Formation and storage characteristics of CO2 hydrate in porous media: Effect of liquefaction amount on the formation rate, accumulation amount

Zhang, Xuemin; Wang, Jiaxian; Yang, Huijie; Li, Jinping; Li, Yinhui; Wu, Qingbai

doi:10.1016/j.applthermaleng.2022.118747

Cited by 22 publications

(4 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The operating pressure was set at 3.3 MPa to maintain CO 2 in its gas phase. It was necessary to keep the pressure below 3.3 MPa as studies have indicated that above this threshold, CO 2 tends to liquefy, which could potentially affect the rate of hydrate formation. , Since the natural environment of the hydrate bed would be associated with salinity, we performed experiments in the saline environment. The salinity concentration used 3.5 wt % NaCl to mimic the natural environment conditions. , The temperature was kept similar to 276.2 K for saline conditions.…”

Section: Resultsmentioning

confidence: 99%

CO₂ Hydrate Formation and Dissociation Kinetics in Silica Sand Using Amino Acid Additives: Experimental Investigations and Implications for Carbon Sequestration

Pagar,

Burla,

Kumar

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

Storing carbon dioxide (CO 2 ) as a hydrate in stratigraphic sediments is considered one of the most effective methods for reducing CO 2 emissions and preventing global warming. However, the characteristics of CO 2 hydrate formation/dissociation in marine settings can significantly affect the storage process. This study investigates CO 2 hydrate formation/dissociation in silica sand porous media (particles of 400 μm) at reservoir conditions of 276.2 K and 3.3 MPa. For the first time, we conducted a comparative study to understand the efficacy of different hydrophobic amino acids for promoting CO 2 hydrate formation in sediments. We evaluated the potential of three amino acid additives, Lleucine, L-tryptophan, and L-methionine, for sequestering carbon dioxide by forming CO 2 hydrates in subsea deposits. Experiments were performed at two different concentrations of amino acids in both nonsaline and saline (3.5 wt % NaCl solution) conditions to mimic natural environments. Critical parameters such as gas consumption, uptake rate, and induction time were assessed to determine the effectiveness of these additives in promoting CO 2 hydrate formation. It was observed that 0.2 wt % L-tryptophan exhibited the highest CO 2 uptake, averaging 99.36 ± 2.93 mmol/mol H 2 O in nonsaline conditions. In contrast, 0.2 wt % L-methionine showed the least uptake in saline conditions, with an average of 22.41 ± 0.93 mmol/ mol H 2 O. Salinity had a dominant effect at 0.2 wt %, but increasing the concentration to 1.0 wt % bypassed the influence of NaCl, with L-leucine and L-tryptophan showing favorable gas uptakes of 81.57 ± 0.16 and 63.71 ± 3.75 mmol/mol H 2 O, respectively. For nonsaline conditions, L-tryptophan exhibited the highest effectiveness, followed by L-methionine and L-leucine. In saline environments, L-leucine and L-tryptophan significantly promoted CO 2 hydrate formation at 1.0 wt %, while L-methionine did not show any characteristic promotion effect. Salt presence significantly affects the hydrate dissociation, while amino acids have a more prominent impact on hydrate dissociation in the absence of salt.

show abstract

Section: Resultsmentioning

confidence: 99%

CO₂ Hydrate Formation and Dissociation Kinetics in Silica Sand Using Amino Acid Additives: Experimental Investigations and Implications for Carbon Sequestration

Pagar,

Burla,

Kumar

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…The method of seawater desalination due to CO 2 hydrate is described in [29]. The gas storage and transportation performance of CO 2 hydrate are discussed in [30][31][32]. The specifics of the production and use of carbonated solid products in the food industry are discussed in [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Combustion of Liquid Fuels in the Presence of CO2 Hydrate Powder

Misyura

Морозов

Donskoy

et al. 2023

Fire

View full text Add to dashboard Cite

The process of combustion of a liquid fuel layer (diesel, kerosene, gasoline, separated petroleum, and oil) in the presence of CO2 hydrate has been studied. These fuels are widely used in engineering, which explains the great interest in effective methods of extinguishing. Extinguishing liquid fuels is quite a complicated scientific and technical task. It is often necessary to deal with fire extinction during oil spills and at fuel burning in large containers outdoors and in warehouses. Recently, attention to new extinguishing methods has increased. Advances in technology of the production, storage, and transportation of inert gas hydrates enhance the opportunities of using CO2 hydrate for extinguishing liquid fuels. Previous studies have shown a fairly high efficiency of CO2 hydrate (compared to water spray) in the extinction of volumetric fires. To date, there are neither experimental data nor methods for determining the dissociation rate of CO2 hydrate powder at the time of the gas hydrate fall on the burning layer of liquid fuel. The value of the dissociation rate is important to know in order to determine the temperatures of stable combustion and, accordingly, the mass of CO2 hydrate required to extinguish the flame. For the first time, a method jointly accounting for both the combustion of liquid fuel and the dissociation rate of the falling powder of gas hydrate at a negative temperature is proposed. The combustion stability depends on many factors. This paper defines three characteristic modes of evaporation of a liquid fuel layer, depending on the prevalence of vapor diffusion or free gas convection. The influence of the diameter and height of the layer on the nature of fuel evaporation is investigated.

