Method and apparatus for mixing liquefied gases
AssigneeThe BOC Group, Inc.
InventorsNiccola Butler, Catharine Sarah Paige, Michael Ernest Garrett
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Abstract
A method of and apparatus for mixing two cryogenic liquids in which a first amount of first cryogenic liquid is introduced into a vented vessel having one or more vents. The vent or vents are then closed and a second amount of a second cryogenic level is introduced into the closed vessel at a level above the surface of the first cryogenic liquid in the vessel. The second cryogenic liquid has a greater density or both a greater density and a higher boiling point temperature than that of the first cryogenic liquid, thereby to produce a substantially homogeneous cryogenic liquid mixture of predetermined composition.
Claims14
A method of mixing at least two cryogenic liquids comprising:
- introducing a first predetermined amount of a first cryogenic liquid into a vessel which is selectively ventable to atmosphere but otherwise closed;
- introducing a second predetermined amount of a second cryogenic liquid into the substantially closed vessel at a level above the surface of the first cryogenic liquid in the vessel;
- the second cryogenic liquid being of greater density than the first cryogenic liquid, thereby to produce a substantially homogeneous cryogenic liquid mixture of predetermined composition;
- and
- allowing a sufficient period of time to elapse from completing the introduction of the second cryogenic liquid into the vessel for the cryogenic liquids to mix thoroughly before tapping cryogenic liquid mixture from the vessel.
Dependencies are inferred from the claim text.