Experimental investigation on the micro-morphologies and growing process of methane hydrate formation in SDS solution

Liu, Zhiming; Li, Yuxing; Wang, Wuchang; Song, Guangchun; Lu, Zhiyuan; Ning, Yuanxing; Liu, Shuai

doi:10.1016/j.fuel.2021.120320

Cited by 42 publications

(27 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the addition of SDS increased the amount of hydrate formation probably because SDS reduces the surface tension and increases the solubility of the hydrate. 41 , 42 However, there was no simple linear, positive correlation between the SDS concentration and hydrate formation.…”

Section: Resultsmentioning

confidence: 99%

“…In this system, enhanced hydrate formation occurs because, as mentioned earlier, SDS reduces the surface tension and increases hydrate solubility, thus increasing the rate 44 , 45 and amount of hydrate formed. 41 , 42 However, below the critical micelle concentration of SDS, 46 its ability to reduce the solution surface tension and increase the gas solubility is low; thus, the rate of hydrate formation is relatively slow. 47 In contrast, above the critical micelle concentration, 46 the hydrate film is formed too quickly, thus preventing gas–liquid contact, hindering hydrate formation, and resulting in a low hydrate formation rate.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Composite Accelerators on the Formation of Carbon Dioxide Hydrates

et al. 2022

View full text Add to dashboard Cite

To improve the rate of formation of carbon dioxide hydrates, tetra- n -butylammonium bromide (TBAB) was compounded with different concentrations of sodium dodecyl sulfate (SDS) and nanographite, and the effects of these mixtures on carbon dioxide hydrate formation were studied. The addition of TBAB alone, as well as mixtures of TBAB and SDS or nanographite, shortened the induced nucleation time, and the induction times of the TBAB–2.5 g/L nanographite and TBAB–0.24 g/L SDS systems were the shortest and longest, respectively. Further, on mixing TBAB and SDS, the induced nucleation time first increased and then decreased with the increase in the SDS concentration. When TBAB and nanographite were mixed together, the induced nucleation time first decreased, then increased, and again decreased with the increase in the nanographite concentration. In addition, the hydrate formation rate and conversion were highest for the TBAB–0.48 g/L SDS system and lowest for the TBAB–0.06 g/L SDS system; in the first 35 min, from the end of gas charging, the TBAB–10 g/L nanographite and TBAB–5 g/L nanographite systems yielded the highest and lowest hydrate formation rates and conversions, respectively. For the composite systems, obvious effects were observed in the initial stages of reaction, but the effects varied over the course of the reaction. Overall, the use of different accelerators resulted in little differences in the total production, conversion, and formation rate of carbon dioxide hydrates over the course of the reaction.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effects of Composite Accelerators on the Formation of Carbon Dioxide Hydrates

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Studies report that the micelle formation and the decreased surface tension offer higher gas water interaction and enhance mass transfer. [67][68][69][70][71] All these methods and materials are good at laboratory scale, but industrial-scale may hamper the cost and technical constraints. Recently additives such as amino acids and bio powders are proved to be kinetic hydrate promoters for CH 4 and CO 2 hydrates.…”

Section: Hydrate Technology For Gas Storage and Transportationmentioning

confidence: 99%

Enrichment of gas storage in clathrate hydrates by optimizing the molar liquid water–gas ratio

Kiran

Prasad

2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…In the absence of porous media, there are a lot of studies on the growth forms of hydrocarbon hydrates by various promoters, but this is not the focus of our detailed introduction. Detailed information can be obtained in some reviews and studies. ,− Therefore, for the future study of hydrate growth morphology, there is still a large gap to be filled in the field of the complex system of porous media and various accelerators, especially the growth characteristics and microscopic morphology of hydrate in the bed.…”

Section: Occurrence Characteristics Of Natural Gas Hydrate In Porous ...mentioning

confidence: 99%

“…In addition to porous media, various kinetic and thermodynamic additives are also used in hydrate formation promotion research, including various surfactants, ,, amino acids, , THF, , TBAB, and CP, etc. They can effectively promote the formation of hydrates by reducing the interfacial surface tension or moderating thermodynamic conditions for hydrate formation.…”

Section: Challenges and Perspectives For The Futurementioning

confidence: 99%

Influence of the Particle Size of Porous Media on the Formation of Natural Gas Hydrate: A Review

et al. 2021

Self Cite

View full text Add to dashboard Cite

As a new source of energy with great potential, natural gas hydrate (NGH) will play an indispensable and important strategic role in the future because of its tremendous reserves and wide application prospects in industry. It is of great significance to study the factors affecting the formation and occurrence of NGH for its exploration and exploitation under natural conditions and its application in industry. Since the sediments where NGH are mostly found are in porous media, the impact of porous media on the formation and occurrence of NGH has always been a research focus. This review focuses on the effects of the particle size of porous media on hydrate nucleation, growth, the conversion of water to hydrate, and phase equilibrium by summarizing previous studies. And occurrence characteristics of hydrates in porous media and the application of hydrate-based technologies are reviewed. A thorough analysis of the existing literature suggests that there is no consistent conclusion on the influence of the particle size and surface characteristics of porous media on hydrate formation. There is some debate, and the existence of a critical size of porous media needs further exploration. In addition, the interaction mechanism between the complex pore structure of porous media and the joint effects of particle size and initial water saturation on the hydrate formation process is still not clear. Thus, the influence of different initial water saturation conditions and pore structures on the formation and occurrence of NGH under different particle size conditions should be studied in the future to provide a reference for understanding the mineralization mechanism of NGH under natural conditions. Finally, some suggestions are put forward for studies of gas hydrate formation.

show abstract

Experimental investigation on the micro-morphologies and growing process of methane hydrate formation in SDS solution

Cited by 42 publications

References 78 publications

Effects of Composite Accelerators on the Formation of Carbon Dioxide Hydrates

Effects of Composite Accelerators on the Formation of Carbon Dioxide Hydrates

Enrichment of gas storage in clathrate hydrates by optimizing the molar liquid water–gas ratio

Influence of the Particle Size of Porous Media on the Formation of Natural Gas Hydrate: A Review

Contact Info

Product

Resources

About