Improved method for activating an iron-based fischer-tropsch catalyst

Abstract A method for transforming at least a part of the catalyst precursor hematite into x-carbide (Fe5 C2) and C'-carbide (FeC 2-2 ) without a large amount of fines generation. This method slows the transformation of the hematite to iron carbides by reducing the partial pressure of the synth...

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Hauptverfasser:	BOHN, MARK S, YAKOBSON, DENNIS L, PHILIPP, ELIJAH C
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY 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 TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Zusammenfassung:	Abstract A method for transforming at least a part of the catalyst precursor hematite into x-carbide (Fe5 C2) and C'-carbide (FeC 2-2 ) without a large amount of fines generation. This method slows the transformation of the hematite to iron carbides by reducing the partial pressure of the synthesis gas by inert gas dilution. The activation time is about three to about five hours.