Aqueous compositions for cleaning gas turbine compressor blades
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C11D-001/72
C11D-003/16
C23G-001/26
C23G-001/00
F01D-025/00
B08B-003/04
출원번호
US-0654041
(2003-09-03)
발명자
/ 주소
Yan,Laibin
Fillipo,Bruce K.
출원인 / 주소
General Electric Company
대리인 / 주소
Duane Morris LLP
인용정보
피인용 횟수 :
14인용 특허 :
11
초록
The present invention is directed to a gas turbine cleaner. The composition of the present invention includes a glycol alkyl ether compound, an alkoxylated surfactant with an alkyl chain length of from about 3 to 18 carbons and a metal corrosion inhibitor component.
대표청구항▼
What is claimed is: 1. A gas turbine cleaning composition comprising a mixture of (a) a glycol alkyl ether compound, (b) an alkoxylated surfactant with an alkyl chain length of from about 3 to 18 carbons and (c) a metal corrosion inhibitor component, wherein the mixture has an alkaline metal conten
What is claimed is: 1. A gas turbine cleaning composition comprising a mixture of (a) a glycol alkyl ether compound, (b) an alkoxylated surfactant with an alkyl chain length of from about 3 to 18 carbons and (c) a metal corrosion inhibitor component, wherein the mixture has an alkaline metal content less than about 25 ppm, said metal corrosion inhibitor component selected from the group consisting of N-methyloleamidoacetic acid, 1,8-octanedicarboxylic acid, (((2-hydroxyethyl) imino) bis-(methylene)) bis-phosphonic acid N-oxide, ((tetrahydro-2-hydroxy-4H-1,4,2-oxaphosphorin-4-yl)methyl) phosphonic acid N-oxide, and mixtures thereof with triethanolamine. 2. The composition as recited in claim 1, wherein said glycol alkyl ether compound is selected from the group consisting of propylene glycol methyl ether, dipropylene glycol methyl ether, tripropylene glycol methyl ether, propylene glycol n-propyl ether, dipropylene glycol n-propyl ether, tripropylene glycol n-propyl ether, propylene glycol n-butyl ether, dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether, dipropylene glycol dimethyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol n-butyl ether, diethylene glycol hexyl ether, ethylene glycol propyl ether, ethylene glycol n-butyl ether, and ethylene glycol hexyl ether, and mixtures thereof. 3. The composition as recited in claim 1, wherein said alkoxylated surfactant is selected from the group consisting of nonionic ethoxylate primary or secondary alcohols, alkoxylated primary alcohols with propylene oxide, and block copolymers of propylene oxide and ethylene oxide, and mixtures thereof. 4. The composition as recited in claim 1, wherein said alkoxylated surfactant has an alkyl chain length of from about 6 to 15 carbons. 5. The composition as recited in claim 1, wherein said alkoxylated surfactant is nonionic. 6. The composition as recited in claim 1, wherein the pH of the mixture is from about 6.5-9. 7. The composition as recited in claim 6, wherein the pH of the mixture is from about 6.5-7.5. 8. The composition as recited in claim 1, wherein the mixture has a residue content less than about 0.01%. 9. A method of cleaning a gas turbine compressor and the blades thereof during power generation without significant loss of power, which comprises contacting the surfaces to be cleaned with a cleaning composition comprising a mixture of (a) a glycol alkyl ether compound, (b) an alkoxylated surfactant with an alkyl chain length of from about 3 to 18 carbons and (c) a metal corrosion inhibitor component, wherein the mixture has an alkaline metal content less than about 25 ppm, said metal corrosion inhibitor component selected from the group consisting of N-methyloleamidoacetic acid, 1.8-octanedicarboxylic acid, (((2-hydroxyethyl) imino) bis-(methylene)) bis-phosphonic acid N-oxide, ((tetrahydro-2-hydroxy-4H-1,4,2-oxaphosphorin-4-yl)methyl) phosphonic acid N-oxide, and mixtures thereof with triethanolamine. 10. The method as recited in claim 9, wherein said glycol alkyl ether compound is selected from the group consisting of propylene glycol methyl ether, dipropylene glycol methyl ether, tripropylene glycol methyl ether, propylene glycol n-propyl ether, dipropylene glycol n-propyl ether, tripropylene glycol n-propyl ether, propylene glycol n-butyl ether, dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether, dipropylene glycol dimethyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol n-butyl ether, diethylene glycol hexyl ether, ethylene glycol propyl ether, ethylene glycol n-butyl ether, and ethylene glycol hexyl ether, and mixtures thereof. 11. The method as recited in claim 9, wherein said alkoxylated surfactant is selected from the group consisting of nonionic ethoxylate primary or secondary alcohols, alkoxylated primary alcohols with propylene oxide, and block copolymers of propylene oxide and ethylene oxide, and mixtures thereof. 12. The method as recited in claim 9, wherein said alkoxylated surfactant has an alkyl chain length of from about 6 to 15 carbons. 13. The method as recited in claim 9, wherein said alkoxylated surfactant is nonionic. 14. The method as recited in claim 9, wherein the pH of the mixture is from about 6.5-9. 15. The method as recited in claim 14, wherein the pH of the mixture is from about6.5-7.5. 16. The method as recited in claim 9, wherein the mixture has a residue content less than about 0.01%.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (11)
Amiran Mohsen C., Chemical cleaning solution for gas turbine blades.
Woodson Jeffrey B. (Lake Jackson TX) Cooper Lance A. (Lake Jackson TX) White Helen M. (Lake Jackson TX) Fischer Gordon C. (Angleton TX), Cleaning gas turbine compressors.
Kawakami, Tetsuji; Koshiro, Ikumasa; Haruna, Rumi; Uemura, Yoshitaka, Method for regenerating gas turbine blade and gas turbine blade regenerating apparatus.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.