Analysis and comparison of nitrogen compounds in different liquid hydrocarbon streams derived from petroleum and coal

Na Li, Xiaoliang Ma, Qingfang Zha, Chunshan Song

Research output: Contribution to journalArticle

46 Scopus citations

Abstract

Identification and quantification of nitrogen compounds in five typical liquid hydrocarbon streams, including straight run gas oil, light cycle oil, and ultralow sulfur diesel derived from petroleum and coal liquids from the coal pyrolysis and the direct coal liquefaction, have been conducted by a combination of the modified solid phase extraction and gas chromatography with a mass spectrometry detector (GC-MS) and a nitrogen/phosphorus detector (GC-NPD). A simple and efficient method was applied for preisolating and concentrating the nitrogen compounds from the hydrocarbon matrix and coexisting oxygen-containing compounds. The identification and quantification results show that the coal-derived streams not only have much higher nitrogen content than the petroleum-derived ones but also contain quite different types of the nitrogen compounds. The major nitrogen compounds in the coal-derived streams are the basic nitrogen-containing compounds including aniline, quinoline, and their derivatives; while those in the petroleum-derived ones are the neutral nitrogen compounds, such as carbazole and its alkyl substituted derivatives. The implication of the analysis results on the fuel processing and deep denitrogenation is also discussed.

Original languageEnglish (US)
Pages (from-to)5539-5547
Number of pages9
JournalEnergy and Fuels
Volume24
Issue number10
DOIs
StatePublished - Oct 21 2010

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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