Method for separating olefins with gentle cleavage

The invention relates to a method for producing olefins, in which a hydrocarbon-containing charge material is introduced into a cracking furnace, where longer-chain hydrocarbons of the hydrocarbon-containing charge material are cleaved at least in part into shorter-chain olefins comprising ethylene...

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Bibliographische Detailangaben
Hauptverfasser:	PHAM DUC, TUAT, SCHMIGALLE, HOLGER
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES ORGANIC CHEMISTRY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL 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 SEPARATION TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a method for producing olefins, in which a hydrocarbon-containing charge material is introduced into a cracking furnace, where longer-chain hydrocarbons of the hydrocarbon-containing charge material are cleaved at least in part into shorter-chain olefins comprising ethylene and propylene. Cracked gas (1) formed in the cleavage is successively conducted through a lower section (11) and an upper section (12) of a wash column (10) in countercurrent to a liquid washing agent (43, 31). A petroleum-ether-rich fraction (43) in the lower section (11) of the wash column (10) and a water-rich fraction (31) in the upper section (11) of the wash column (10) are used as the washing agent (43, 31). The present invention likewise relates to a system designed to perform the method.