FCC汽油GS中硫化物的分布特点(英文)

CHARACTERIZATION OF SULFUR COMPOUNDS IN GS FCC GASOLINE

FCC汽油样品GS按沸点切割成六个组分,然后使用配有原子发射光谱检测器的气相色谱仪(GC AED)分别分析每个馏分样品中的含硫化合物。数据表明,样品中含硫化合物以噻吩和烷基取代噻吩类为主,而且含硫化合物在样品中的分布是不均匀的,随着切割段沸点的提高,含硫化合物含量明显增加,多碳数取代噻吩类化合物含量增加。数据还可以用来参考确定轻、重馏分油切割点,以对轻、重馏分油采取不同的脱硫方法,达到最佳经济效益。

GS, a FCC gasoline sample, was first distilled into 6 cuts, and the detailed sulfur compositions present in each cut were analyzed using an Agilent 6890 gas chromatograph configured with an G2350A atomic emission detector (GC/AED) The data show that the sulfur compounds are mainly thiophenes and alkylsubstituted thiophenes, and the distribution of sulfur is not uniform, and a large part is concentrated in the heavy cut of the sample The data can also be used to estimate the cut point between light and heavy cuts, which is helpful to remove sulfur effectively by different methods at lowest cost