Method for activating an iron-based fischer-tropsch catalyst
US7544719B2 · kind B2 · utility
1Cited by
3References
18Claims
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Key dates
| Filing date | Jul 12, 2006 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Jul 23, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2/332
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for transforming at least a part of the catalyst precursor hematite into χ-carbide (Fe5C2) and ε′-carbide (FeC2.2) 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.