催化燃烧炉近零污染排放和其技术利用的研究

催化燃烧是一个异相氧化过程,它的优点在于燃烧的排放接近零污染.贫甲烷/空气混和物在镀贵金属催化剂蜂窝状支撑物上的燃烧使多相燃烧的温度足够支持单相燃烧,这使近零污染排放和高稳定共存.燃气与空气之间的比例关系对系统的辐射效率有相当大的影响,通常燃料选择天然气,随着天然气与空气比的增大燃烧系统的辐射效率降低.常规燃烧只存在于理想的燃料空气比中,叫作可燃性界限.催化燃烧无如此严格,且在设计燃烧时几乎无限制.并对其利用进行了分析.

Research on the Near-zero Pollutant Emissions and the Use of this Technology in a Catalytic Combustion Burner

Catalytic combustion is heterogeneous oxidation while preserving its near-zero emissions. The combustion of ultra-lean methane/air mixtures in precious metal based catalytic honeycomb monolith burners remained heterogeneous at temperatures high enough to have supported homogeneous combustion. This was concurrent with near zero pollutants emission and high stability. The percentage of fuel in natural gas and air mixtures has large influence on the radiation efficiency. Very often, the fuel in such devices is natural gas. The conclusion was that the radiation efficiency of catalytic combustion system decreases while the percentage of natural gas increases. Conventional combustion can only exist within well-defined fuel to air ratios, known as the flammability limits. Catalytic combustion is not so constrained and can offer fewer limitations on reactor design. The use of this technology has been analyzed.