Diffusion constants and activation energy of methane migration in bulk methane hydrate
We propose to determine the diffusion coefficients of methane in methane hydrate by following in-situ the formation of methane hydrate from well-characterized ice spheres via a shrinking-core modelling developed by us. Gas permeation through bulk hydrate is of major importance in geology and chemical engineering applications and it turns out that in-situ neutron diffraction is probably the most reliable way to establish this quantity. Absolute values of the diffusion constants will be derived and their temperature dependency will give access to the activation energy. Both, diffusion constants and activation energy, will be compared to results from molecular dynamics simulations, which will help to elucidate the mechanism of gas migration.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
KUHS Werner Friedrich; BARTELS Heiner; FALENTY Andrzej; Thomas C. Hansen; KAHMANN Ulf; NUETZMANN Kathrin; QIN Junfeng and SEIDLER Christian. (2013). Diffusion constants and activation energy of methane migration in bulk methane hydrate. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-25-218
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.