石油化工高等学校学报 ›› 2022, Vol. 35 ›› Issue (1): 18-22.DOI: 10.3969/j.issn.1006-396X.2022.01.003

• 石油化工 • 上一篇    下一篇

塔河沥青质亚组分分离及表征

林东浩1(), 罗根祥1, 朱孟爽1, 黄金1, 齐名玉1, 宁爱民2, 许凌子1()   

  1. 1.辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
    2.中国石油化工股份有限公司 大连石油化工研究院,辽宁 大连 116045
  • 收稿日期:2021-03-04 修回日期:2021-04-22 出版日期:2022-02-28 发布日期:2022-04-14
  • 通讯作者: 许凌子
  • 作者简介:林东浩(1994⁃),男,硕士,从事石油及石油化工产品分析方面研究;E⁃mail:393663201@qq.com
  • 基金资助:
    中国石化资助课题(118009?1)

Separation and Characterization of Tahe Asphaltenes

Donghao Lin1(), Genxiang Luo1, Mengshuang Zhu1, Jin Huang1, Mingyu Qi1, Aimin Ning2, Lingzi Xu1()   

  1. 1.School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
    2.Dalian Research Institute of Petroleum and Petrochemicals,China Petroleum & Chemical Corporation,Dalian Liaoning 116045,China
  • Received:2021-03-04 Revised:2021-04-22 Published:2022-02-28 Online:2022-04-14
  • Contact: Lingzi Xu

摘要:

采用甲苯?正庚烷法将塔河沥青质(TA)分离成重组分(TA1)和轻组分(TA2),使用扫描电镜(SEM)、X射线衍射(XRD)、傅里叶变换红外光谱法(FT?IR)和核磁共振氢谱(1H?NMR)等方法对TA、TA1和TA2进行表征,分析其表面形态、晶体结构和官能团结构等组成和结构信息。结果表明,TA具有较少的长链结构,侧链中支链化程度较高,并以甲基、乙基、丙基短支链烷基结构为主。TA经分离后得到的亚组分TA1、TA2在微观结构上存在明显差异,TA1石墨化程度最高,支链最长,芳环侧链较多,烷基侧链支化程度较差,芳香性相对较强;TA2石墨化程度较差,烷基侧链支化程度较高,芳环侧链较少,芳香性相对较弱。

关键词: 沥青质, 分离, 组成, 结构

Abstract:

Tahe asphaltene (TA) was separated into heavy component(TA1) and light component (TA2). The surface morphology, crystal structure and functional group structure of TA, TA1 and TA2 were characterized by Scanning Electron Microscope (SEM), X?ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT?IR) and 1H?Nuclear Magnetic Resonance Spectrum (1H?NMR). The results show that TA has less long?chain structure, more branched chains in side chains, and is mainly composed of short branched alkyl structure such as methyl, ethyl and propyl. Sub?components TA1 and TA2 show obviously different microstructure after separated from TA. TA1 has the highest degree of graphitization, the longest branched chain, more side?chains of aromatic ring, less branched chains of alkyl side?chains and relatively strong aromaticity, while TA2 has lower degree of graphitization, more branched chains of alkyl side?chains, less side?chains of aromatic ring and relatively weak aromaticity.

Key words: Asphaltene, Separation, Composition, Structure

中图分类号: 

引用本文

林东浩, 罗根祥, 朱孟爽, 黄金, 齐名玉, 宁爱民, 许凌子. 塔河沥青质亚组分分离及表征[J]. 石油化工高等学校学报, 2022, 35(1): 18-22.

Donghao Lin, Genxiang Luo, Mengshuang Zhu, Jin Huang, Mingyu Qi, Aimin Ning, Lingzi Xu. Separation and Characterization of Tahe Asphaltenes[J]. Journal of Petrochemical Universities, 2022, 35(1): 18-22.

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