Effect of heat transfer on the kinetics of methane hydrate dissociation

Результат исследований: Материалы для журналаСтатья

32 Цитирования (Scopus)

Выдержка

The dissociation of methane hydrate under external pressure of 1 bar is studied experimentally. Non-isothermal dissociation is fundamentally different from the quasi-isothermal case. The increase in the density of heat flux from 255 to 13 700 W m 2 results in 9-fold increase in the dissociation rate of methane hydrate. Different variations of clathrates dissociation may be observed depending on the heat flux magnitude: (1) without self-preservation (high heat fluxes), (2) a partial self-preservation with one minimum of dissociation rate, and (3) a partial self-preservation with two minimums (low heat fluxes). When describing dissociation kinetics of the spherical granules, it is important to know the time dependence of the ice layer thickness growth. It is shown that not the curvature, but the heat flux value regulates the dissociation rate and the change in diffusion. A drastic change in dissociation rate is caused by a pressure decrease in pores.

Язык оригиналаАнглийский
Страницы (с-по)34-37
Число страниц4
ЖурналChemical Physics Letters
Том583
DOI
СостояниеОпубликовано - 1 янв 2013
Опубликовано для внешнего пользованияДа

Отпечаток

Methane
Hydrates
hydrates
methane
heat transfer
dissociation
Heat transfer
Kinetics
kinetics
Heat flux
heat flux
clathrates
Ice
time dependence
ice
curvature
porosity

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Цитировать

Effect of heat transfer on the kinetics of methane hydrate dissociation. / Misyura, S. Ya.

В: Chemical Physics Letters, Том 583, 01.01.2013, стр. 34-37.

Результат исследований: Материалы для журналаСтатья

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