Review of Fundamental Properties of Gas Hydrates: Breakout Sessions of the International Workshop on Methane Hydrate Research and Development

Uchida, Tsutomu; Kvamme, Bjørn; Coffin, Richard B.; Tenma, Norio; Oyama, Ai; Masutani, Stephen M.

doi:10.3390/en10060747

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…14,15 This paved the way for many productive hydrate investigations for storage, separation, and transportation in the gas industry. 9,[16][17][18] Besides, the hydrate methodology is helpful in the carbon dioxide capture and storage (CCS), 19,20 and also in desalination technology. 21 The ideal gas intake capacity based on some model calculations (CSMGem) 3 for CH 4 hydrates is 170.4 v/v (ideal).…”

Section: Methane Gasmentioning

confidence: 99%

Explicating the amino acid effects for methane storage in hydrate form

2022

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Section: Methane Gasmentioning

confidence: 99%

Explicating the amino acid effects for methane storage in hydrate form

2022

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“…Although the current estimate of the amount of gas contained in this form is promising (nearly double to all other carbon sources), the process development for safer and sustainable extraction is challenging, mainly because of adverse p-T conditions. Nevertheless, even 10% of gas extraction from this source will be sufficient for global energy requirements for next 100 years or so at the current level of consumption 1 – 3 .…”

Section: Introductionmentioning

confidence: 99%

Clathrate Hydrates of Greenhouse Gases in the Presence of Natural Amino Acids: Storage, Transportation and Separation Applications

Prasad

Kiran

2018

Sci Rep

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Storage of greenhouse gases in the form of gas hydrates is attractive and is being pursued rigorously in recent times. However, slow formation rate and inefficient water to hydrate conversion are the main hindering factors. In this report, we examine the role of two amino acids (0.5 wt%), l-methionine (l-met) and l-phenylalanine (l-phe) on the formation of gas hydrates using methane (CH4), carbon dioxide (CO2) and their mixtures as guest molecules. Experiments are conducted under non-stirred and isochoric configurations. The hydrate conversion efficiency of both amino acids is identical for hydrates formed with CH4 and mixture of (CO2+CH4). However, the hydrate conversion is significantly less in CO2 hydrates in l-phe system. Addition of amino acids to the water dramatically improved the kinetics of hydrate formation and 90% of maximum gas uptake in hydrate phase occurred in less than an hour. The water to hydrate conversion is also very efficient (>85%) in the presence of amino acids. Therefore, the amino acids containing systems are suitable for storing both CH4 and CO2 gases. The gas hydrates were characterised using powder x-ray diffraction (XRD) and Raman spectroscopic measurements. These measurements indicate the formation of sI hydrates and encasing of gas molecules as guests.

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“…Substantial hydrate deposits, both under permafrost and marine sedimentary strata, are remained unexploited and suitable technology for gas recovery is at an infant stage. The size selectivity and larger storage capacity of guest molecules opened up many attractive applications for fuel gas separation, storage, and transportation applications. − Additionally, the gas hydrate-based approach is useful in the carbon-dioxide capture and storage, , and desalination technology. , …”

Section: Introductionmentioning

confidence: 99%

Storage of Methane Gas in the Form of Clathrates in the Presence of Natural Bioadditives

Kiran

2018

ACS Omega

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Methane (CH 4 ) and carbon dioxide (CO 2 ), the important greenhouse gases, are capable of forming clathrate hydrates under some suitable thermodynamic conditions. The gas storage capacity of these materials is high, and therefore they are often useful in gas storage applications. Certain expensive and toxic chemicals are employed to accelerate/decelerate the process. In this study, we report rapid (∼30–50 min) and effective (∼80%) methane hydrate conversion in the presence of three naturally occurring additives such as dry powders from Nelumbo nucifera (Indian lotus), Piper betle (betel), and Azadirachta indica (neem), at lower concentrations (0.5 wt %). Obtained results were carefully compared with the well-known kinetic promoter (sodium dodecyl sulfate). All the biomaterials are equally good kinetic promoters for methane hydrates, although the required subcooling is significantly large. However, no hydrate formation is observed with CO 2 gas.

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Review of Fundamental Properties of Gas Hydrates: Breakout Sessions of the International Workshop on Methane Hydrate Research and Development

Cited by 10 publications

References 26 publications

Explicating the amino acid effects for methane storage in hydrate form

Explicating the amino acid effects for methane storage in hydrate form

Clathrate Hydrates of Greenhouse Gases in the Presence of Natural Amino Acids: Storage, Transportation and Separation Applications

Storage of Methane Gas in the Form of Clathrates in the Presence of Natural Bioadditives

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