Theoretical study of stability zones of mixed H2 + CO2 gas hydrates CS-I and CS-II

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Theoretical study of stability zones of mixed H₂ + CO₂ gas hydrates CS-I and CS-II. / Belosludov, V. R.; Zhdanov, R. K.; Bozhko, Y. Y. et al.

In: Journal of Physics: Conference Series, Vol. 1359, No. 1, 012047, 21.11.2019.

Research output: Contribution to journal › Conference article › peer-review

BibTeX

@article{82bb3719e33b4925a086bdfab78cd896,

title = "Theoretical study of stability zones of mixed H2 + CO2 gas hydrates CS-I and CS-II",

abstract = "Using the original approach that utilizes statistical thermodynamic theory that has been developed in our group the phase p-T diagram and hydrate phase composition have been calculated for {"}CO2 + H2 + H2O{"}. Depending on the CO2 content in the gas phase two hydrates types can be formed: CS-I and CS-II. It has been found that increasing CO2 content in the gas phase drastically reduces hydrate formation pressure and in the same time reduces hydrogen uptake by the hydrate. While pure H2 hydrates have CS-II structure, addition of more than 2 mol.% of CO2 into the gas phase makes CS-I hydrate structure more stable, that displays worse maximum hydrogen content. These results could be helpful for practical use of hydrates for efficient CO2 utilization and H2 transportation.",

keywords = "HYDROGEN CLUSTERS, PHASE-DIAGRAM, CLATHRATE",

author = "Belosludov, {V. R.} and Zhdanov, {R. K.} and Bozhko, {Y. Y.} and Subbotin, {O. S.}",

year = "2019",

month = nov,

day = "21",

doi = "10.1088/1742-6596/1359/1/012047",

language = "English",

volume = "1359",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

number = "1",

note = "4th All-Russian Scientific Conference Thermophysics and Physical Hydrodynamics with the School for Young Scientists, TPH 2019 ; Conference date: 15-09-2019 Through 22-09-2019",

}

RIS

TY - JOUR

T1 - Theoretical study of stability zones of mixed H2 + CO2 gas hydrates CS-I and CS-II

AU - Belosludov, V. R.

AU - Zhdanov, R. K.

AU - Bozhko, Y. Y.

AU - Subbotin, O. S.

PY - 2019/11/21

Y1 - 2019/11/21

N2 - Using the original approach that utilizes statistical thermodynamic theory that has been developed in our group the phase p-T diagram and hydrate phase composition have been calculated for "CO2 + H2 + H2O". Depending on the CO2 content in the gas phase two hydrates types can be formed: CS-I and CS-II. It has been found that increasing CO2 content in the gas phase drastically reduces hydrate formation pressure and in the same time reduces hydrogen uptake by the hydrate. While pure H2 hydrates have CS-II structure, addition of more than 2 mol.% of CO2 into the gas phase makes CS-I hydrate structure more stable, that displays worse maximum hydrogen content. These results could be helpful for practical use of hydrates for efficient CO2 utilization and H2 transportation.

AB - Using the original approach that utilizes statistical thermodynamic theory that has been developed in our group the phase p-T diagram and hydrate phase composition have been calculated for "CO2 + H2 + H2O". Depending on the CO2 content in the gas phase two hydrates types can be formed: CS-I and CS-II. It has been found that increasing CO2 content in the gas phase drastically reduces hydrate formation pressure and in the same time reduces hydrogen uptake by the hydrate. While pure H2 hydrates have CS-II structure, addition of more than 2 mol.% of CO2 into the gas phase makes CS-I hydrate structure more stable, that displays worse maximum hydrogen content. These results could be helpful for practical use of hydrates for efficient CO2 utilization and H2 transportation.

KW - HYDROGEN CLUSTERS

KW - PHASE-DIAGRAM

KW - CLATHRATE

UR - http://www.scopus.com/inward/record.url?scp=85076476976&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1359/1/012047

DO - 10.1088/1742-6596/1359/1/012047

M3 - Conference article

AN - SCOPUS:85076476976

VL - 1359

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012047

T2 - 4th All-Russian Scientific Conference Thermophysics and Physical Hydrodynamics with the School for Young Scientists, TPH 2019

Y2 - 15 September 2019 through 22 September 2019

ER -

ID: 22977990