| 全二维气相色谱-飞行时间质谱分析直馏柴油馏分中硫化物的分子组成 |
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| 引用本文： | 牛鲁娜 刘泽龙 田松柏. 全二维气相色谱-飞行时间质谱分析直馏柴油馏分中硫化物的分子组成[J]. 中国炼油与石油化工, 2014, 16(3): 10-18 |
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| 作者姓名： | 牛鲁娜 刘泽龙 田松柏 |
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| 作者单位： | 1. 石油化工科学研究院;2. 中国石化石油化工科学研究院; |
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| 基金项目： | financially supported by the National Basic Research Program of China (973 Program) (2012CB224800) |
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| 摘 要： | The solid-phase extraction using Pd-Al2O3 as the stationary phase was employed to pre-separate the sulfur compoundsin straight-run diesel. The isolating effect was evaluated quantitatively by gas chromatography with a sulfur chemiluminescencedetector to harvest a satisfactory result. The identification of the structure of sulfur compounds by comprehensivetwo-dimensional gas chromatography coupled with the time-of-flight mass spectrometry indicated that cyclo-sulfides,benzothiophenes, dibenzothiophenes, dihydro-benzothiophenes and tetrahydro-dibenzothiophenes were included in straightrundiesel obtained from the Arab medium crude （AM）. A total of 259 individual compounds were detected and their molecularstructures were identified. The analytical method was approved as an effective way to characterize the composition ofsulfur compounds, which reduced the interference of other compounds, facilitated the data presentation and provided moredetailed information about molecular composition of sulfur compounds.
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| 关 键 词： | 硫化物 直馏柴油 固相萃取 全二维气相色谱-飞行时间质谱 |
Identification and Characterization of Sulfur Compoundsin Straight-Run Diesel Using ComprehensiveTwo-Dimensional GC Coupled with TOF MS |
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| Niu Luna,Liu Zelong,Tian Songbai. Identification and Characterization of Sulfur Compoundsin Straight-Run Diesel Using ComprehensiveTwo-Dimensional GC Coupled with TOF MS[J]. China Petroleum Processing and Petrochemical Technology, 2014, 16(3): 10-18 |
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| Authors: | Niu Luna Liu Zelong Tian Songbai |
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| Affiliation: | 1. ;2. Research Institute of Petroleum Processing, SINOPEC; |
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| Abstract: | The solid-phase extraction using Pd-Al2O3 as the stationary phase was employed to pre-separate the sulfur compounds in straight-run diesel. The isolating effect was evaluated quantitatively by gas chromatography with a sulfur chemiluminescence detector to harvest a satisfactory result. The identification of the structure of sulfur compounds by comprehensive two-dimensional gas chromatography coupled with the time-of-flight mass spectrometry indicated that cyclo-sulfides, benzothiophenes, dibenzothiophenes, dihydro-benzothiophenes and tetrahydro-dibenzothiophenes were included in straightrun diesel obtained from the Arab medium crude(AM). A total of 259 individual compounds were detected and their molecular structures were identified. The analytical method was approved as an effective way to characterize the composition of sulfur compounds, which reduced the interference of other compounds, facilitated the data presentation and provided more detailed information about molecular composition of sulfur compounds. |
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| Keywords: | sulfur compounds straight-run diesel solid-phase extraction （SPE） comprehensive two-dimensional gas chromatographycoupled with the time-of-flight mass spectrometry （GC×GC-TOF MS） |
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