Phase equilibrium for structure II hydrates formed with krypton co-existing with cyclopentane, cyclopentene, or tetrahydropyran

Satoshi Takeya, Ryo Ohmura

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

This paper reports the pressure-temperature conditions for the vapor + liquid + liquid + hydrate four-phase equilibrium in the systems of krypton and water plus each of the following substances: cyclopentane, cyclopentene, and tetrahydropyran. The pressure ranges of the present measurements in the three systems are (0.116 to 7.664) MPa at temperatures from (283.8 to 308.5) K in the cyclopentane system, (0.121 to 2.047) MPa at temperatures from (280.2 to 297.1) K in the cyclopentene system, and (0.118 to 2.075) MPa at temperatures from (278.8 to 296.7) K in the tetrahydropyran system. These equilibrium pressures are lower by at least 4 MPa than those in the binary krypton + water system. The crystallographic structures of the hydrates are identified to be structure II based on the powder X-ray diffraction measurements.

Original languageEnglish
Pages (from-to)1880-1883
Number of pages4
JournalJournal of Chemical and Engineering Data
Volume51
Issue number5
DOIs
Publication statusPublished - 2006 Sep

Fingerprint

Krypton
Cyclopentanes
Hydrates
Phase equilibria
Temperature
Water
Liquids
X ray powder diffraction
Vapors

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

@article{06205213095948708577232189126e90,
title = "Phase equilibrium for structure II hydrates formed with krypton co-existing with cyclopentane, cyclopentene, or tetrahydropyran",
abstract = "This paper reports the pressure-temperature conditions for the vapor + liquid + liquid + hydrate four-phase equilibrium in the systems of krypton and water plus each of the following substances: cyclopentane, cyclopentene, and tetrahydropyran. The pressure ranges of the present measurements in the three systems are (0.116 to 7.664) MPa at temperatures from (283.8 to 308.5) K in the cyclopentane system, (0.121 to 2.047) MPa at temperatures from (280.2 to 297.1) K in the cyclopentene system, and (0.118 to 2.075) MPa at temperatures from (278.8 to 296.7) K in the tetrahydropyran system. These equilibrium pressures are lower by at least 4 MPa than those in the binary krypton + water system. The crystallographic structures of the hydrates are identified to be structure II based on the powder X-ray diffraction measurements.",
author = "Satoshi Takeya and Ryo Ohmura",
year = "2006",
month = "9",
doi = "10.1021/je060233r",
language = "English",
volume = "51",
pages = "1880--1883",
journal = "Journal of Chemical and Engineering Data",
issn = "0021-9568",
publisher = "American Chemical Society",
number = "5",

}

TY - JOUR

T1 - Phase equilibrium for structure II hydrates formed with krypton co-existing with cyclopentane, cyclopentene, or tetrahydropyran

AU - Takeya, Satoshi

AU - Ohmura, Ryo

PY - 2006/9

Y1 - 2006/9

N2 - This paper reports the pressure-temperature conditions for the vapor + liquid + liquid + hydrate four-phase equilibrium in the systems of krypton and water plus each of the following substances: cyclopentane, cyclopentene, and tetrahydropyran. The pressure ranges of the present measurements in the three systems are (0.116 to 7.664) MPa at temperatures from (283.8 to 308.5) K in the cyclopentane system, (0.121 to 2.047) MPa at temperatures from (280.2 to 297.1) K in the cyclopentene system, and (0.118 to 2.075) MPa at temperatures from (278.8 to 296.7) K in the tetrahydropyran system. These equilibrium pressures are lower by at least 4 MPa than those in the binary krypton + water system. The crystallographic structures of the hydrates are identified to be structure II based on the powder X-ray diffraction measurements.

AB - This paper reports the pressure-temperature conditions for the vapor + liquid + liquid + hydrate four-phase equilibrium in the systems of krypton and water plus each of the following substances: cyclopentane, cyclopentene, and tetrahydropyran. The pressure ranges of the present measurements in the three systems are (0.116 to 7.664) MPa at temperatures from (283.8 to 308.5) K in the cyclopentane system, (0.121 to 2.047) MPa at temperatures from (280.2 to 297.1) K in the cyclopentene system, and (0.118 to 2.075) MPa at temperatures from (278.8 to 296.7) K in the tetrahydropyran system. These equilibrium pressures are lower by at least 4 MPa than those in the binary krypton + water system. The crystallographic structures of the hydrates are identified to be structure II based on the powder X-ray diffraction measurements.

UR - http://www.scopus.com/inward/record.url?scp=33749868035&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749868035&partnerID=8YFLogxK

U2 - 10.1021/je060233r

DO - 10.1021/je060233r

M3 - Article

AN - SCOPUS:33749868035

VL - 51

SP - 1880

EP - 1883

JO - Journal of Chemical and Engineering Data

JF - Journal of Chemical and Engineering Data

SN - 0021-9568

IS - 5

ER -