Correlation of the growth rate of the hydrate layer at a guest/liquid-water interface to mass transfer resistance

Masatoshi Kishimoto, Ryo Ohmura

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Growth rate of a hydrate layer at the guest/liquid-water interface is analyzed considering the conjugate process of the mass-transfer and hydrate crystal growth. Hydrate-layer growth rate data in the literature are often compiled according to the system subcooling (ΔT ≡ T eq - T ex, where T eq is the equilibrium dissociation temperature of the hydrate and T ex is the system temperature), suggesting predominant heat transfer limitations. In this paper, we investigate how the existing data on hydrate-layer growth is better correlated to mass transfer of the guest species in liquid water in three-phase equilibrium with bulk guest fluid and hydrate. We have analyzed the conjugate processes of mass-transfer/hydrate-layer-growth following our previous study on the hydrate crystal growth into liquid water saturated with a guest substance. A dimensionless parameter representing the hydrate-layer growth rate is derived from the analysis. This analysis is based on the idea that the growth rate is controlled by the mass transfer of the hydrate-guest substance, dissolved in the bulk of liquid water, to the front of the growing hydrate-layer along the guest/water interface. The variations in the hydrate-layer growth rate observed in the previous studies are related to the dimensionless parameter.

Original languageEnglish
Pages (from-to)92-100
Number of pages9
JournalEnergies
Volume5
Issue number1
DOIs
Publication statusPublished - 2012 Jan

Fingerprint

Mass Transfer
Hydrates
Mass transfer
Liquid
Water
Liquids
Crystal Growth
Dimensionless
Phase Equilibria
Crystal growth
Resistance
Heat Transfer
Fluid
Phase equilibria
Heat transfer

Keywords

  • Clathrate hydrate
  • Crystal growth rate
  • Mass transfer

ASJC Scopus subject areas

  • Computer Science(all)

Cite this

Correlation of the growth rate of the hydrate layer at a guest/liquid-water interface to mass transfer resistance. / Kishimoto, Masatoshi; Ohmura, Ryo.

In: Energies, Vol. 5, No. 1, 01.2012, p. 92-100.

Research output: Contribution to journalArticle

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