学術雑誌論文

学術雑誌論文

Journal of Chemical and Engineering Data. 2014, 59(7), p. 2294-2297

Thermodynamic stability boundaries and structures of methane + monohalogenated cyclopentane mixed hydrates

American Chemical Society

英語

2014-07-10

https://doi.org/10.1021/je500349v

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/je500349v.

Thermodynamic stability boundaries of the mixed hydrate composed of methane and fluorocyclopentane, chlorocyclopentane, or bromocyclopentane were investigated in a temperature range of (274.17 to 306.19) K and pressures up to 9.93 MPa under the four-phase (hydrate, aqueous, monohalogenated cyclopentane-rich liquid, and gas phases) equilibrium conditions. Also, the crystal structure of the methane + chlorocyclopentane hydrate was determined by means of powder X-ray diffractometry. The each boundary is laid at a pressure lower and a temperature higher than that of the simple methane hydrate. Especially, the methane + fluorocyclopentane hydrate system has the lowest equilibrium pressure among three mixed hydrate systems investigated in the present study. The powder X-ray diffraction patterns reveal that a guest species larger than chrolocyclopentane and smaller than bromocyclopentane is at the border between structure-II and structure-H hydrate formers. © 2014 American Chemical Society.

© 2014 American Chemical Society.

100986

Thermodynamic stability boundaries and structures of methane + monohalogenated cyclopentane mixed hydrates

American Chemical Society

英語

2014-07-10

Journal of Chemical and Engineering Data

59

7

2294

2297

https://doi.org/10.1021/je500349v

https://hdl.handle.net/11094/100986