Gas treatment system using supersonic separators
AssigneeFMC Kongsberg Subsea AS
InventorsErik Baggerud, Robert Perry, Jostein Kolbu
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Abstract
A crude natural gas stream treatment system comprising a first supersonic separator and a second supersonic separator, wherein the first supersonic separator comprises a crude gas inlet, a dry gas outlet and a first liquid outlet; wherein the second supersonic separator comprises a dry gas inlet, a treated gas outlet and a second liquid gas outlet, and wherein the dry gas outlet is in fluid communication with the dry gas inlet is disclosed.
Claims29
A crude natural gas stream treatment system comprising:
- a first supersonic separator which comprises a crude gas inlet, a dry gas outlet and a first liquid outlet;
- a second supersonic separator which comprises a dry gas inlet, a treated gas outlet and a second liquid outlet;
- wherein the dry gas outlet is in fluid communication with the dry gas inlet;
- and
- a first heat exchanger which comprises a cooling medium inlet in fluid communication with the treated gas outlet, a cooling medium outlet in fluid communication with a treated gas inlet, an inlet for a medium to be cooled, said inlet being in fluid communication with the dry gas outlet, and a cooled fluid outlet in fluid communication with the dry gas inlet.
A crude natural gas stream treatment system comprising:
- a first supersonic separator which comprises a crude gas inlet, a dry gas outlet and a first liquid outlet;
- and
- a second supersonic separator which comprises a dry gas inlet, a treated gas outlet and a second liquid outlet;
- wherein the dry gas outlet is in fluid communication with the dry gas inlet;
- and
- wherein during operation of the system a treated gas from the treated gas outlet is heat exchanged with a dry gas from the dry gas outlet after dehydration in the first supersonic separator.
A crude natural gas stream treatment system comprising:
- a first supersonic separator which comprises a crude gas inlet, a dry gas outlet and a first liquid outlet;
- and
- a second supersonic separator which comprises a dry gas inlet, a treated gas outlet and a second liquid outlet;
- wherein the dry gas outlet is in fluid communication with the dry gas inlet;
- and
- wherein during operation of the system a dry gas from the dry gas outlet is cooled in a heat exchanger before entering the second supersonic separator.
(canceled)
A crude natural gas treatment method comprising:
- passing crude natural gas through a first supersonic separator and a second supersonic separate;
- wherein in the first supersonic separator the crude natural gas is cooled and a first condensed liquid stream is separated off to thereby provide a dry gas stream;
- and
- wherein in the second supersonic separator the dry gas is cooled and a second condensed liquid stream is separated off to thereby provide a treated gas stream;
- wherein said second condensed liquid stream comprises mainly CO2 and C2 to C4 hydrocarbons.
(canceled)
Dependencies are inferred from the claim text.