Research on Average Structure Parameter and Infrared Spectrum  Analysis in Venezuela Heavy Oil and Its SubFractions

doi:10.3969/j.issn.1006396X.2013.04.003

Journal of Petrochemical Universities ›› 2013, Vol. 26 ›› Issue (4): 11-15.DOI: 10.3969/j.issn.1006396X.2013.04.003

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Research on Average Structure Parameter and Infrared Spectrum  Analysis in Venezuela Heavy Oil and Its SubFractions

(1.College of Chemical Engineering, China University of Petroleum, Qingdao Shandong 266555, China; 2.College of Science， China University of Petroleum, Qingdao Shandong 266555,China)

Received:2013-03-22 Published:2013-08-25 Online:2013-08-25

稠油及其组分结构参数和红外光谱的考察

文萍¹,崔敏²,李传¹,郝海英¹,邓文安¹

(1.中国石油大学(华东)化学工程学院重质油加工国家重点实验室,山东青岛266555;
2.中国石油大学(华东)理学院,山东青岛266555)

作者简介:文萍(1971-),女,山东莘县,高级工程师,硕士。
基金资助:
国家自然科学基金青年基金项目(21106186)。

Abstract

Abstract: Heavy oils of Venezuela heavy oil was separated into four fractions which were saturate, aromatic, resin and nC7 insoluble asphaltene. Average structural parameters of heavy oil and its fractions were analyzed and computed. The results show that the same trend of average molecular weight, CT，HT，fA，CA，RA，RT，RN，CN , C.I. has the size order which is asphaltene，resin，aromatic，saturate. The infrared spectrum of Venezuela heavy oil' saturate shows that there were two strong absorption peaks between 2 800~3 100 cm-1 and 1 350~1 390 cm-1 ,which were methyl and methylene. Groups of hydroxyl and carbonyl lead to hydrogen bond between resin and asphaltene.

Key words: Heavy oil, , Subfraction, , Average Structure parameter, , Infrared spectra

摘要： 将委内瑞拉稠油进行四组分的分离。通过元素分析、核磁共振等分析方法研究了委内瑞拉稠油及其组分的基本性质及结构参数,对稠油及其组分的平均结构参数进行分析计算。结果表明,委内瑞拉稠油数均相对分子质量的大小顺序是:沥青质>胶质>芳香分>饱和分,沥青质的数均相对分子质量要远远大于其他3个组分的数均相对分子质量。委内瑞拉稠油的结构参数CT、HT、CA、RA、RT、RN、CN、C.I.大小顺序均为:沥青质>胶质>芳香分>饱和分。委内瑞拉稠油的饱和分红外谱图在2800~3100cm-1和1350~1390cm-1出现强吸收峰,属于甲基和亚甲基的特征峰。羟基、羰基等基团的存在使委内瑞拉稠油胶质与沥青质分子之间及沥青质本身分子形成氢键。

关键词: 稠油, , 组分 , , 结构参数 , 红外光谱

WEN Ping,CUI Min, LI Chuan,et al. Research on Average Structure Parameter and Infrared Spectrum  Analysis in Venezuela Heavy Oil and Its SubFractions[J]. Journal of Petrochemical Universities, 2013, 26(4): 11-15.

文萍,崔敏,李传,郝海英,邓文安. 稠油及其组分结构参数和红外光谱的考察[J]. 石油化工高等学校学报, 2013, 26(4): 11-15.

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Research on Average Structure Parameter and Infrared Spectrum  Analysis in Venezuela Heavy Oil and Its SubFractions

稠油及其组分结构参数和红外光谱的考察

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