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Study on the Synergistic Properties of Two Nonionic Natural Gas Hydrate Anti-agglomerants Via Rocking Cell Tests

Received: 5 December 2017     Published: 6 December 2017
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Abstract

The application of anti-agglomerants (AAs) is becoming attractive due to effectiveness at low dosage and high subcooling. However, limited attention has been paid to the synergism effect between different AAs to increase their performance. In this study, anti-agglomeration performance of single and compounded chemical additives using a sapphire rocking cell is evaluated. The experimental results show that cocamidopropyl dimethylamine (AA) combined with sorbitan monooleate (Span 80) exhibits good anti-agglomeration performance. A compounded anti-agglomeration mechanism, in which Span 80 promotes the dispersion of water droplet in the oil phase before the formation of hydrates and AA prevents the agglomeration of hydrate particles formed from water droplets, is proposed. The physical appearance of the octane/brine/AAs mixtures has been studied and related to the anti-agglomeration performance of the AAs.

Published in International Journal of Energy and Power Engineering (Volume 6, Issue 6)
DOI 10.11648/j.ijepe.20170606.11
Page(s) 84-90
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Gas Hydrates, Hydrate Anti-agglomeration, Synergistic Effect, Span 80, Salt

References
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[5] M. Sun, A. Firoozabadi, G. Chen, C. Sun, Hydrate size measurements in anti-agglomeration at high watercut by new chemical formation, Energy Fuels, 2015, 29(5), 2901-2905.
[6] A. Perrin, O. M. Musa, J. W. Steed, The chemistry of low dosage clathrate hydrate, Chemical Society Review, 2013, 42, 1996-2015.
[7] J. Jeffrey, Inclusion Compounds, vol. 1. Academic Press, 1984, 159-190.
[8] F. M. Mohamed, M. A. Kelland, Tris(tert-heptyl)-N-alkyl-1-ammonium bromides-powerful THF hydrate crystal growth inhibitors and their synergism with poly-vinylcaprolactam kinetic gas hydrate inhibitor, Chemical Engineering Science, 2016, 144, 275-282.
[9] U. C. Klomp, R. Reijnhart, Method for inhibiting the plugging of conduits by gas hydrates, US5879561, 1999.
[10] M. A. Kelland, T. M. Svartaas, J. Øvsthus, T. Tomita, J. Chosa, Studies on some zwitterionic surfactant gas hydrate anti-agglomerants, Chemical Engineering Science, 2006, 61, 4048-4059.
[11] Z. Huo, E. Freer, M. Lamar, B. Sannigrahi, D. M. Knauss, E. D. Sloan, Hydrate plug prevention by anti-agglomeration, Chemical Engineering Science, 2001, 56, 4979-4991.
[12] M. A. Kelland, T. M. Svartaas, J. Øvsthus, T. Tomita, K. Mizuta, Studies on some alkylamide surfactant gas hydrate anti-agglomerants, Chemical Engineering Science, 2006, 61, 4290-4298.
[13] J. D. York, A. Firoozabadi, Alcohol cosurfactants in hydrate antiagglomeration, Journal of Physical Chemistry B, 2008, 112, 10445-10465.
[14] X. Wang, H. Qin, Q. Ma, Z. Sun, K. Yan, Z. Song, K. Guo, D. Liu, G. Chen, C. Sun, Hydrate antiagglomeration performance for the active components extracted from a terrestrial plant fruit, Energy Fuels, 2017, 31(1), 287-298.
[15] M. Sun, A. Firoozabadi, New surfactant for hydrate anti-agglomeration in hydrocarbon flowlines and seabed oil capture, Journal of Colloid and Interfacial Science, 2013, 402, 312-319.
[16] S. Dong, A. Firoozabadi, Hydrate anti-agglomeration and synergy effect in normal octane at varying water cuts and salt concentrations, The Journal of Chemical Thermodynamics, 2017 (accepted).
[17] K. Yan, C. Sun, J. Chen, L. Chen, D. Shen, B. Liu, M. Jia, M. Niu, Y. Lv, N. Li, Z. Song, S, Niu, G. Chen, Flow characteristics and rheological properties of natural gas hydrate slurry in the presence of AA in a flow loop apparatus, Chemical Engineering Science, 2014, 106, 99-108.
[18] J. Chen, C. Sun, B. Peng, B. Liu, S. Si, M. Jia, L. Mu, K. Yan, G. Chen, Screening and compounding of gas hydrate anti-agglomerants from commercial additives through morphology observation, Energy Fuels, 2013, 27(5), 2488-2496.
[19] R. Ambekar, Equilibrium conditions of hydrate-forming pickering emulsions (M. S. thesis), City University of New York, New York, NY, 2012.
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Cite This Article
  • APA Style

