Gasification of carbonaceous material in a reactor having a gasi

Details Gasification of carbonaceous material in a reactor having a gasi Gasification of carbonaceous material in a reactor having a gasi

1994-04-28

1996-01-23

Lacey, David L.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

162 29, 162 301, 110238, 48 62R, 48107, 48111, 48197R, 48212, D21C 1112

Patent

active

054862698

ABSTRACT:
A method and reactor for thermally decomposing a carbonaceous raw material (6) to recover gas and, if applicable, solid or liquid chemicals, the raw material being fed into a chamber (2) for gasification under under-stoichiometric conditions, the gasification is carried out in a gasification zone (15) at a pressure from atmospheric pressure up to about 150 bar and at a temperature within the range 500.degree.-1600.degree. C. According to the invention a part of the thermal energy required to maintain the endothermic reactions in the gasification zone (15) is produced by combustion of a fuel (8) in a combustion zone (16) located close to and in gaseous contact with the gasification zone, the raw material and fuel being supplied through different nozzle channels (12 and 13, respectively). An oxygen-containing gas (17) is supplied in an amount sufficient to oxidize substantially all the fuel.

REFERENCES:
patent: 4094625 (1978-06-01), Wang et al.
patent: 4692209 (1987-09-01), Santen et al.
patent: 4872950 (1989-10-01), Andersson et al.

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