Back to results
US 2006/0075776 A1Published application
Method for providing cooling for gas liquefaction
AssigneePraxair Technology, Inc.
InventorHenry Howard
Life of this patent
Estimating the term…
Abstract
A method for generating refrigeration for cooling a product gas wherein a first or working gas undergoes a staged expansion to a first temperature and a subsequent turboexpansion to a second higher temperature and both the expanded gas and the turboexpanded gas provide cooling to the product gas.
Claims6
A method for cooling a gas for liquefaction comprising:
- (A) cooling a working gas and expanding the cooled working gas to provide an expanded gas at a first temperature;
- (B) warming the expanded gas to provide cooling to a product gas;
- (C) turboexpanding at least a portion of the warmed expanded gas to provide a turboexpanded gas at a second temperature which is greater than the first temperature;
- and
- (D) warming the turboexpanded gas to provide cooling to the working gas and to the product gas.
2 more elements
Dependencies are inferred from the claim text.