LNG system employing refluxed heavies removal column with...

Details LNG system employing refluxed heavies removal column with... LNG system employing refluxed heavies removal column with...

2004-06-24

2009-10-13

Doerrler, William C (Department: 3744)

Refrigeration

Cryogenic treatment of gas or gas mixture

Liquefaction

C062S620000, C062S625000

Reexamination Certificate

active

07600395

ABSTRACT:
A process and apparatus for the liquefaction of natural gas including an improved heavy hydrocarbon removal column with overhead condensing and refluxing. Particularly, a methane-rich stream exiting a propane refrigerant cycle is delivered to a heavies removal column, and the heavies depleted vapor from the column is at least partially condensed and the liquid portion provided as reflux to the heavies removal column.

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