Nitrogen speciation in petroleum distillates using a complementary and powerful approach by GC×GC-NCD and FT-ICR/MS

摘要

The quantification by GC*GC-NCD and the semi quantification by FTICR-MS give close results for quinoline and carbazole. For the other families the results are complementary. Work on differents kind of HDN diesels fuel with differents concentreations of total and basic nitrogen to validate the methodology. A semi quantification by carbon number versus DBE is possible by FTICR-MS. Molecular level observation by FTICR-MS of nitrogen species give informations on HDN mechanisms. The method allows to compare the evolution of feeds by HDN process by using differents conditions (temperature, pressure, catalyst, ...).