About LNG Energy Utilization Efficiency Estimation

Blagin, E.V.; Uglanov, D.A.; Dovgyallo, A.I.

doi:10.1016/j.proeng.2016.07.693

Cited by 15 publications

(5 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, it inevitably encounters a shortage of natural gas supply in some countries, thus requiring it to be stored for transportation and utilization. The common methods for storing natural gases include liquefied natural gas (LNG) and compressed natural gas (CNG). , However, LNG usually requires the natural gases to be cooled to low temperatures, which causes significant energy consumption and complex technology. CNG usually requires the pressure of the natural gas to be increased dramatically, which can pose a significant safety hazard.…”

Section: Introductionmentioning

confidence: 99%

Ultrarapid Formation and Direct Observation of Methane Hydrate in the Presence of l-Tryptophan

Shen

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Environmentally friendly amino acids are promising candidates for the application of hydrate-based gas solidification technology and others. The formation kinetics and macroscopic morphology of methane hydrate in the presence of l-tryptophan were experimentally studied by adopting an isothermal and isochoric method. The experimental results showed that l-tryptophan could not increase the nucleation rates of methane hydrates, but it had better kinetic promotion effects on the growth rates of methane hydrate than sodium dodecyl sulfate, and the minimum concentration required to be effective was 0.1 wt %. The promotion effects almost remained unchanged with the increase of the concentration of l-tryptophan, even at a stirring rate of 200 rpm. For a 0.1 wt % l-tryptophan solution, the ultimate gas consumption was increased by 46.52% and t 90 was decreased by 33.67% when the initial experimental pressure was elevated from 7 to 11 MPa. Both ultimate gas consumption and t 90 were increased when the temperature was increased from 273.65 to 277.15 K. From direct top view observation, methane hydrate tended to first nucleate at the gas–liquid–solid triple phase lines, then stretched like a thin film along the surface of the solution. The hydrate continued to form at the edge of the film and even climbed on to the inner wall of the container. The solution under the hydrate film was continuously sucked, and the hydrate film could even be cracked by interfacial forces at higher pressure. When the concentration of l-tryptophan was greater than 0.5 wt %, hydrates cropped out from several sites of the hydrate film and continued to grow upward. The formed hydrates were quite loose and porous which provided capillary forces and channels for the upward transportation of the solution.

show abstract

Section: Introductionmentioning

confidence: 99%

Ultrarapid Formation and Direct Observation of Methane Hydrate in the Presence of l-Tryptophan

Shen

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…From the point of view of cryogenic working fluid cold energy utilization it is possible to estimate an efficiency of its utilization. The algorithm of cold energy values calculation is presented in [11]. Compressor delivery is related to a cold energy value which is calculated by expression:…”

Section: Modelling Resultsmentioning

confidence: 99%

Numerical Modeling of Non-stationary Processes in Cryogenic Mechanical Thermocompressor

Blagin¹,

Dovgyallo²,

Uglanov³

2017

IJMERR

View full text Add to dashboard Cite

Mechanical thermocompressor is suited for gas compression with constant volume by means of heat addition. Its classic modelling theories usually do not take into account non-isothermal conditions of its chambers. This article deals with thermocompressor modelling with nonisothermal hot and cold chambers. The results of the modelling show significant loss (16.45%) of compressor delivery due to non-isothermal conditions of its chambers. Maximal mass mean temperature deviations for cold and hot chambers are equal to 14.98% and-8.5% correspondingly. 

show abstract

“…Systems that require refrigeration or cooling are being developed in such a way that the cold energy possessed by LNG can be utilized [23,24]. Power generation, desalination, air separation and fractionation, and carbon dioxide liquefaction are examples of these systems [25,26].…”

Section: Applications Of Cold Utilization Of Lngmentioning

confidence: 99%

Recent Progress in Cold Utilization of Liquefied Natural Gas

Shingan

Parthasarthy

2023

Chem Eng & Technol

View full text Add to dashboard Cite

Liquefaction of natural gas occurs at –162 °C and atmospheric pressure for transporting it over long distances. In the customer's segment, the liquefied natural gas is regasified before distribution. Around 830 kJ kg−1 energy is required for the production of liquefied natural gas and is often saved as cold energy, which can be reused by regasification terminals. Hence, for the past few years, cold energy utilization has been an important topic of research in the energy sector. The different techniques to utilize cold energy for power generation, air fractionation, extraction of natural gas liquids, refrigeration systems, desalination, and dry ice manufacturing are reviewed and discussed. Applying the cold utilization of LNG technique in these systems can help to improve efficiency and decrease operating costs effectively.

show abstract

About LNG Energy Utilization Efficiency Estimation

Cited by 15 publications

References 4 publications

Ultrarapid Formation and Direct Observation of Methane Hydrate in the Presence of l-Tryptophan

Ultrarapid Formation and Direct Observation of Methane Hydrate in the Presence of l-Tryptophan

Numerical Modeling of Non-stationary Processes in Cryogenic Mechanical Thermocompressor

Recent Progress in Cold Utilization of Liquefied Natural Gas

Contact Info

Product

Resources

About