Methods for reactivating zeolites

A zeolite of type 5A, which has been used to separate normal paraffins from a hydrocarbon mixture containing normal paraffins by bringing the hydrocarbon mixture into contact with the zeolite whereby the zeolite absorbs the normal paraffins and then desorbing the normal paraffins from the zeolite by...

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Bibliographische Detailangaben
Hauptverfasser:	STURMER, EDITH, FURTIG, HELMUT, REIF, HANS-HEINRICH, KALB, KARSTEN, WEHNER, KLAUS, HADICKE, UDO, SCHICKER, OTTO, NEMITZ, GUNTER, KNOLL, HERBERT, SCHMIDT, KARL-HEINZ, SCHNICK, WALTRAUD, ROSCHER, WOLFGANG, KAISER, MANFRED, WIDMANN, LUTZ, SEIDEL, WELKER, JURGEN, HOSE, WERNER, DOLLASE, WOLARD, RUDIGER
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES 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 TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A zeolite of type 5A, which has been used to separate normal paraffins from a hydrocarbon mixture containing normal paraffins by bringing the hydrocarbon mixture into contact with the zeolite whereby the zeolite absorbs the normal paraffins and then desorbing the normal paraffins from the zeolite by contacting the zeolite with water-containing ammonia vapour, is reactivated by first contacting the zeolite with at least one of water, aqueous solutions and water-containing gases at a temperature below 350 DEG C and then heating the zeolite to a temperature above 350 DEG C.