Refrigeration – Storage of solidified or liquified gas – With sorbing or mixing
Reexamination Certificate
2004-08-26
2009-10-27
Ali, Mohammad M (Department: 3744)
Refrigeration
Storage of solidified or liquified gas
With sorbing or mixing
C062S050100
Reexamination Certificate
active
07607310
ABSTRACT:
Systems and processes that facilitate the absorption of natural gas or methane through the interaction of moderate pressure and low temperature into a liquid or liquid vapor medium for storage and transport, and back into a gas for delivery to market. In a preferred embodiment, the absorptive properties of ethane, propane and butane under moderate conditions of temperature and pressure (associated with a novel mixing process) are utilized to store natural gas or methane at more efficient levels of compressed volume ratio than are attainable with natural gas alone under similar holding conditions. The preferred mixing process efficiently combines natural gas or methane with a solvent medium such as liquid ethane, propane, butane, or other suitable fluid, to form a concentrated liquid or liquid vapor mixture suited for storage and transport. The solvent medium is preferably recycled in the conveyance vessel on unloading of the natural gas.
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Agnew Patrick A.
Hall Bruce
Morris Ian
Ali Mohammad M
Orrick Herrington & Sutcliffe LLP
SeaOne Maritime Corp.
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