加拿大油砂沥青中极性化合物的电喷雾——高分辨质谱研究

刘鹏; 黎茂稳; 孙永革; 蒋启贵; 陶国亮; 曹婷婷

doi:10.11781/sysydz201401089

加拿大油砂沥青中极性化合物的电喷雾——高分辨质谱研究

doi: 10.11781/sysydz201401089

刘鹏^1,2,3,
黎茂稳^2,3,
孙永革¹,
蒋启贵^2,3,
陶国亮^2,3,
曹婷婷^2,3

1.
浙江大学地球科学系, 杭州 310027
2. 中国石油化工集团公司油气成藏重点实验室, 江苏无锡 214126
3. 中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126

基金项目: 国家重点基础研究发展计划（973计划）（2012CB214801）；中国石化科技部项目（P11062）；中国博士后科学基金资助项目（2012M520550）及中国石化油气成藏重点实验室基金资助。

详细信息

作者简介:
刘鹏（1980-），男，博士后，从事油气地球化学研究工作。E-mail：liupeng_1207@163.com。

中图分类号: TE135.6
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出版历程
- 收稿日期: 2013-02-22
- 修回日期: 2013-12-02
- 刊出日期: 2014-01-28

Molecular characterization of polar species in Canadian oil sand bitumens by electrospray ionization and high resolution mass spectrometry

1.
Department of Earth Science, Zhejiang University, Hangzhou, Zhejiang 310027, China
2. SINOPEC Key Laboratory of Petroleum Accumulation Mechanisms, Wuxi, Jiangsu 214126, China
3. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

摘要

摘要: 目前，生物降解作用对饱和烃生物标志物、芳香烃生物标志物参数以及小分子含氮化合物参数影响的研究较多，而对大分子极性化合物组成影响的研究较少。采用负离子电喷雾—傅立叶变换离子回旋共振质谱（ESI FT-ICR MS）分析不同降解级别的加拿大油砂沥青中酸性及非碱性氮化合物分子组成，结果表明，加拿大油砂沥青中杂原子化合物组成非常复杂，共鉴定出10种不同杂原子类型（N₁、N₁O₁、N₁O₂、N₁S₁、O₁、O₁S₁、O₂、O₂S₁、O₃、O₄）的化合物，其中以O₂类化合物为主。随着生物降解程度的加深，N₁、N₁O₁及O₁类化合物的相对丰度逐渐降低，而O₂及O₂S₁类化合物的相对丰度显现出逐渐增加的趋势；高分辨质谱分析在石油大分子杂原子化合物研究方面所独有的优势，为石油地球化学研究提供了新的思路。
- 油砂沥青 /
- 生物降解 /
- 极性化合物 /
- 环烷酸 /
- 电喷雾—傅立叶变换离子回旋共振质谱 /
- 加拿大
Abstract: At present, biodegradation effect on saturated hydrocarbon biomarkers, aromatic biomarker parameters and low molecular weight nitrogen compounds and their parameters is mostly studied, with less attention paid to the research of high molecular weight polar compounds. Four genetically related Canadian oil sand bitumens with various biodegradation levels have been analyzed by negative-ion electrospray ionization (ESI) and Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR MS). The results show that the neutral nitrogen and acidic heteroatom compounds in the oil sand bitumens include N₁,N₁O₁,N₁O₂,N₁S,O₁,O₁S₁,O₂,O₂S₁,O₃ and O₄ heteroatom classes, among which the O₂ class species are most abundant. With increasing biodegradation, the relative abundances of N₁,N₁O₁ and O₁ class species decrease slightly, while the relative abundances of O₂ and O₂S₁ class species increase slightly. The advantage of high resolution mass spectrometry for analyzing high molecular weight polar compounds in crude oil indicates great potential for developing new petroleum geochemistry techniques.
- oil sand /
- biodegradation /
- polar compound /
- naphthenic acid /
- ESI and FT-ICR MS /
- Canada

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