Combustion process for reducing nitrogen oxides

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United States of America Patent

PATENT NO 4403941
SERIAL NO

06175823

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Abstract

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A combustion process for reducing nitrogen oxides in combustors is proposed wherein combustion takes place successively forming an incomplete combustion zone, a reducing combustion zone, and a complete combustion zone, respectively corresponding to primary burners, secondary burners and air ports or after-burners, successively arranged in the direction of gas stream in a furnace. According to the present invention, it is possible to reduce nitrogen oxides by improving a manner of combustion without providing any denitrating apparatuses for exhaust gas.

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Patent OwnerAddress
BABCOCK-HITACHI LTD A CORP OF JAPAN6-2 2-CHOME OHTEMACHI CHIYODA-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akiyama, Iwao Kure, JP 4 111
Arikawa, Yoshijiro Kure, JP 11 180
Baba, Akira Kure, JP 77 911
Morita, Shigeki Kure, JP 37 871
Okiura, Kunio Kure, JP 5 165
Terada, Hiroshi Kure, JP 88 908

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