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SYSTEM FOR ENHANCED GAS TURBINE PERFORMANCE IN A LIQUEFIED NATURAL GAS FACILITY

  • US 20100058801A1
  • Filed: 08/28/2009
  • Published: 03/11/2010
  • Est. Priority Date: 09/09/2008
  • Status: Active Grant
First Claim
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1. A process for liquefying a natural gas stream, said process comprising:

  • (a) cooling at least a portion of said natural gas stream via indirect heat exchange with a first refrigerant in a first refrigeration cycle to thereby produce a cooled natural gas stream;

    (b) further cooling at least a portion of said cooled natural gas stream via indirect heat exchange with a second refrigerant in a second refrigeration cycle to thereby provide a further cooled natural gas stream; and

    (c) cooling a partially compressed air stream via indirect heat exchange with a primary coolant to thereby provide a cooled partially compressed air stream, wherein said partially compressed air stream is withdrawn from an intermediate compression stage of a gas turbine used to drive at least one refrigerant compressor associated with said first and/or said second refrigeration cycle.

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