    Sanbao Dong, Mingzhong Li, Chenwei Liu. (2017). Study on the Synergistic Properties of Two Nonionic Natural Gas Hydrate Anti-agglomerants Via Rocking Cell Tests. International Journal of Energy and Power Engineering, 6(6), 84-90. https://doi.org/10.11648/j.ijepe.20170606.11

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    ACS Style

    Sanbao Dong; Mingzhong Li; Chenwei Liu. Study on the Synergistic Properties of Two Nonionic Natural Gas Hydrate Anti-agglomerants Via Rocking Cell Tests. Int. J. Energy Power Eng. 2017, 6(6), 84-90. doi: 10.11648/j.ijepe.20170606.11

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    AMA Style

    Sanbao Dong, Mingzhong Li, Chenwei Liu. Study on the Synergistic Properties of Two Nonionic Natural Gas Hydrate Anti-agglomerants Via Rocking Cell Tests. Int J Energy Power Eng. 2017;6(6):84-90. doi: 10.11648/j.ijepe.20170606.11

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  • @article{10.11648/j.ijepe.20170606.11,
      author = {Sanbao Dong and Mingzhong Li and Chenwei Liu},
      title = {Study on the Synergistic Properties of Two Nonionic Natural Gas Hydrate Anti-agglomerants Via Rocking Cell Tests},
      journal = {International Journal of Energy and Power Engineering},
      volume = {6},
      number = {6},
      pages = {84-90},
      doi = {10.11648/j.ijepe.20170606.11},
      url = {https://doi.org/10.11648/j.ijepe.20170606.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.20170606.11},
      abstract = {The application of anti-agglomerants (AAs) is becoming attractive due to effectiveness at low dosage and high subcooling. However, limited attention has been paid to the synergism effect between different AAs to increase their performance. In this study, anti-agglomeration performance of single and compounded chemical additives using a sapphire rocking cell is evaluated. The experimental results show that cocamidopropyl dimethylamine (AA) combined with sorbitan monooleate (Span 80) exhibits good anti-agglomeration performance. A compounded anti-agglomeration mechanism, in which Span 80 promotes the dispersion of water droplet in the oil phase before the formation of hydrates and AA prevents the agglomeration of hydrate particles formed from water droplets, is proposed. The physical appearance of the octane/brine/AAs mixtures has been studied and related to the anti-agglomeration performance of the AAs.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Study on the Synergistic Properties of Two Nonionic Natural Gas Hydrate Anti-agglomerants Via Rocking Cell Tests
    AU  - Sanbao Dong
    AU  - Mingzhong Li
    AU  - Chenwei Liu
    Y1  - 2017/12/06
    PY  - 2017
    N1  - https://doi.org/10.11648/j.ijepe.20170606.11
    DO  - 10.11648/j.ijepe.20170606.11
    T2  - International Journal of Energy and Power Engineering
    JF  - International Journal of Energy and Power Engineering
    JO  - International Journal of Energy and Power Engineering
    SP  - 84
    EP  - 90
    PB  - Science Publishing Group
    SN  - 2326-960X
    UR  - https://doi.org/10.11648/j.ijepe.20170606.11
    AB  - The application of anti-agglomerants (AAs) is becoming attractive due to effectiveness at low dosage and high subcooling. However, limited attention has been paid to the synergism effect between different AAs to increase their performance. In this study, anti-agglomeration performance of single and compounded chemical additives using a sapphire rocking cell is evaluated. The experimental results show that cocamidopropyl dimethylamine (AA) combined with sorbitan monooleate (Span 80) exhibits good anti-agglomeration performance. A compounded anti-agglomeration mechanism, in which Span 80 promotes the dispersion of water droplet in the oil phase before the formation of hydrates and AA prevents the agglomeration of hydrate particles formed from water droplets, is proposed. The physical appearance of the octane/brine/AAs mixtures has been studied and related to the anti-agglomeration performance of the AAs.
    VL  - 6
    IS  - 6
    ER  - 

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Author Information
  • College of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China

  • College of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China

  • College of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China

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