Partial oxidation process

Details Partial oxidation process Partial oxidation process

1981-06-10

1983-08-23

Kratz, Peter F.

Gas: heating and illuminating

Processes

Fuel mixtures

48206, 48215, 48DIG7, 48212, 252373, C10J 346

Patent

active

044001800

ABSTRACT:
A partial oxidation process and control system for continuously producing synthesis gas, fuel gas or reducing gas in which one process fuel is replaced by a different fuel without shutting down or depressurizing the gas generator. This multifuel process is not tied to one particular fuel and reacts slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbonaceous fuels. Suitable burners for introducing the feedstreams into the gas generator comprise a central conduit means radially spaced from a concentric coaxial outer conduit having a downstream exit nozzle, and providing a coaxial annular passage means therebetween. The central conduit means may be retracted upstream from the burner face a distance of about 0 to 12 and preferably 3 to 10 times the minimum diameter of the central exit orifice. A premix zone is preferably provided comprising one or more, say 2 to 5 coaxial chambers in series where substantial mixing of the reactant streams and optionally volatilization of the slurry medium takes place. A control system is provided for switching the type of reactant fuel stream flowing through either the central conduit means or the annular passage means of the burner and adjusting the flow rates of the reactant stream of free-oxygen containing gas.

REFERENCES:
patent: 3607156 (1971-09-01), Schlinger et al.
patent: 3758037 (1973-09-01), Marion et al.
patent: 3972690 (1976-08-01), Van Os
patent: 4111637 (1978-09-01), Hillman
patent: 4144997 (1979-03-01), Anderson
patent: 4277254 (1981-07-01), Hanson

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