生物质熔融碳酸盐燃料电池排气催化燃烧实验研究

Experimental Study of Catalytic Combustion of Exhaust Gas From a Biomass Melted Carbonate Fuel Cell

在自行研制的催化燃烧实验平台上,研究使用4种不同催化剂的生物质熔融碳酸盐燃料电池排气的催化燃烧反应特性,结果表明:总体趋势上,催化燃烧的反应效率随着催化燃烧室入口温度的提升而提高;生物质气高温燃料电池排气中氢气的体积浓度对催化反应特性有很大影响,在氢气浓度低于3%的时候,催化燃烧反应效率随着氢气浓度的提高而明显增加;不同的排气组分浓度,不同的催化剂有不同的催化反应特性,因此要根据熔融碳酸盐燃料电池排放气体组成,选用不同的催化剂。

On a self-developed catalytic combustion test stand,studied were the catalytic combustion characteristics of the exhaust gas from a biomass melted carbonate fuel cell using four different catalysts.The research results show that as viewed from the overall tendency,the reaction efficiency of the catalytic combustion will increase with an increase of the catalytic combustor inlet temperature.The volumetric concentration of hydrogen in the exhaust gas from the biomass gas high temperature fuel cell has a very big influence on the catalytic reaction characteristics.When the hydrogen concentration is below 3%,the catalytic reaction efficiency will conspicuously increase with an increase of the hydrogen concentration.Different exhaust component concentrations and catalysts will have different catalytic reaction characteristics,thus different catalyst should be chosen,depending on the composition of the exhaust gas released from the melted carbonate fuel cell.