Characterization and Identification of Organic Sulfide Compounds in the Heavy Oil of Liquefied Petroleum Gas

Sulfur compounds in the heavy oil of liquefied petroleum gas (LPG) were separated by silic gel/PbCl₂ column chromatograph， and analyzed by gas chromatograph-pulse flame photometric detector (GC/PFPD) and gas chromatography-mass spectrometry (GC/MS). The result shows that the sulfides are the major sulphur compound in the heavy oil. The number of sulphur atom is 1-3， and carbon number of the sulphur is 2-8. Thiophenic compounds are not ideatified.