Partial oxidation process

Details Partial oxidation process Partial oxidation process

C - Chemistry, Metallurgy

10

J

48/26, 48/4

C10J 3/46 (2006.01) C01B 3/32 (2006.01)

Patent

CA 1172044

D# 76,187-C3-FB PARTIAL OXIDATION PROCESS 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 concentic coaxial outer conduit having a downstream exit nozzle, and providing a coaxial annular passage means therebetween. In other embodiments a two- section burner having a high turndown feature is employed that comprises a central conduit; a central bunch of tubes positioned in said central conduit; an outer conduit coaxial with said central conduit and forming an annular passage therewith; and an annular bunch of tubes positioned in said annular passage. 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 or through either one or both sections of a two-section burner and adjusting the flow rates of the reactant stream of free-oxygen containing gas with or without mixture with a temperature moderator and if necessary to introduce supplemental H2O into the reaction zone to maintain the temperature and weight ratio H2O/fuel in the reaction zone at design conditions for the partial oxidation reaction without stopping production of the product gas.

403754

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