摘要：Sulfide (sulfur ether or thioether) is a kind of chemically active compound in petroleum, which has special significance in both geochemistry and oil processing. However, the molecular characterization of sulfides is a challenge because the composition of sulfides is very complex and each individual sulfide generally has a very low concentration. Separation is necessary for an in-depth characterization of these compounds, but it is not easy to achieve thus far. Here, we developed a method for the isolation of sulfides from petroleum fractions. Sulfides have different adsorption behaviors from the petroleum matrix on the aluminum oxide and silica gel. The petroleum fraction was first separated by an alumina column to obtain the mixture of sulfides and nonpolar hydrocarbons, and then the mixture was transferred into the second column, which was packed with silica gel. Hydrocarbons were removed by a nonpolar solvent, and sulfides were eluted from the column with a polar solvent. Isolated fractions were characterized by high-resolution mass spectrometry and gas chromatography (GC). Results show that the method is simple and practical. The purity of the sulfide fraction is acceptable for composition analysis by GC-relevant techniques. The method could be used for routine analysis of sulfides in crude oil and its products.

ISSN号：0887-0624

卷、期、页：卷: 34期: 9页: 10837-10841

发表日期：2020-09-17

影响因子：3.421400

期刊分区（SCI为中科院分区）：三区

收录情况：SCIE（科学引文索引网络版）

发表期刊名称：ENERGY & FUELS

通讯作者：吴建勋

第一作者：张未来,常伟锋,吴昊,张亚和,史权

论文类型：期刊论文

论文概要：吴建勋,张未来,常伟锋,吴昊,张亚和,史权，Isolation of Sulfides from Petroleum for Molecular Characterization by Alumina and Silica Gel Adsorption，ENERGY & FUELS，2020，卷: 34期: 9页: 10837-10841

论文题目：Isolation of Sulfides from Petroleum for Molecular Characterization by Alumina and Silica Gel Adsorption