Changes in the Structural Parameters of Resins and Asphaltenes during Oil Dewaxing with Liquefied Gas

被引：1
作者：
Mozhayskaya, M., V [1 ]
Pevneva, G. S. [1 ]
Surkov, V. G. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Petr Chem, Tomsk, Russia
来源：
CHEMISTRY FOR SUSTAINABLE DEVELOPMENT | 2020年 / 28卷 / 03期
关键词：
asphaltenes; resins; liquefied gas dewaxing; PRECIPITATION; SIMULATION;
D O I：
10.15372/CSD2020229
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Changes in the structural parameters of tar and asphaltene molecules of sediments obtained after oil dewaxing with liquefied petroleum gas at temperatures of 0, -5, -15 and -25 degrees C were studied. It is shown that with a decrease in process temperature the amount of precipitate formed in the process increases from 10.9 to 13.4 mass %; deeper dewaxing, complete deasphalting and partial detarring also take place. It was established that a decrease in precipitation temperature from 0 to -25 degrees C causes changes in the structural-group characteristics of asphaltene and resin molecules: molecular mass, the number of aromatic and naphthenic cycles, alkyl substituents and structural blocks in the molecule.
引用
收藏
页码：263 / 269
页数：7
相关论文
共 20 条
  • [1] Effect of the Composition of Dispersion Medium on the Structural Parameters of Resins and Asphaltenes in Low-Temperature Dewaxing of Oil
    Mozhayskaya, M., V
    Pevneva, G. S.
    Surkov, V. G.
    CHEMISTRY FOR SUSTAINABLE DEVELOPMENT, 2021, 29 (02): : 159 - 165
  • [2] Structural Transformations of Heavy Oil Resins and Asphaltenes upon Thermal Cracking
    Voronetskaya, N. G.
    Pevneva, G. S.
    SOLID FUEL CHEMISTRY, 2021, 55 (03) : 165 - 170
  • [3] Structural Transformations of Heavy Oil Resins and Asphaltenes upon Thermal Cracking
    N. G. Voronetskaya
    G. S. Pevneva
    Solid Fuel Chemistry, 2021, 55 : 165 - 170
  • [4] PARAMETERS OF MACROSTRUCTURE OF INSOLUBLE PRODUCTS OBTAINED BY THERMOLYSIS OF RESINS AND ASPHALTENES OF THE USINSKAYA OIL
    Antipenko, Vladimir R.
    Grinko, Andrey A.
    BULLETIN OF THE TOMSK POLYTECHNIC UNIVERSITY-GEO ASSETS ENGINEERING, 2021, 332 (04): : 123 - 131
  • [5] The Effect of Inhibitory Additive on the Structural Parameters of Resins and Asphaltenes in the Deposits of Oil-Water Emulsions with Different Water Content
    Prozorova, I., V
    Nebogina, N. A.
    Yudina, N., V
    CHEMISTRY FOR SUSTAINABLE DEVELOPMENT, 2020, 28 (03): : 284 - 289
  • [6] Stability and structural changes of asphaltenes upon the etherification of heavy oil
    Korneev, Dmitry S.
    Sviridenko, Nikita N.
    Pevneva, Galina S.
    Klimenko, Lubov S.
    PETROLEUM SCIENCE AND TECHNOLOGY, 2024, 42 (25) : 4041 - 4053
  • [7] Formation behaviors of gas hydrates in water-in-oil emulsions with the coexistence of asphaltenes and resins
    Zhang, Dongxu
    Wang, Xin
    Liu, Cheng
    Song, Lechun
    Li, Huiyuan
    Huang, Qiyu
    Zhang, Jianfeng
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2024, 691
  • [8] Hydrocarbon composition and structural parameters of resins and asphaltenes of naphthenic oils of northern West Siberia
    Pevneva, G. S.
    Fursenko, E. A.
    Voronetskaya, N. G.
    Mozhayskaya, M. V.
    Golovko, A. K.
    Nesterov, I. I.
    Kashirtsev, V. A.
    Shevchenko, N. P.
    RUSSIAN GEOLOGY AND GEOPHYSICS, 2017, 58 (3-4) : 425 - 433
  • [9] Changes in the Molecular Structure of Resins and Asphaltenes of Natural Bitumen during Thermal Cracking
    Sviridenko, N. N.
    Krivtsov, E. B.
    Golovko, A. K.
    CHEMISTRY FOR SUSTAINABLE DEVELOPMENT, 2018, 26 (02): : 179 - 186
  • [10] Changes in structural-group characteristics of resins and asphaltenes of heavy oils in the primary distillation process
    M. A. Kopytov
    A. K. Golovko
    Petroleum Chemistry, 2017, 57 : 39 - 47
12