LNG system employing optimized heat exchangers to provide...

Details LNG system employing optimized heat exchangers to provide... LNG system employing optimized heat exchangers to provide...

2007-12-25

2007-12-25

Tyler, Cheryl (Department: 3744)

Refrigeration

Cryogenic treatment of gas or gas mixture

Liquefaction

C062S614000, C062S611000, C062S630000, C062S627000, C062S903000, C165S166000

Reexamination Certificate

active

10972795

ABSTRACT:
An improved apparatus and method for providing reflux to a refluxed heavies removal column of a LNG facility. The apparatus comprises stacked vertical core-in-kettle heat exchangers and an economizer disposed between the heat exchangers. The reflux stream originates from the methane-rich refrigerant of the methane refrigeration cycle. The liquid reflux stream generated by cooling the methane-rich stream in the vertical heat exchangers via indirect heat exchange with an upstream refrigerant.

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