CRYOGENIC SYSTEMS FOR REMOVING ACID GASES FROM A HYDROCARBON GAS STREAM USING CO-CURRENT SEPARATION DEVICES

A SYSTEM FOR REMOVING ACID GASES FROM A RAW GAS STREAM IS PROVIDED. THE SYSTEM INCLUDES A CRYOGENIC DISTILLATION COLUMN. THE CRYOGENIC DISTILLATION COLUMN (240, 340) RECEIVES A DEHYDRATED AND CHILLED SOUR GAS STREAM, AND SEPARATES THE SOUR GAS STREAM INTO AN OVERHEAD GAS STREAM (246, 346) COMPRISED...

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Bibliographische Detailangaben
1. Verfasser:	PAUL SCOTT NORTHROP
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING MIXTURES BY PRESSURE AND COLD TREATMENT REFRIGERATION OR COOLING WEAPONS
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Zusammenfassung:	A SYSTEM FOR REMOVING ACID GASES FROM A RAW GAS STREAM IS PROVIDED. THE SYSTEM INCLUDES A CRYOGENIC DISTILLATION COLUMN. THE CRYOGENIC DISTILLATION COLUMN (240, 340) RECEIVES A DEHYDRATED AND CHILLED SOUR GAS STREAM, AND SEPARATES THE SOUR GAS STREAM INTO AN OVERHEAD GAS STREAM (246, 346) COMPRISED PRIMARILY OF METHANE, AND A BOTTOM ACID GAS STREAM COMPRISED PRIMARILY OF CARBON DIOXIDE. THE SYSTEM ALSO INCLUDES A SERIES OF CO-CURRENT CONTACTORS. THE CO-CURRENT CONTACTORS MAY BE PLACED IN SERIES TO RECEIVE THE BOTTOM ACID GAS STREAM (248, 348) AND RECAPTURE ANY ENTRAINED METHANE GAS. ALTERNATIVELY OR IN ADDITION, THE CO-CURRENT CONTACTORS MAY BE PLACED IN SERIES TO RECEIVE THE OVERHEAD GAS STREAM (246, 346), AND SWEETEN IT USING A REFLUX LIQUID SUCH AS METHANE. IN THIS INSTANCE, THE SWEETENED GAS IS OPTIONALLY LIQUEFIED AND DELIVERED FOR COMMERCIAL SALE, OR IS USED AS FUEL GAS ON-SITE. (FIG. 2)