CATALYST FOR PYROLYSIS OF HYDROCARBON FEEDSTOCK, METHOD FOR PREPARATION THEREOF, AND METHOD OF PYROLYSIS OF HYDROCARBON FEEDSTOCK INTO C2-C4-OLEFINS

FIELD: catalyst for petrochemical processes. SUBSTANCE: invention provides alumina-based pyrolysis catalyst prepared in heat treatment process and containing 10.0-40.0% at least one group IIA metal oxide and 0.5-5.0% boron and/or phosphorus oxide. Catalyst is prepared by dry mixing of starting at le...

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Bibliographische Detailangaben
Hauptverfasser:	EROFEEV V.I, KUZNETSOV N.N, KOVAL' L.M, ERMIZIN K.V, TROFIMOVA A.S
Format:	Patent
Sprache:	eng ; rus
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:	FIELD: catalyst for petrochemical processes. SUBSTANCE: invention provides alumina-based pyrolysis catalyst prepared in heat treatment process and containing 10.0-40.0% at least one group IIA metal oxide and 0.5-5.0% boron and/or phosphorus oxide. Catalyst is prepared by dry mixing of starting at least one group IIA metal oxide and aluminum compounds with, as strengthening additives, 0.1 to 5.0% boron and/or phosphorus compounds followed by mechanochemical treatment in vibrating mil during 0.1 to 72 h, granulation, drying, and formation of catalyst by heating it for 0.1 to 24 h at 600-1200 C. Mechanochemical treatment and high-temperature treatment lead to conversion of at least one group IIA metal oxide and alumina into cements having composition C2-C4 wherein n=1-6 and MeO represents at least one group IIA metal oxide. Invention describes catalytic pyrolysis process in presence of above-described catalyst using, as hydrocarbon feed stock, straight-run gasoline fraction 25-185 C or propane-butane fraction. EFFECT: increased catalytic activity and selectivity. 7 cl, 3 tbl