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Semenov AP, Tulegenov TB, Mendgaziev RI, Stoporev AS, Istomin VA, Sergeeva DV, Lednev DA, Vinokurov VA. Dataset on investigating nucleation and growth kinetics of methane hydrate in aqueous methanol solutions. Data Brief 2024; 54:110517. [PMID: 38847010 PMCID: PMC11153902 DOI: 10.1016/j.dib.2024.110517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 05/06/2024] [Indexed: 06/09/2024] Open
Abstract
This work systematically investigates the effect of methanol (MeOH) in a wide range of concentrations (0, 1, 2.5, 5, 10, 20, 30, 40, and 50 mass%) on methane hydrate nucleation and growth kinetics. Multiple measurements of gas hydrate onset temperatures and pressures for CH4-H2O and CH4-MeOH-H2O systems were performed by ramp cooling experiments (1 K/h) using sapphire rocking cell RCS6 apparatus. The dataset comprises 96 ramp experiments conducted under identical initial conditions for each solution (gas pressure of 8.1 MPa at 295 K). The reported hydrate onset temperatures and pressures range within 248-282 K and 6.2-7.5 MPa, respectively. The methane hydrate onset subcooling was calculated using literature data on the three-phase gas-aqueous solution-gas hydrate equilibrium for the studied systems. The study determined the numerical values of the shape and scale parameters of gamma distributions that describe the empirical dependences of methane hydrate nucleation cumulative probability as a function of hydrate onset subcooling in the aqueous methanol solutions. Gas uptake curves were analyzed to characterize the kinetics of methane hydrate growth under polythermal conditions at different methanol concentrations.
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Affiliation(s)
- Anton P. Semenov
- Gubkin University, Department of Physical and Colloid Chemistry, 65 Leninsky prospekt, Building 1, Moscow 119991, Russia
| | - Timur B. Tulegenov
- Gubkin University, Department of Physical and Colloid Chemistry, 65 Leninsky prospekt, Building 1, Moscow 119991, Russia
| | - Rais I. Mendgaziev
- Gubkin University, Department of Physical and Colloid Chemistry, 65 Leninsky prospekt, Building 1, Moscow 119991, Russia
| | - Andrey S. Stoporev
- Gubkin University, Department of Physical and Colloid Chemistry, 65 Leninsky prospekt, Building 1, Moscow 119991, Russia
| | - Vladimir A. Istomin
- Gubkin University, Department of Physical and Colloid Chemistry, 65 Leninsky prospekt, Building 1, Moscow 119991, Russia
- Skolkovo Institute of Science and Technology (Skoltech), 30 Bolshoy Boulevard, p. 1, Moscow, 121205, Russia
| | - Daria V. Sergeeva
- Gubkin University, Department of Physical and Colloid Chemistry, 65 Leninsky prospekt, Building 1, Moscow 119991, Russia
- Skolkovo Institute of Science and Technology (Skoltech), 30 Bolshoy Boulevard, p. 1, Moscow, 121205, Russia
| | - Daniil A. Lednev
- Gubkin University, Department of Physical and Colloid Chemistry, 65 Leninsky prospekt, Building 1, Moscow 119991, Russia
| | - Vladimir A. Vinokurov
- Gubkin University, Department of Physical and Colloid Chemistry, 65 Leninsky prospekt, Building 1, Moscow 119991, Russia
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Sujith K. Effect of methanol as an amphiphile on water structuring around a hydrate forming gas molecule: Insights from molecular dynamics simulations. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lauricella M, Ghaani MR, Nandi PK, Meloni S, Kvamme B, English NJ. Double Life of Methanol: Experimental Studies and Nonequilibrium Molecular-Dynamics Simulation of Methanol Effects on Methane-Hydrate Nucleation. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:6075-6081. [PMID: 35422892 PMCID: PMC8996238 DOI: 10.1021/acs.jpcc.2c00329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/09/2022] [Indexed: 06/14/2023]
Abstract
We have investigated systematically and statistically methanol-concentration effects on methane-hydrate nucleation using both experiment and restrained molecular-dynamics simulation, employing simple observables to achieve an initially homogeneous methane-supersaturated solution particularly favorable for nucleation realization in reasonable simulation times. We observe the pronounced "bifurcated" character of the nucleation rate upon methanol concentration in both experiments and simulation, with promotion at low concentrations and switching to industrially familiar inhibition at higher concentrations. Higher methanol concentrations suppress hydrate growth by in-lattice methanol incorporation, resulting in the formation of "defects", increasing the energy of the nucleus. At low concentrations, on the contrary, the detrimental effect of defects is more than compensated for by the beneficial contribution of CH3 in easing methane incorporation in the cages or replacing it altogether.
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Affiliation(s)
- Marco Lauricella
- School
of Physics, University College Dublin, Belfield, Dublin 4 D04
V1W8, Ireland
- Istituto
per le Applicazioni del Calcolo, Consiglio
Nazionale delle Ricerche, 00185 Rome, Italy
| | - Mohammad Reza Ghaani
- School
of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Prithwish K. Nandi
- School
of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Simone Meloni
- School
of Physics, University College Dublin, Belfield, Dublin 4 D04
V1W8, Ireland
- Dipartimento
di Scienze Chimiche, Farmaceutiche e Agrarie (DOCPAS), University of Ferrara, 44121 Ferrara, Italy
| | - Bjorn Kvamme
- Hyzen
Energy, Laguna Hills, California 92656, United States
| | - Niall J. English
- School
of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland
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