초록 ▼

Gas turbine compressors are cleaned during power generation (on line) by periodically injecting or spraying into the air inlet, a cleaning composition comprising 4-95 percent by weight of a glycol ether such as ethylene glycol butyl ether, or a mixture of glycol ethers such as propylene glycol methy

Gas turbine compressors are cleaned during power generation (on line) by periodically injecting or spraying into the air inlet, a cleaning composition comprising 4-95 percent by weight of a glycol ether such as ethylene glycol butyl ether, or a mixture of glycol ethers such as propylene glycol methyl ether and dipropylene glycol methyl ether, 0.1 to 14 percent by weight of a nonionic surfactant, 0.01 to 6 percent by weight of a cationic surfactant and 0 to 95 percent by weight of water.

대표청구항 ▼

A composition suitable for cleaning a gas turbine compressor on-line, consisting essentially of a mixture of: (A) 4 to 95 percent by weight one or more glycol ethers having the formula RO-[CH(X)-CH(X′)-0]n-H where R is an alkyl group of 1 to 4 carbons, X and X′are each independently hydrogen, methyl

A composition suitable for cleaning a gas turbine compressor on-line, consisting essentially of a mixture of: (A) 4 to 95 percent by weight one or more glycol ethers having the formula RO-[CH(X)-CH(X′)-0]n-H where R is an alkyl group of 1 to 4 carbons, X and X′are each independently hydrogen, methyl, or ethyl, with the provisos that X′is hydrogen when X is methyl or ethyl and that X is hydrogen when X′is methyl or ethyl and n is 1, 2, 3, 4, or 5: (B) 0.1 to 14 percent by weight ethylene oxide adducts of fatty acids, alkyl phenols or aliphatic alcohols each having an aliphatic group of 6 to 20 carbons and each having 4 to 15 ethylene oxide units: (C) 0.01 to 6 percent by weight a cationic surfactant; and (D) 0 to 95 percent by weight purified water. A method of cleaning a gas turbine compressor and/or the blades thereof during power generation without significant loss of power, which comprises contacting the surfaces to be cleaned with a cleaning composition consisting essentially of a mixture of: (A) 4 to 95 percent by weight one or more glycol ethers having the formula RO-[CH(X)-CH(X′)-O]n-H where R is an alkyl group of 1 to 4 carbons, X and X′are each independently hydrogen, methyl, or ethyl, with the provisos that X′is hydrogen when X is methyl or ethyl and that X is hydrogen when X′is methyl or ethyl and n is 1, 2, 3, 4, or 5; (B) 0.1 to 14 percent by weight ethylene oxide adducts of fatty acids, alkyl phenols or aliphatic alcohols each having an aliphatic group of 6 to 20 carbons and each having 4 to 15 ethylene oxide units; (C) 0.01 to 6 percent by weight a cationic surfactant; and (D) 0 to 95 percent by weight purified water, in an amount effective to reduce deposits on the compressor or the blades thereof.