Suspensions of inorganic cleaning agents
AssigneeGeneral Electric Company
InventorMichel Moliere
Life of this patent
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Abstract
Methods for on-line cleaning hot parts of a gas turbine during its operation are provided. A cleaning agent composition is injected into a hot gas path of the gas turbine, and includes a liquid carrier and a descaling material suspending in the liquid carrier. The descaling material includes at least one oxide, in an anhydrous or a hydrated form, that is derived from calcium, magnesium, titanium, iron, aluminium, silicon in the form of silicates having non-fibrous structures, or phosphorus in the form of alkaline-earth phosphates. Cleaning agents are also provided for use in a gas turbine.
Claims20
A method for on-line cleaning hot parts of a gas turbine during operation, the method comprising:
- injecting a cleaning agent composition into a hot gas path of the gas turbine, wherein the cleaning agent composition comprises:
- a liquid carrier and a descaling material suspending in the liquid carrier,
- wherein the descaling material comprises at least one oxide, in an anhydrous or a hydrated form, that is derived from calcium, magnesium, titanium, iron, aluminium, silicon in the form of silicates having non-fibrous structures, or phosphorus in the form of alkaline-earth phosphates.
A cleaning agent comprising:
- a liquid carrier;
- and
- a descaling material suspending in the liquid carrier, wherein the descaling material comprises at least one oxide, in an anhydrous or a hydrated form, that is derived from calcium, magnesium, titanium, iron, aluminium, silicon in the form of silicates having non-fibrous structures, or phosphorus in the form of alkaline-earth phosphates, and wherein the descaling material has a sub-millimeter particle size that is about 5 μm to about 315 μm.
Dependencies are inferred from the claim text.