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US 2004/0176649 A1Published application
Making gas hydrate utilizing ultrafine bubbles and ultra-particulate gas hydrate
AssigneeNational Institute of Advanced Industrial Science and Technology
InventorsMasayoshi Takahashi, Yoshitaka Yamamoto
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Abstract
A method for making gas hydrate comprising generating ultrafine bubbles in an aqueous solution; and spontaneously generating hydrate nuclei by self-compression and collapsing of the ultrafine bubbles.
Claims18
A method for making gas hydrate comprising:
- a) generating ultrafine bubbles in an aqueous solution;
- and
- b) spontaneously generating hydrate nuclei by self-compression and collapsing of the ultrafine bubbles.
An apparatus for making a gas hydrate comprising:
- an ultrafine bubble generator having an aqueous solution inlet, a gas inlet and an outlet for the aqueous solution containing ultrafine bubbles;
- a high pressure vessel with aqueous solution having the ultrafine bubble generator place therein;
- and
- ultrafine bubbles from the bubble generator ascending through the aqueous solution in the high pressure vessel,
- wherein hydrate nuclei are generated in the aqueous solution in the high pressure vessel by self-compression and collapsing of the ultrafine bubbles.
2 more elements
Particulate gas hydrate prepared by the method for making gas hydrate according to a following process:
- a) generating ultrafine bubbles in an aqueous solution;
- and
- b) spontaneously generating hydrate nuclei by self-compression and collapsing of the ultrafine bubbles.
Dependencies are inferred from the claim text.