Mitsubishi Heavy Industries Limited

Masashi Hishida

Toshimitsu Ichinose

Tadashi Gengo

Yuichi Fujioka

Tomomitsu Yokoyama

Kouichi Sakamoto

Akiyasu Okamoto

Kikuo Tokunaga

Katsuyuki Ueda

Toshiaki Ohkubo

Yoshiyuki Wakabayashi

A powdery fuel combustion apparatus disposed on furnace side plane ( ) of vertical square body type furnace in which a vertical plane passing through a fuel jetting directional axis ( ) does not cross the furnace side plane orthogonally, and thus the workability of furnace wall tubes and burner panel, and the maintainability of burner nozzle are improved. The apparatus includes a burner nozzle ( ) that is formed such that the nozzle has right and left non-symmetrical shapes, with respect to a vertical plane passing through axis ( ). Also, the nozzle has a tip portion opening lying in an opening plane ( ) which coincides or is parallel to the furnace side plane ( ).

Powdery fuel combustion apparatus

This invention relates to a method for decreasing sulfuric acid and sulfuric anhydride present in combustion exhaust gas which comprises adding an SO,-decreasing agent (hydrogen gas) to combustion exhaust gas and thereby reducing sulfuric acid (H,SO,) and sulfuric anhydride (SO,) present in the combustion exhaust gas, as well as a combustion exhaust gas flow system therefor. Thus, this invention provides a method for decreasing sulfuric acid and sulfuric anhydride present in combustion gas which can prevent the occurrence of troubles (e.g., low-temperature corrosion and ash deposition) arising from H,SO,and S,contained in combustion gas.

Method for decreasing sulfuric acid and sulfuric anhydride present in combustion exhaust gas

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Tokyo, Japan

Masashi Hishida