VERFAHREN ZUR GEWINNUNG VON C2+ KOHLENWASSERSTOFF

C2 and C3 hydrocarbons, particularly ethylene and propylene, are recovered from refinery or petrochemical plant gas mixtures by cooling and fractionating a feed gas mixture containing these hydrocarbons and lighter components. Refrigeration for the process is provided by a closed-loop gas expander (...

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Bibliographische Detailangaben
Hauptverfasser:	ROWLES, HOWARD CHARLES, HOWARD, LEE JARVIS, ROBERTS, MARK JULIAN
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING CHEMISTRY COMBINED HEATING AND REFRIGERATION SYSTEMS CRACKING HYDROCARBON OILS FUELS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS LUBRICANTS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING METALLURGY MINERAL WAXES MIXTURES BY PRESSURE AND COLD TREATMENT PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA REFRIGERATION OR COOLING TECHNICAL GASES CONTAINING CARBON MONOXIDE WEAPONS
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Beschreibung
Zusammenfassung:	C2 and C3 hydrocarbons, particularly ethylene and propylene, are recovered from refinery or petrochemical plant gas mixtures by cooling and fractionating a feed gas mixture containing these hydrocarbons and lighter components. Refrigeration for the process is provided by a closed-loop gas expander (147) refrigeration process cycle which preferably uses nitrogen as the recirculating refrigerant. Cooling and fractionation may be effected in a dephlegmator (121).