Experimental study and modeling of the kinetics of carbon-dioxide hydrate formation and dissociation: A mass transfer limited kinetic approach

Feyzi, Vafa; Mohebbi, Vahid

doi:10.1016/j.jngse.2020.103273

Cited by 15 publications

(13 citation statements)

References 46 publications

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“…The minimum value is observed at a temperature between 276.15 and 278.15 K (maybe at 277 K). A similar functionality for pure CO 2 hydrate formation kinetic parameters was reported in a previous study . Other researchers observed a similar behavior for the kinetic parameters of CH 4 hydrate formation and CO 2 hydrate formation, , and they reported a minimum value for the rates of pure CO 2 and pure CH 4 hydrate formation at around 277 K. Liang et al studied the kinetics of CO 2 +CH 4 hydrate formation at temperatures up to 277.15 K, and they similarly observed that the kinetic parameters for hydrate formation decrease from 273.15 to 277.15 K. They did not report data for temperatures higher than 277.15 K. As implied by Englezos et al, the density of water goes from a maximum at 277 K (the maximum water temperature).…”

Section: Resultssupporting

confidence: 80%

“…The moment of hydrate appearance can be observed visually through sapphire windows mounted on the wall of the crystallizer. More details of the experimental setup are presented elsewhere . The gas phase composition measured by a Young Lin 6500 gas chromatograph equipped with a microthermal conductivity meter detector (μTCD-VICI).…”

Section: Methodsmentioning

confidence: 99%

“…More details of the experimental setup are presented elsewhere. 43 The gas phase composition measured by a Young Lin 6500 gas chromatograph equipped with a microthermal conductivity meter detector (μTCD-VICI). Ultra-high purity CO 2 and CH 4 were purchased from Persian Gas Cooperation, and mixture gases were prepared by the procedure explained in the next section.…”

Section: Methodsmentioning

confidence: 99%

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Mixed CO₂+CH₄ Hydrate Formation Kinetics: Experimental Study and Modeling

Feyzi

Mohebbi

2020

Energy Fuels

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Multifaceted benefits of natural gas as the cleanest fossil fuel resulted in significant shift from other forms of fossil fuels to natural gas in different sectors over the past years. Applying natural gas as the medium-term future energy source is an effective climate strategy. Recently, gas hydrate gained significant attention as a solution for purification and storage of natural gas. Additionally, naturally occurring methane hydrate deposits as the most abundant unconventional natural gas source can secure the global energy demand for decades. Macroscopic kinetic study and modeling of mixed CO 2 +CH 4 hydrate formation is necessary for commercialization of SNG technology as an applicable method for hydrate-based transportation of natural gas, hydrate-based biogas upgrading, and CH 4 -CO 2 hydrate replacement process for exploitation of naturally occurring methane hydrate reservoirs. Here, the results for CO 2 +CH 4 mixed hydrate formation experiments are reported over a wide range of operational conditions to investigate the kinetics of hydrate formation. The mass transfer limited hydrate formation kinetic approach was applied to model the kinetics of mixed CO 2 +CH 4 hydrate formation. Investigation of the effect of operational conditions revealed that the rate of mixed CO 2 +CH 4 hydrate formation is increased at higher pressures and higher mole fractions of CO 2 in the gas phase. At a constant degree of supersaturation, the mixed hydrate formation rate initially decreases by temperature, goes from a minimum around 277 K, and then increases by temperature. Kinetic parameters extracted from the kinetic modeling correlated as functions of pressure, temperature, and gas phase composition.

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Section: Resultssupporting

confidence: 80%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Mixed CO₂+CH₄ Hydrate Formation Kinetics: Experimental Study and Modeling

Feyzi

Mohebbi

2020

Energy Fuels

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“…The cost of reactors and separators are estimated based on the equipment volume. Hydrate formation reactors are stirred tank reactors, and their volumes are evaluated based on CO 2 hydrate formation rates calculated experimentally in a 316 cm 3 stirred reactor . Separators volumes are calculated according to the design procedure stated in the GPSA data book .…”

Section: Economic Modelmentioning

confidence: 99%

“…Hydrate formation reactors are stirred tank reactors, and their volumes are evaluated based on CO 2 hydrate formation rates calculated experimentally in a 316 cm 3 stirred reactor. 36 Separators volumes are calculated according to the design procedure stated in the GPSA data book. 37 The membrane price for CO 2 /N 2 separation is assumed to be $50/ m 2 .…”

Section: Economic Modelmentioning

confidence: 99%

Hybrid Hydrate-Membrane Post-combustion CO₂ Capture: A Conceptual Process Design and Analyses

Feyzi

Mohebbi

2020

Ind. Eng. Chem. Res.

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Efficient capture and storage of carbon dioxide can avoid the global warming crisis. Gas hydrate, as a novel gas in separation technique, has an excellent potential for separation of CO 2 from power plants effluent streams. In this study, synergy analysis is performed between hydrate-based and membrane separation techniques to develop a process for postcombustion carbon dioxide capture (hybrid hydrate membrane CO 2 capture or HHMCC). The HHMCC process was simulated in four cases to evaluate the effect of hydrate thermodynamic promoters. The proposed processes were studied from techno-economic aspects by performing energy, exergy, and economic analysis. In comparison to the standalone hydrate-based CO 2 capture process, combining membrane and hydrate separation techniques reduces the energy consumed per unit weight of captured CO 2 . Results showed that by applying hydrate promoters, the capital cost decreases, while the energy consumption reduction is not considerable for two of the promoters considered in this study. The energy consumption and cost of the integrated HHMCC process in the presence of tetra-n-butyl ammonium bromide + dodecyl trimethyl ammonium chloride have been estimated to be 1.87 electrical MJ/kg CO 2 and 41.75 U.S. $/ton CO 2 , respectively.

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Efficient hydrate-based carbon capture system enabled by red blood cell inspired encapsulation

Zhang,

et al. 2024

Applied Energy

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Experimental study and modeling of the kinetics of carbon-dioxide hydrate formation and dissociation: A mass transfer limited kinetic approach

Cited by 15 publications

References 46 publications

Mixed CO₂+CH₄ Hydrate Formation Kinetics: Experimental Study and Modeling

Mixed CO₂+CH₄ Hydrate Formation Kinetics: Experimental Study and Modeling

Hybrid Hydrate-Membrane Post-combustion CO₂ Capture: A Conceptual Process Design and Analyses

Efficient hydrate-based carbon capture system enabled by red blood cell inspired encapsulation

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Experimental study and modeling of the kinetics of carbon-dioxide hydrate formation and dissociation: A mass transfer limited kinetic approach

Cited by 15 publications

References 46 publications

Mixed CO2+CH4 Hydrate Formation Kinetics: Experimental Study and Modeling

Mixed CO2+CH4 Hydrate Formation Kinetics: Experimental Study and Modeling

Hybrid Hydrate-Membrane Post-combustion CO2 Capture: A Conceptual Process Design and Analyses

Efficient hydrate-based carbon capture system enabled by red blood cell inspired encapsulation

Contact Info

Product

Resources

About

Mixed CO₂+CH₄ Hydrate Formation Kinetics: Experimental Study and Modeling

Mixed CO₂+CH₄ Hydrate Formation Kinetics: Experimental Study and Modeling

Hybrid Hydrate-Membrane Post-combustion CO₂ Capture: A Conceptual Process Design and Analyses