ガスタービン用複合型触媒燃焼器の開発(熱工学,内燃機関,動力など)

概要

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A catalytically assisted combustor for a gas turbine was designed to achieve low NO_x emission. This combustor is composed of a burner and a ceramic liner. The burner consists of an annular preburner, 6 catalytic combustor segments and 6 premixing nozzles, which are arranged in parallel and alternately. In this combustor system, catalytic combustion temperature is controlled under 1 000℃, premixed gas is injected from the premixing nozzles to the catalytic combustion gas and lean premixed combustion over 1 300℃ is carried out in the ceramic liner. This system was designed to avoid catalyst deactivation at high temperature and thermal shock fracture of the ceramic honeycomb monolith of the catalyst. The combustor of 1 MW class was tested under high pressure conditions using LNG fuel. As a result, NO_x emission was approximately 4 ppm (at 16% O_2) at adiabatic combustion temperature of 1 350℃ and combustor inlet pressure of 1.33 MPa.
社団法人日本機械学会の論文
2002-01-25