High-pressure phase equilibria of tertiary-butylamine hydrates with and without hydrogen

Tanabe, Tomohiro; Sugahara, Takeshi; Kitamura, Kazuma; Yamazaki, Takahiro; Fujimoto, Takashi; Ohgaki, Kazunari

doi:https://doi.org/10.1021/je5003016

High-pressure phase equilibria of tertiary-butylamine hydrates with and without hydrogen

Tanabe, Tomohiro; Sugahara, Takeshi; Kitamura, Kazuma et al.

Journal of Chemical and Engineering Data, 2015, 60(2), 222-227

アクセス数:129件（2025-03-14 02:31 集計）

固定URL: https://hdl.handle.net/11094/91297

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タイトル	High-pressure phase equilibria of tertiary-butylamine hydrates with and without hydrogen
著者	著者名 Tanabe, Tomohiro
	NRID 1000020335384 1000020335384 ORCID 0000-0002-5236-5605 0000-0002-5236-5605 researchmap permalink read0191169 read0191169 Scopus Author ID 56212469300 56212469300 著者名 Sugahara, Takeshi
	著者名 Kitamura, Kazuma
	著者名 Yamazaki, Takahiro
	著者名 Fujimoto, Takashi
	NRID 1000080107078 1000080107078 著者名 Ohgaki, Kazunari
内容	Tomohiro Tanabe, Takeshi Sugahara, Kazuma Kitamura et al. High-Pressure Phase Equilibria of Tertiary-Butylamine Hydrates with and without Hydrogen, Journal of Chemical & Engineering Data, 60 (2), 222–227, February 12, © 2015 American Chemical Society. https://doi.org/10.1021/je5003016
抄録	Thermodynamic stability boundaries of the simple tertiary-butylamine (t-BA) hydrate and t-BA+hydrogen (H2) mixed hydrate were investigated at a pressure up to approximately 100 MPa. All experimental results from the phase equilibrium measurement, in situ Raman spectroscopy, and powder X-ray diffraction analysis arrive at the single conclusion that the t-BA hydrates, under pressurization with H2, are transformed from the structure VI simple t-BA hydrate into the structure II t-BA+H2 mixed hydrate. The phase transition point on the hydrate stability boundary in the mother aqueous solutions with the t-BA mole fractions (xt-BA) of 0.056 and 0.093 is located at (2.35 MPa, 267.39 K) and (25.3 MPa, 274.19 K), respectively. On the other hand, in the case of the pressurization by decreasing the sample volume instead of supplying H2, the simple t-BA hydrate retains the structure VI at pressures up to 112 MPa on the thermodynamic stability boundary.
出版者	American Chemical Society
収録物名	Journal of Chemical and Engineering Data
巻(号)	60(2)
ページ	222-227
刊行年月	2015-02-12
言語	英語
ハンドルURL	https://hdl.handle.net/11094/91297
PISSN	00219568
eISSN	15205134
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1021/je5003016
アクセス権	open access
権利情報	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Chemical and Engineering Data, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/je5003016.
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Journal of Chemical and Engineering Data. 2015, 60(2), p. 222-227
DC.title	High-pressure phase equilibria of tertiary-butylamine hydrates with and without hydrogen
DC.creator	Tanabe, Tomohiro
	Sugahara, Takeshi
	Kitamura, Kazuma
	Yamazaki, Takahiro
	Fujimoto, Takashi
	Ohgaki, Kazunari
DC.publisher	American Chemical Society
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2015-02-12
DC.identifier	https://doi.org/10.1021/je5003016
DC.description	Tomohiro Tanabe, Takeshi Sugahara, Kazuma Kitamura et al. High-Pressure Phase Equilibria of Tertiary-Butylamine Hydrates with and without Hydrogen, Journal of Chemical & Engineering Data, 60 (2), 222–227, February 12, © 2015 American Chemical Society. https://doi.org/10.1021/je5003016
DCTERMS.abstract	Thermodynamic stability boundaries of the simple tertiary-butylamine (t-BA) hydrate and t-BA+hydrogen (H2) mixed hydrate were investigated at a pressure up to approximately 100 MPa. All experimental results from the phase equilibrium measurement, in situ Raman spectroscopy, and powder X-ray diffraction analysis arrive at the single conclusion that the t-BA hydrates, under pressurization with H2, are transformed from the structure VI simple t-BA hydrate into the structure II t-BA+H2 mixed hydrate. The phase transition point on the hydrate stability boundary in the mother aqueous solutions with the t-BA mole fractions (xt-BA) of 0.056 and 0.093 is located at (2.35 MPa, 267.39 K) and (25.3 MPa, 274.19 K), respectively. On the other hand, in the case of the pressurization by decreasing the sample volume instead of supplying H2, the simple t-BA hydrate retains the structure VI at pressures up to 112 MPa on the thermodynamic stability boundary.
DC.rights	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Chemical and Engineering Data, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/je5003016.
DC.format	91297
citation_title	High-pressure phase equilibria of tertiary-butylamine hydrates with and without hydrogen
citation_author	Tanabe, Tomohiro
	Sugahara, Takeshi
	Kitamura, Kazuma
	Yamazaki, Takahiro
	Fujimoto, Takashi
	Ohgaki, Kazunari
citation_publisher	American Chemical Society
citation_language	英語
citation_date	2015-02-12
citation_journal_title	Journal of Chemical and Engineering Data
citation_volume	60
citation_issue	2
citation_firstpage	222
citation_lastpage	227
citation_doi	https://doi.org/10.1021/je5003016
citation_public_url	https://hdl.handle.net/11094/91297

High-pressure phase equilibria of tertiary-butylamine hydrates with and without hydrogen

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