RESEARCH PROGRESS ON SEPARATION AND IDENTIFICATION OF NITROGEN-CONTAINING COMPOUNDS IN COAL-DERIVED OILS
The separation and extraction of nitrogen-containing compounds is one of the effective ways to achieve high value-added utilization of coal-derived oils.This paper introduces four separation and extraction methods,including solid-phase extraction,acid-base extraction,ionic liquid extraction,and low melting solvent extraction,as well as the research status,advantages and disadvantages of four composition identification methods,including gas chromatography(GC),gas chromatography mass spectrometry(MS),Fourier transform ion cyclotron resonance mass spectrometry(FT-ICR-MS),and infrared spectroscopy(FT-IR).The development trends of technology were proposed.It is point-ed out that the extraction and separation of nitrogen compounds should focus on developing high-effi-ciency adsorbents in solid phase extraction,accelerating the research and preparation of ionic liquids and low-melting solvents,and the analysis and identification of nitrogen compounds will increasingly use Fourier transform ion cyclotron resonance mass spectrometers.
万方数据
维普
