| 摘要 |
Nickel compounds are used for inhibiting vanadium corrosion of metallic materials of thermal equipment such as a gas turbine burning vanadium-containing fuels, where the mass ratio of nickel to vanadium contaminant is at least 1.74 Preferred Features: Combustion of a combustible liquid contaminated with vanadium includes the introduction of at least one nickel compound, where the mass ratio of nickel to vanadium is 1.9-2.5, most preferably 2.25, into the thermal equipment The thermal equipment is a gas turbine, preferably a gas turbine having a flame temperature above 1100 deg C, more preferably 1100-1300 deg C. Combustion may take place in the presence of sodium. The combustion process also includes lixiviation of nickel compound ash by a reducing organic acid, preferably oxalic acid. An Independent claim is given for the utilization of the nickel compounds for inhibiting vanadium corrosion of metallic materials of thermal equipment burning vanadium-containing fuels, where the nickel compound is liposoluble or water-soluble, in the form of an emulsion or microemulsion water-in-oil or oil in water, or in the form of an aqueous or organic suspension. Organic or inorganic nickel salts such as nickel nitrate or sulfate can be used. The process can be used for inhibiting vanadium corrosion of type I and type II metallic materials.
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