TY - JOUR

T1 - Exploring the Influence of Surfactants on Methane Hydrate Formation Kinetics Beyond Its Thermodynamic Stability Region from a Supersaturated Solution ’Water + Sodium Lauryl Sulfate + Methane’

AU - Gets, K. V.

AU - Zhdanov, R. K.

AU - Bozhko, Y. Y.

AU - Subbotin, O. S.

AU - Belosludov, V. R.

N1 - The work was supported by the Russian Science Foundation under project no. 22-19-00428. O.S. Subbotin thanks the Ministry of Science and Higher Education of the Russian Federation (project no. 121031700321-3) for the possibility of using the computer cluster for computer calculations.

PY - 2024/6

Y1 - 2024/6

N2 - Abstract: In this paper, the effect of sodium lauryl sulfate (SDS) molecules in a homogeneous and already supersaturated aqueous methane solution on the structure of the hydrogen bond network and the kinetics of methane hydrate growth at moderate temperature and pressure is studied by the molecular dynamics method. From calculation of the number of hydrogen bonds and parameters of the tetragonal and torsion orders in comparison with a water + SDS solution and a pure water + methane solution, it is shown that the hydrate growth rate and its crystallinity grow as the methane concentration in the supersaturated solution decreases. In this case, increase in the SDS concentration in a solution with a higher gas concentration leads to phase separation.

AB - Abstract: In this paper, the effect of sodium lauryl sulfate (SDS) molecules in a homogeneous and already supersaturated aqueous methane solution on the structure of the hydrogen bond network and the kinetics of methane hydrate growth at moderate temperature and pressure is studied by the molecular dynamics method. From calculation of the number of hydrogen bonds and parameters of the tetragonal and torsion orders in comparison with a water + SDS solution and a pure water + methane solution, it is shown that the hydrate growth rate and its crystallinity grow as the methane concentration in the supersaturated solution decreases. In this case, increase in the SDS concentration in a solution with a higher gas concentration leads to phase separation.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85198831979&origin=inward&txGid=dca563854de9b66ccab62cfc274cb4f4

UR - https://www.mendeley.com/catalogue/71d354c6-f25b-3f97-bc72-22d5b2d82d22/

U2 - 10.1134/S1810232824020115

DO - 10.1134/S1810232824020115

M3 - Article

VL - 33

SP - 365

EP - 375

JO - Journal of Engineering Thermophysics

JF - Journal of Engineering Thermophysics

SN - 1810-2328

IS - 2

ER -