Gas hydrates and semiclathrate hydrates for H2 and CH4 storage: Kinetics, capacity and stability

Andrew I. Cooper, Weixing Wang, Ben Carter, Christopher Bray, John Bacsa, Alexander Steiner, Fabing Su, Dave J. Adams, Cate Cropper, Gillian Overend, Jonathan V. M. Weaver, James T. A. Jones, Jonathan A. Iggo, Yaroslav Z. Khimyak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Gas hydrates (or clathrates) have potential advantages as materials for hydrogen or methane storage with respect to other gas storage technologies. For example, hydrates can trap gases such as hydrogen close to ambient temperature, quite unlike porous materials where cryogenic temperatures are required. We show that substantial quantities of methane (around 45 v/v) can be stored reversibly in certain semi-clathrate hydrate structures at atmospheric pressure and ambient temperature, again in contrast to physisorption approaches. Several challenges exist: for example, the quantity of hydrogen stored in gas hydrates is well below the Department of Energy (DoE) target of 6 wt. %. By contrast, pure methane hydrate in "dry water" form stores 175 v/v gas: that is, very close to the corresponding DoE target. This presentation will discuss approaches to storing gases (H2 and CH4) in hydrated form, in particular strategies for accelerating hydrate formation kinetics, minimizing storage pressure (ideally to 1 atm), and maximising gas storage capacity.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
Publication statusPublished - 2009
Externally publishedYes
Event237th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Salt Lake City, UT, United States
Duration: 22 Mar 200926 Mar 2009

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Conference

Conference237th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CitySalt Lake City, UT
Period22/03/0926/03/09

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