Preparing synthesis gas using hydrotalcite-derived nickel...

Details Preparing synthesis gas using hydrotalcite-derived nickel... Preparing synthesis gas using hydrotalcite-derived nickel...

2005-10-11

2005-10-11

Ridley, Basia (Department: 1764)

Gas: heating and illuminating

Processes

Manufacture from methane

C048S127700, C048S198500, C502S080000, C502S084000, C502S337000, C423S654000, C422S198000, C422S211000

Reexamination Certificate

active

06953488

ABSTRACT:
There is provided a process for preparation of synthesis gas from feedstocks containing methane and/or higher hydrocarbons having from about 2 to about 12 carbon atoms by an initial catalytic treatment of feedstock to provide a methane-containing gaseous mixture substantially free of compounds having 2 or more carbon atoms, and reforming the gaseous mixture at elevated temperatures using nickel-containing catalytic materials that are unusually active under mild conditions of conversion and resistant to deactivation. The process consists fundamentally in converting the higher hydrocarbon compounds to form the methane-containing gaseous mixture in an initial conversion zone containing a catalyst while controlling temperatures within the initial conversion zone to temperatures in a range downward from about 500° C. to about 300° C., and reforming the methane-containing gaseous mixture in a subsequent zone to form synthesis gas.

REFERENCES:
patent: 3615299 (1971-10-01), Fischer et al.
patent: 3619144 (1971-11-01), Bawa et al.
patent: 3771261 (1973-11-01), Mandelik et al.
patent: 3988425 (1976-10-01), Jockel et al.
patent: 5399537 (1995-03-01), Bhattacharyya et al.

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