catalytic combustion device

Abstract

Abstract PURPOSE:To decrease the emission of nitrogen oxides and enhance the efficiency of burning, by stratifying upstream and downstream lattice-like fluid passages across each other to form a heat-conductible catalytic layer unit. CONSTITUTION:In a catalytic layer unit 20, upstream latticelike fluid passages 21 and downstream latticelike fluid passages 22 are stratified perpendicularly across each other. A mixture 8 consisting of burning air and fuel and previously heated by a preheating burner reacts on the surface of a catalyst while flowing through the passages 21, 22 of the catalytic layer unit 20, so that the mixture is changed into combustion gas 9 going out. Once the catalytic reaction is begun, even if the temperature of the mixture 8 flowing into the upstream passages 21 becomes lower than the catalytic ignition temperature, the reaction heat in the downstream passages 22 raises the temperature of the catalyst in the upstream passages 21 through a catalyst carrier so that the catalyst on the surfaces of the upstream passages is kept not lower than the ignition temperature.

Inventors

• 👤 Hiroshi Inoue
• 👤 洋 井上

Bibliographic Details