| 摘要 |
PREVENTION OF FORMATION OF NICKEL SUBSULFIDE IN PARTIAL OXIDATION OF HEAVY LIQUID AND/OR SOLID FUELS (D#78.866 -F) A sulfur-containing heavy liquid hydrocarbonaceous fuel and/or solid carbonaceous fuel with nickel, vanadium, and silicon containing ashes is mixed with a copper and/or cobalt-containing material to provide a weight ratio of copper and/or cobalt to nickel in the range of about 0.2 to 10; and the weight ratio of copper and/or cobalt to silicon in said mixture is in the range of about 0.0001 to 0.04. The mixture is reacted by partial oxidation in a downflowing free-flow unobstructed vertical reaction zone with refractory lined walls at a temperature in the range of about 1800.degree.F to 2900.degree.F, an equilibrium oxygen concentration in the gas phase in the reaction zone with a partial pressure in the range of about 1.7 x 10-15 to 2.3 x 10-8 atmospheres: and an equilibrium sulfur concentration in the gas phase in the reaction zone with a partial pressure in the range of about 2.53 x 10-7 to 8.1 x 10-2 atmospheres. A raw effluent gas stream is produced comprising H2+CO and containing entrained slag comprising the following phases: (i) Cu-Ni or Co-Ni alloy, (ii) copper silicate and/or cobalt silicate, (iii) a spinel phase, and (iv) about 0 to 5 wt. % of a fluid oxysulfide phase. Substantially no toxic Ni3S2 is produced in the slag.
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