Process for gasifying carbonaceous material

Details Process for gasifying carbonaceous material Process for gasifying carbonaceous material

1986-07-17

1988-04-19

Kratz, Peter

Gas: heating and illuminating

Processes

Fuel mixtures

45 92, 45210, C10J 348

Patent

active

047386886

ABSTRACT:
A process including an apparatus for use therein for gasifying a carbonaceous material by means of blowing said carbonaceous material onto a high temperature molten iron bath through a top-blowing lance of the non-immersion type is disclosed. The apparatus comprises a furnace body containing the high temperature molten iron bath, a top-blowing lance of the non-immersion type which is a multi-nozzle lance comprising a central nozzle for blowing the carbonaceous material in a powdery form, a plurality of inner nozzles for blowing a gasifying agent, the inner nozzles for blowing the gasifying agent being positioned surrounding said central nozzle, and another plurality of outer nozzles for blowing an oxidizing gas for secondary combustion of part of the product gas to maintain the molten iron bath temperature at a level high enough to continue the gasification, said outer nozzles being positioned surrounding said plurality of inner nozzles, the axis of each of said outer nozzles being inclined towards the outer periphery at an angle of 20.degree.-60.degree. with respect to the axis of said central nozzle, means for discharging the slag during gasification, and means for recovering the product gas.

REFERENCES:
patent: 3911716 (1968-11-01), Stephan et al.
patent: 4388084 (1983-06-01), Okane et al.
patent: 4432539 (1984-02-01), Zanetta et al.
Berkowitz, Coal Gasification, A "State-of-the Art" Review, Apr. 1973, p. 32.

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