Abstract: The light distillates of the crude oil from Russia were selected as the research object, and the nitrogen compounds were extracted by solid-phase extraction columns（SPE),and identified by gas chromatography-mass spectrometry ( GC-MS ). Combined with gas chromatography-nitrogen chemiluminescence detection(GC-NCD) and gas chromatography-sulfur chemiluminescence detection ( GC-SCD ). The nitrogen compounds in the light distillates of crude oil were sulfhydryl propionitrile compounds, which were the unconventional nitrogen compounds. GC-NCD was used to quantify sulfhydryl propionitrile compounds in crude oil light distillate. This study solves the problem of nitrogen compound morphology with high nitrogen content in light distillate of crude oil from Russia, and provides effective information for subsequent nitrogen removal processes.

Key words: light distillates of crude oil, catalytic reforming feedstock, sulfhydryl propionitrile compounds, gas chromatography-nitrogen chemiluminescence detection