal standard. the total percentages of carbazoles and benzocarbazoles range from 0.6 to 4.3 wt%.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(88)90387-0