摘要
Enrichment of organic sulfur compounds in gasoline was investigated with acid extracting agent(sulfuric acid + phosphoric acid + water) and solvent n-hexane.Sulfides and thiophene derivatives in gasoline are extracted into n-hexane;the concentration of sulfur compounds enriched in n-hexane can be higher than 12 times of the sulfur concentration in gasoline sample.Thus,sulfides and thiophene derivatives enriched in n-hexane can be analyzed easily by using a gas chromatography with flame photometric detector(GC-FPD) and a gas chromatography-mass spectrometry(GC-MS) because of less interference of hydrocarbon.In this work,52 sulfur compounds were detected with GC-FPD,of which 14 sulfur compounds with determinate structures were identified with GC-MS.
Enrichment of organic sulfur compounds in gasoline was investigated with acid extracting agent （ sulfuric acid ＋ phosphoric acid ＋ water） and solvent n-hexane. Sulfides and thiophene derivatives in gasoline are extracted into n-hexane; the concentration of sulfur compounds enriched in n-hexane can be higher than 12 times of the sulfur concentration in gasoline sample. Thus, sulfides and thiophene derivatives enriched in n-hexane can be analyzed easily by using a gas chromatography with flame photometric detector （GC-FPD） and a gas chromatography-mass spectrometry （GC-MS） because of less interference of hydrocarbon. In this work, 52 sulfur compounds were detected with GC-FPD, of which 14 sulfur compounds with determinate structures were identified with GC-MS.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2006年第6期753-756,共4页
Journal of Fuel Chemistry and Technology
基金
中国石油化工股份有限公司研究开发项目(X505020)
江苏省高技术研究基金(BG2005018)
关键词
汽油
硫化物
富集
分析
gasoline
sulfur compound
enrichment
analysis
