Structures and composition of S and N compounds in direct coal liquefaction oil
LI Weilin
SHI Zhijie
ZHANG Xiaojing
LI Junfang
HU Fating
Abstract：In order to offer basic data for upgrading of direct coal liquefaction oil ( DCLO) ,analysis of S and N compounds in DCLO was studied.Composition and contents of S and N compounds were detected with GC-PFPD and GC-NCD respectively.Optimum analysis con-ditions of GC-PFPD and GC-NCD were given.The S and N compounds in DCLO were analysised.Benzothiophene and dibenzothiophene compounds were the main S compounds in DCLO,more than 90%of S in DCLO,and they were the main S compounds during desulphuri-zation.Five membered rings (32%of N in DCLO) were the main N compounds in DCLO,more than 50% of N in DCLO,which mainly were indoles and carbazoles,and they were the main N compounds during denitrification.
Keywords：direct coal liquefaction oilGC-PFPDGC-NCDS and N compounds
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 55-57,45 )