Combustion device for catalytic combustion type gas turbine

Abstract

Abstract PURPOSE:To provide a high reliability and further low NOx by a method wherein a pre-mixing segment having a premixing device therein and a catalyst segment having catalyst filled therein and storing the premixing device at an upstream side thereof are arranged in parallel and assembled to each other and a large-sized combustion device is formed. CONSTITUTION:A pre-mixing segment 4 having a premixing device 7 therein and a catalyst segment 3 having a small-sized catalyst 5 filled therein and storing a premixing device 6 at an upstream side thereof are arranged in parallel to each other and a large sized burner 1 is constituted by an assembly of these devices. Gas fuel of low calorie such as LNG and LPG and liquid fuel such as Diesel oil or the like are fed into the catalyst segment 3 by an amount corresponding to a temperature lower than a catalyst temperature, i.e. an adiabatic flame temperature of about 800 to 1,300 deg.C so as to perform a catalytic combustion. In turn, the remaining fuel is fed into the premixing segment 4 to generate the premixed gas and then the premixed gas is injected around a hot temperature gas injected from the catalyst segment 3. Then, the hot temperature gas serves as a pilot flame, so that fuel is premixed and ignited to get a combustion gas having an outlet temperature of the combustion device, 1,300 deg.C, for example.

Inventors

• 👤 Toshio Abe
• 👤 俊夫 阿部
• 👤 Yasushi Ozawa
• 👤 靖 小沢
• 👤 Toru Yamanaka
• 👤 亨 山中

Bibliographic Details