METHOD FOR INHIBITING DEGRADATION OF DENITRATION DEVICE

WIPO Patent Application WO/2017/022520

A1

Provided is a method for inhibiting the degradation of a denitration device, said method making it possible to inhibit the degradation of a denitration catalyst by preventing the surface of the denitration catalyst from becoming coated with sediment having an extremely small particle size. The method is for inhibiting the degradation of a denitration device 60 in a coal-fired power plant 1 provided with: a coal pulverizer 30 that pulverizes coal in order to produce pulverized coal; a combustion boiler 40 that burns the pulverized coal produced in the coal pulverizer 30; and a denitration device 60 that is arranged downstream from the combustion boiler 40 and that removes nitrogen oxides included in exhaust gas generated when the pulverized coal is burned in the combustion boiler 40. In the method, the agglomeration of extremely fine coal ash is promoted by adding a coal ash agglomeration promoter to the combustion boiler 40, and the extremely fine coal ash is thereby prevented from adhering to the denitration catalyst.

WO/2014/112759

COMBUSTION METHOD AND COMBUSTION SYSTEM HAVING AUTOMATIC WATER-COOLED OXYGEN BURNER AND POWDER MELTING UNIT

YOSHIKAWA TOSHIKAZU (JP)
HIKINO KENJI (JP)
MORITA KEIICHIRO (JP)

PCT/JP2016/071551

February 09, 2017

July 22, 2016

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CHUGOKU ELECTRIC POWER (JP)

F23L7/00; F23C99/00; F23J7/00; F23J15/00

JP2007333346A	2007-12-27
JPH04338217A	1992-11-25
JPS61227846A	1986-10-09
JPS55144095A	1980-11-10
JP2015081703A	2015-04-27
JPH01310723A	1989-12-14
JPS6348392A	1988-03-01
JPS51109279A	1976-09-28

SHOBAYASHI, Masayuki et al. (JP)

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