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首页> 外文会议>International gas research conference >STAGED BURNER WITH A SUBSTITUTED HEXAALUMINATE CATALYST FOR THE CONFINED HIGH TEMPERATURE CATALYTIC COMBUSTION OF NATURAL GAS
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STAGED BURNER WITH A SUBSTITUTED HEXAALUMINATE CATALYST FOR THE CONFINED HIGH TEMPERATURE CATALYTIC COMBUSTION OF NATURAL GAS

机译：具有取代六铝酸盐催化剂的分期燃烧器，用于天然气的狭窄的高温催化燃烧

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Catalytic combustion is an effective way to stabilise lean combustion and to achieve low NO_x emissions. However, the technology is essentially limited to low power density applications (＜＜ 300 kW/m~2) because of the insufficient durability of the precious metal catalysts, platinum and palladium, above 900°C. Hexaaluminate, perovskite or spinel oxides which have good thermal resistance and durability are candidate high temperature combustion catalysts, but their activity is insufficient below 1,000°C. Burner design can compensate for that gap in suitable catalytic activities. A staged catalytic burner with a durable high temperature hexaaluminate catalyst is described that permits the flameless catalytic combustion of natural gas to be initiated and sustained, raising hopes for the wider commercial development of catalytic combustion.
机译：催化燃烧是稳定稀薄燃烧的有效方法，并实现低NO_X排放。 然而，由于贵金属催化剂，铂和钯的耐久性不足，高于900℃，该技术基本上限于低功率密度应用（ 300kW / m〜2）。 具有良好的耐热性和耐久性的六氢盐，钙钛矿或尖晶石氧化物是候选高温燃烧催化剂，但它们的活性低于1,000℃。 燃烧器设计可以在合适的催化活动中弥补该间隙。 描述了具有耐用高温六氧铝酸铝酸催化剂的分段催化燃烧器，其允许启动和持续的天然气的无焰催化燃烧，提高催化燃烧的更广泛的商业发展希望。

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