Study on Reuse of Dry Water to Store Methane in a Hydrate Form

Gao Wei Hu; Yu Guang Ye; Cheng Feng Li; Chang Ling Liu; Qing Guo Meng

doi:10.4028/www.scientific.net/AMR.518-523.3200

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523Study on Reuse of Dry Water to Store Methane in a...

Study on Reuse of Dry Water to Store Methane in a Hydrate Form

Abstract:

Dry water (DW) is a powder composed of hydrophobic silica surrounding tiny water droplets. It’s recently demonstrated to be an effective medium for storage methane in a hydrated form. But the recyclability of DW is not so clear at present. Here we used a dedicated pressure cell to form four dry water methane hydrates samples (DW-MH), corresponding to four cycle-types of hydrate formation and dissociation, to investigate the reuse of dry water. The results show that part of water escape from DW and become “free water” after DW-MH is dissociated. The free water is hard to form hydrate during the next cycle of hydrate formation. As a result, the gas storage capacity of DW-MH decreases dramatically as the using times of DW increases.

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Periodical:

Advanced Materials Research (Volumes 518-523)

Pages:

3200-3203

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.518-523.3200

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Online since:

May 2012

Authors:

Gao Wei Hu, Yu Guang Ye, Cheng Feng Li, Chang Ling Liu, Qing Guo Meng

Keywords:

Dry Water, Methane Gas Hydrate, Methane Storage, Raman Spectroscopy, Recyclability

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