COMBUSTION SYSTEM

WIPO Patent Application WO/2020/179077

A1

Provided is a combustion system using a catalyst with a more satisfactory denitration efficiency at low temperatures during a selective catalytic reduction reaction having ammonia as the reductant, compared to prior art techniques.　The combustion system is equipped with a combustion device for combusting a fuel, an exhaust route for flowing therethrough an exhaust gas generated by the fuel being combusted in the combustion device, a dust collection device disposed in the exhaust route and collecting the soot present in the exhaust gas, and a denitration device disposed in the exhaust route and eliminating nitrogen oxide from the exhaust gas by means of a denitration catalyst. The denitration device is disposed on the downstream side of the dust collection device in the exhaust route. The denitration catalyst has vanadium oxide as the main component. The denitration catalyst has a second metal oxide content of 1% to 40% by weight. In the denitration catalyst, the second metal is at least one metal element selected from the group consisting of Co, W, Mo, Nb, Ce, Sn, Ni, and Fe.

KIYONAGA EIJI (JP)
YOSHIDA KAZUHIRO (JP)
MORITA KEIICHIRO (JP)
MURAYAMA TORU (JP)
HARUTA MASATAKE (JP)
HATA SHINICHI (JP)
INOMATA YUSUKE (JP)

PCT/JP2019/009202

September 10, 2020

March 07, 2019

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CHUGOKU ELECTRIC POWER (JP)
UNIV TOKYO METROPOLITAN (JP)

F23J15/00

WO2017042895A1	2017-03-16
WO2010131636A1	2010-11-18

JPS6410202B2	1989-02-21
JP2000197822A	2000-07-18
JPH11342337A	1999-12-14
JPS5738939A	1982-03-03
JP2007167780A	2007-07-05

SHOBAYASHI Masayuki et al. (JP)

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