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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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Kvamme B, Vasilev A. Black Sea hydrate production value and options for clean energy production. RSC Adv 2023; 13:20610-20645. [PMID: 37441039 PMCID: PMC10333814 DOI: 10.1039/d3ra03774f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Natural gas hydrates of Bulgaria and Romania in the Black Sea have been subject to studies by several European research projects. The current understanding of the hydrate distribution, and the total amounts of hydrate in the region, makes it interesting to evaluate in terms of commercial potential. In this study, we have evaluated some well-known hydrate production methods. Thermal stimulation and adding chemicals are considered as not economically feasible. Pressure reduction may not be efficient due to the endothermic dissociation of hydrates and long-term cooling of the sediments. Chemical work due to pressure reduction is an additional mechanism but is too slow to be commercially feasible. Adding CO2/N2, however, has a dual value. In the future, CO2 can be stored at a price proportional to a CO2 tax. This is deducted from the value of the released natural gas. The maximum addition of N2 is around 30 mol% of the CO2/N2 mixture. A minor addition (in the order of 1 mol%) of CH4 increases the stability of the hydrate created from the injection gas. The maximum N2 amount is dictated by the demand for the creation of a new hydrate from injection gas but also the need for sufficient heat release from this hydrate formation to dissociate the in situ CH4 hydrates. An additional additive is needed to accelerate the formation of hydrate from injection gas while at the same time reducing the creation of blocking hydrate films. Based on reasonable assumptions and approximations as used in a verified kinetic model it is found that CH4/CO2 swapping is a feasible method for Black Sea hydrates. It is also argued that the technology is essentially conventional petroleum technology combined with learning from projects on aquifer storage of CO2, and a thermodynamic approach for design of appropriate injection gas. It is also argued that the CH4/CO2 swap can be combined with well-known technology for steam cracking of produced hydrocarbons to H2 and CO2 (for re-injection).
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Affiliation(s)
- Bjørn Kvamme
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University Xindu Road No. 8 Chengdu 610500 China +86 47 9345 1956
- State Key Laboratory of Natural Gas Hydrate Sun Palace South Street No. 6 Beijing 10027 China
- Strategic Carbon LLC 7625 Rancho Vista BLVD W Corpus Christi 78414 TX USA
| | - Atanas Vasilev
- Institute of Oceanology - Bulgarian Academy of Sciences First May str. 40, PO Box 152 Varna 9000 Bulgaria
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New insights into methane hydrate inhibition with blends of vinyl lactam polymer and methanol, monoethylene glycol, or diethylene glycol as hybrid inhibitors. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2022.118387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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