CATALIZZATORE FISCHER-TROPSCH A LETTO FISSO E SUA PRODUZIONE

Catalyst material (I) for Fischer-Tropsch (F-T) processes contains active carbon (II). Process for the prodn. of an Fe-based catalyst (I) comprises adding 1-80 wt.% (II) (w.r.t. amt. of Fe) to one of the catalyst precursors at any stage before extrusion. (I) is useful for the low-temp. variant of th...

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Bibliographische Detailangaben
Hauptverfasser:	DRY MARK EBERHARD, OLIVIER ANTHONY JOHN, DE HAAN ROBERT, DUVENHAGE DAWID JAKOBUS
Format:	Patent
Sprache:	ita
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF CRACKING HYDROCARBON OILS FUELS INORGANIC CHEMISTRY LUBRICANTS METALLURGY MINERAL WAXES NON-METALLIC ELEMENTS 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 TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Catalyst material (I) for Fischer-Tropsch (F-T) processes contains active carbon (II). Process for the prodn. of an Fe-based catalyst (I) comprises adding 1-80 wt.% (II) (w.r.t. amt. of Fe) to one of the catalyst precursors at any stage before extrusion. (I) is useful for the low-temp. variant of the F-T process, esp. as a solid-bed catalyst; amt. of (II) is 1-80 (pref. 1-50, esp. 1-20, e.g. 5-10) wt.% w.r.t. Fe, and (II) is uniformly distributed in (I); at least 50 (pref. at least 75, esp. at least 90) wt.% of the particles of (II) are smaller than 100 microns, pref. with at least 90 wt.% smaller than 45 microns, or the same proportion is in the size range 850-1200 microns; (II) is produced from pinewood, tanniferous acacia or coconut shells, and is preactivated with steam or mineral acid. USE/ADVANTAGE - (I) is useful as an F-T catalyst (part of main claim). A process is claimed for the prodn. of hydrocarbon waxes with improved colour, by contacting a suitable synthesis gas with (I) in a solid-bed reactor at elevated temp. and pressure; paraffin wax obtd. by this process is claimed as such. Catalyst (I) gives wax with a high Saybolt no. (pref. at least 20) directly, without the need for subsequent hydrogenation.