show abstract

“…11 Because of these applications, basic and applied research on CO 2 hydrate has been a topic of intense investigation. For instance, Zhang et al 12 reported that an optimal amount of CO 2 liquefaction promotes CO 2 hydrate formation on porous media. Similarly, CO 2 capture micromechanisms and microstructures of stored forms together with hydrate growth rates were investigated by Zhang et al 13 In their work, based on the large amount of dissolved CO 2 gas in water compared to other investigated gases, a mechanism for hydrate growth was proposed to promote CO 2 capture and storage.…”

Section: ■ Introductionmentioning

confidence: 99%

Stochastic Cellular Automata Modeling of CO₂ Hydrate Growth and Morphology

Pineda

Phan

Koh

et al. 2023

Crystal Growth & Design

View full text Add to dashboard Cite

Carbon dioxide (CO 2 ) hydrates are important in a diverse range of applications and technologies in the environmental and energy fields. The development of such technologies relies on fundamental understanding, which necessitates not only experimental but also computational studies of the growth behavior of CO 2 hydrates and the factors affecting their crystal morphology. As experimental observations show that the morphology of CO 2 hydrate particles differs depending on growth conditions, a detailed understanding of the relation between the hydrate structure and growth conditions would be helpful. To this end, this work adopts a modeling approach based on hybrid probabilistic cellular automata to investigate variations in CO 2 hydrate crystal morphology during hydrate growth from stagnant liquid water presaturated with CO 2 . The model, which uses free energy density profiles as inputs, correlates the variations in growth morphology to the system subcooling ΔT, i.e., the temperature deficiency from the triple CO 2 −hydrate−water equilibrium temperature under a given pressure, and properties of the growing hydrate-water interface, such as surface tension and curvature. The model predicts that when ΔT is large, parabolic needle-like or dendrite crystals emerge from planar fronts that deform and lose stability. In agreement with chemical diffusion-limited growth, the position of such planar fronts versus time follows a power law. In contrast, the tips of the emerging parabolic crystals steadily grow in proportion to time. The modeling framework is computationally fast and produces complex growth morphology phenomena under diffusion-controlled growth from simple, easy-to-implement rules, opening the way for employing it in multiscale modeling of gas hydrates.

show abstract

Formation and storage characteristics of CO2 hydrate in porous media: Effect of liquefaction amount on the formation rate, accumulation amount

Cited by 22 publications

References 58 publications

CO₂ Hydrate Formation and Dissociation Kinetics in Silica Sand Using Amino Acid Additives: Experimental Investigations and Implications for Carbon Sequestration

CO₂ Hydrate Formation and Dissociation Kinetics in Silica Sand Using Amino Acid Additives: Experimental Investigations and Implications for Carbon Sequestration

Combustion of Liquid Fuels in the Presence of CO2 Hydrate Powder

Stochastic Cellular Automata Modeling of CO₂ Hydrate Growth and Morphology

Contact Info

Product

Resources

About

Formation and storage characteristics of CO2 hydrate in porous media: Effect of liquefaction amount on the formation rate, accumulation amount

Cited by 22 publications

References 58 publications

CO2 Hydrate Formation and Dissociation Kinetics in Silica Sand Using Amino Acid Additives: Experimental Investigations and Implications for Carbon Sequestration

CO2 Hydrate Formation and Dissociation Kinetics in Silica Sand Using Amino Acid Additives: Experimental Investigations and Implications for Carbon Sequestration

Combustion of Liquid Fuels in the Presence of CO2 Hydrate Powder

Stochastic Cellular Automata Modeling of CO2 Hydrate Growth and Morphology

Contact Info

Product

Resources

About

CO₂ Hydrate Formation and Dissociation Kinetics in Silica Sand Using Amino Acid Additives: Experimental Investigations and Implications for Carbon Sequestration

CO₂ Hydrate Formation and Dissociation Kinetics in Silica Sand Using Amino Acid Additives: Experimental Investigations and Implications for Carbon Sequestration

Stochastic Cellular Automata Modeling of CO₂ Hydrate Growth and Morphology