Iron/silicon-based catalyst exhibiting high selectivity to C.sub.2 -C.sub.6 .sub.2 Fischer-Tropsch reactions
US4468474A · kind A · utility
16Cited by
2References
8Claims
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Key dates
| Filing date | May 16, 1983 |
| Grant date | Aug 28, 1984 |
| Priority date | — |
| Expiry date | May 16, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2523/745
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Finely divided, hydrogen-activated catalyst compositions comprising iron, silicon and carbon or iron and silicon that selectively convert gaseous mixtures of CO and H.sub.2, at a temperature of about 150.degree.-450.degree. C. and at pressures of about 10-2000 kPa, into reaction mixture containing at least about 75% C.sub.2 -C.sub.6 alkenes and no more than about 25% of CH.sub.4 and undesirable CO.sub.2 by-products are disclosed. A wide range of iron/silicon-based catalyst compositions are conveniently prepared by laser pyrolysis and hydrogen-pretreatment and readily reactivated with hydrogen at elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.