Crystal growth of clathrate hydrate formed with H2 + CO2 mixed gas and tetrahydropyran

Abstract Hydrate-based gas separation technology is applicable to the CO2 capture and storage from synthesis gas mixture generated through gasification of fuel sources including biomass. This paper reports visual observations of crystal growth dynamics and crystal morphology of hydrate formed in the...

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Autores principales:	Meku Maruyama, Riku Matsuura, Ryo Ohmura
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/873ca482b3a1489a9eaf7bdb0cb2c419
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spelling	oai:doaj.org-article:873ca482b3a1489a9eaf7bdb0cb2c4192021-12-02T17:50:57ZCrystal growth of clathrate hydrate formed with H2 + CO2 mixed gas and tetrahydropyran10.1038/s41598-021-90802-62045-2322https://doaj.org/article/873ca482b3a1489a9eaf7bdb0cb2c4192021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90802-6https://doaj.org/toc/2045-2322Abstract Hydrate-based gas separation technology is applicable to the CO2 capture and storage from synthesis gas mixture generated through gasification of fuel sources including biomass. This paper reports visual observations of crystal growth dynamics and crystal morphology of hydrate formed in the H2 + CO2 + tetrahydropyran (THP) + water system with a target for developing the hydrate-based CO2 separation process design. Experiments were conducted at a temperature range of 279.5–284.9 K under the pressure of 4.9–5.3 MPa. To simulate the synthesis gas, gas composition in the gas phase was maintained around H2:CO2 = 0.6:0.4 in mole fraction. Hydrate crystals were formed and extended along the THP/water interface. After the complete coverage of the interface to shape a polycrystalline shell, hydrate crystals continued to grow further into the bulk of liquid water. The individual crystals were identified as hexagonal, tetragonal and other polygonal-shaped formations. The crystal growth rate and the crystal size varied depending on thermodynamic conditions. Implications from the obtained results for the arrangement of operating conditions at the hydrate formation-, transportation-, and dissociation processes are discussed.Meku MaruyamaRiku MatsuuraRyo OhmuraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Meku Maruyama Riku Matsuura Ryo Ohmura Crystal growth of clathrate hydrate formed with H2 + CO2 mixed gas and tetrahydropyran
description	Abstract Hydrate-based gas separation technology is applicable to the CO2 capture and storage from synthesis gas mixture generated through gasification of fuel sources including biomass. This paper reports visual observations of crystal growth dynamics and crystal morphology of hydrate formed in the H2 + CO2 + tetrahydropyran (THP) + water system with a target for developing the hydrate-based CO2 separation process design. Experiments were conducted at a temperature range of 279.5–284.9 K under the pressure of 4.9–5.3 MPa. To simulate the synthesis gas, gas composition in the gas phase was maintained around H2:CO2 = 0.6:0.4 in mole fraction. Hydrate crystals were formed and extended along the THP/water interface. After the complete coverage of the interface to shape a polycrystalline shell, hydrate crystals continued to grow further into the bulk of liquid water. The individual crystals were identified as hexagonal, tetragonal and other polygonal-shaped formations. The crystal growth rate and the crystal size varied depending on thermodynamic conditions. Implications from the obtained results for the arrangement of operating conditions at the hydrate formation-, transportation-, and dissociation processes are discussed.
format	article
author	Meku Maruyama Riku Matsuura Ryo Ohmura
author_facet	Meku Maruyama Riku Matsuura Ryo Ohmura
author_sort	Meku Maruyama
title	Crystal growth of clathrate hydrate formed with H2 + CO2 mixed gas and tetrahydropyran
title_short	Crystal growth of clathrate hydrate formed with H2 + CO2 mixed gas and tetrahydropyran
title_full	Crystal growth of clathrate hydrate formed with H2 + CO2 mixed gas and tetrahydropyran
title_fullStr	Crystal growth of clathrate hydrate formed with H2 + CO2 mixed gas and tetrahydropyran
title_full_unstemmed	Crystal growth of clathrate hydrate formed with H2 + CO2 mixed gas and tetrahydropyran
title_sort	crystal growth of clathrate hydrate formed with h2 + co2 mixed gas and tetrahydropyran
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/873ca482b3a1489a9eaf7bdb0cb2c419
work_keys_str_mv	AT mekumaruyama crystalgrowthofclathratehydrateformedwithh2co2mixedgasandtetrahydropyran AT rikumatsuura crystalgrowthofclathratehydrateformedwithh2co2mixedgasandtetrahydropyran AT ryoohmura crystalgrowthofclathratehydrateformedwithh2co2mixedgasandtetrahydropyran
_version_	1718379296172539904

Crystal growth of clathrate hydrate formed with H2 + CO2 mixed gas and tetrahydropyran

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