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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2003  >  25(3): 310-313
WANG Huitong, XU Guanjun, YOU Jianchang, WANG Peirong, ZHANG Dajiang. SEPARATION AND DETERMINATION OF NEUTRAL NITROGEN COMPOUNDS AND ALKYLPHENOLS IN CRUDE OIL[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2003, 25(3): 310-313. doi: 10.11781/sysydz200303310
Citation: WANG Huitong, XU Guanjun, YOU Jianchang, WANG Peirong, ZHANG Dajiang. SEPARATION AND DETERMINATION OF NEUTRAL NITROGEN COMPOUNDS AND ALKYLPHENOLS IN CRUDE OIL[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2003, 25(3): 310-313. doi: 10.11781/sysydz200303310
shu

SEPARATION AND DETERMINATION OF NEUTRAL NITROGEN COMPOUNDS AND ALKYLPHENOLS IN CRUDE OIL

doi: 10.11781/sysydz200303310
  • 1.

    The Key Laboratory of Petroleum Geochemistry, CNPC, Beijing 100083, China

  • 2. Experimental Center, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China

  • Received Date: 2002-01-24
  • Rev Recd Date: 2003-04-02
  • Publish Date: 2003-05-25
    Abstract
  • A new method to simultaneously separate neutral nitrogen compounds and alkylphenols from crude oil was introduced in this paper.The crude oil in which asphaltane has been removed is put into a non polar C18 column,and the column is eluted by 15mL of hexane and 15mL of dichloromethane in turn.Most saturated hydrocarbon and aromatic hydrocarbon are eluted out after 5mL of hexane has been used.The neutral nitrogen compounds are separated after 6mL of hexane is added and the alkylphenols are obtained as soon as dichloromethane is added.The experiment results showed that the repeatability and stability of the method were satisfied.There are some advantages such as fewer regents,shorter proces sing time and purer neutral nitrogen compounds,compared with other methods.

     

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    • References(4)
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    Maowen Li,Steve R L.Yeuge B F.Models for Compositional fractionation of pyrrolic nitrogen compounds in petroleum during petroleum migration,adsorptive interaction between nitrogen compounds and organic and/or mineral phases in subsurface rocks[J],Geochemistry,1994,17:230-236.
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    Maowen Li,Stephen R Larter,Daniel Stoddart.Liquid chromatographic separation schemes for pyrrole and pyridine nitrogen aromatic heterocycle fractions from crude oils suitable for rapid characterization of geochemical samples[J].Analytical Chemistry,1992,(13):1337-1344.
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    包建平,马安来.原油中烷基苯酚和中性含氮化合物的快速分离与分析[J].江汉石油学院学报,1998,20(2):1-5.
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