Methods and systems for underwater gas pressurization and liquefaction

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United States of America Patent

PATENT NO 9664441
SERIAL NO

13950317

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Abstract

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Underwater gas pressurization units and liquefaction systems, as well as pressurization and liquefaction methods are provided. Gas is compressed hydraulically by a rising pressurization liquid that is separated from the gas by a water immiscible liquid layer on top of an aqueous salt solution. Tall vessels are used to reach a high compression ratio that lowers the liquefaction temperature. The pressurizing liquid is delivered gravitationally, after gasification, transport to smaller water depths and condensation. Cooling units are used to liquefy the compressed gas. A cascade of compression and cooling units may be used with sequentially higher liquefaction temperatures, which allow eventual cooling by sea water. The pressurizing liquid, dimensions of the vessels, the delivery unit, the coolants and the implementation of the cooling units are selected according to the sea location, to enable natural gas liquefaction in proximity to the gas source.

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Patent Owner(s)

  • S.G.B.D. TECHNOLOGIES LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brodt, Alexander Beer Sheva, IL 7 12

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