Mitsubishi Jukogyo Kabushiki Kaisha

Masanori Demoto

Norihisa Kobayashi

Atsushi Morii

Osamu Naito

Kouzo Iida

Satoru Serizawa

Toshiyuki Onishi

A method for the denitration of exhaust gas from a gas turbine or an internal combustion engine which comprises (a) reducing a part of the NO.sub.2 constituting NO.sub.x contained in the exhaust gas to NO by means of a reduction catalyst bed for reducing NO.sub.2 to NO, the reduction catalyst bed being installed in flow communication with the exhaust gas outlet of the gas turbine or internal combustion engine, and (b) injecting NH.sub.3 into the exhaust gas within an exhaust heat recovery unit and then decomposing and removing NO.sub.x contained in the exhaust gas and now composed chiefly of NO, by means a denitration catalyst bed installed within the exhaust heat recovery unit to effect the catalytic reduction of NO.sub.x with NH.sub.3.

Growing community of inventors

Nagasaki, Japan

Masanori Demoto