C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
48/29
C01B 3/32 (2006.01) B01J 23/755 (2006.01) C01B 3/36 (2006.01) C10J 3/46 (2006.01)
Patent
CA 1330621
PARTIAL OXIDATION PROCESS (D#78,736-F) ABSTRACT OF THE DISCLOSURE Synthesis gas is produced by the partial oxidation of a feedstock comprising a high silicon and sulfur- containing heavy liquid hydrocarbonaceous fuel and/or petroleum coke or tar sands having nickel and vanadium- containing ashes in admixture with a silicon and manganese- containing ash fusion temperature modifying agent in a vertical free-flow unobstructed reaction zone lined with a refractory which comprises in wt. %: silicon-containing material about 95 to 99.8, iron oxide about 0.1 to 1.0, Al2O3 about 0.1 to 1.0, CaO about 0 to 0.4, and others about o to 1.2. In the reaction zone separate portions of said silicon and manganese-containing additive (i) combine with a portion of said Fe, Ni, and S to generate a first liquid phase washing agent which washes a portion of the high melting vanadium and oxide phases from the reaction zone, (ii) combine with a portion of said Ni, Ca, Si, Al, Mg and Na and/or K to generate a liquid oxide-silicate phase that fluxes and washes substantially all of the remaining vanadium and other ash components, and (iii) combine with a portion of the molten ash from the fuel and a minor portion of the refractory lining said reaction zone to increase the amount of said liquid oxide silicate phase and thereby enhance the removal of the vanadium from said reaction zone. By this method molten slag having a reduced viscosity and containing the nickel and vanadium-containing impurities from the feedstock and refractory components are readily removed from the gas generator.
599909
Smart & Biggar
Texaco Development Corporation
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