SYSTEM FOR SUPPLYING FUEL TO GAS TURBINE COMBUSTOR AND METHOD FOR SUPPLYING FUEL TO GAS TURBINE COMBUSTOR

WIPO Patent Application WO/2012/023302

A1

The purposes of the invention are to reduce the consumption of high-calorie gases such as a coke oven gas (COG) during the running of a gas turbine, and prevent the gas turbine from being shut down due to clogging of a pilot line or a trouble with a compressor for compressing the high-calorie gas, thereby providing improved reliability for the gas turbine. At the time of starting the operation of the gas turbine (11), a combustor (17) is supplied with high-calorie fuel and low-calorie fuel through both a first fuel supply system (31) and a second fuel supply system (32), the first fuel supply system supplying the high-calorie fuel to a first nozzle constituting the combustor (17), the second fuel supply system supplying the low-calorie fuel to a second nozzle constituting the combustor (17). When the gas turbine (11) has reached the output at which the gas turbine (11) can be continuously operated only on the low-calorie fuel, supplying the high-calorie fuel to the combustor (17) is stopped so that only the low-calorie fuel is supplied to the combustor (17).

ETO YOSUKE (JP)
UGAI KEN (JP)
OKAMOTO YOSHIKIYO (JP)
HIGASHI RYO (JP)
HIRASAKI TAKEO (JP)

PCT/JP2011/055307

February 23, 2012

March 08, 2011

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MITSUBISHI HEAVY IND LTD (JP)
ETO YOSUKE (JP)
UGAI KEN (JP)
OKAMOTO YOSHIKIYO (JP)
HIGASHI RYO (JP)
HIRASAKI TAKEO (JP)

F02C9/40; F02C6/00; F02C7/22; F02C7/232; F02C7/26; F02C9/34; F23R3/00; F23R3/28; F23R3/34; F23R3/36

US6385960B1	2002-05-14
US20030056517A1	2003-03-27
JPH11210495A	1999-08-03
JP2009210200A	2009-09-17
JP2006161603A	2006-06-22
JP2006125255A	2006-05-18
JPH07102998A	1995-04-18

See also references of EP 2607669A4

FUJITA, Takaharu et al. (JP)
Takaharu Fujita (JP)

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