作　　者： ; ; ;

机构地区： 广东交通集团检测中心广东花都510800

出　　处： 《环境科学与管理》 2006年第3期60-63,共4页

摘　　要： 采用催化技术对金属载体转化器进行再生的方法,通过对转化器结构尺寸的优化设计,用钙钛矿催化剂制成金属载体催化转化器,实验结果发现,能明显降低柴油机排气PM的起燃温度,约在220℃左右。催化转化器的背压能严格的控制在5kPa左右,低于其上限值20kPa,说明催化转化器耗能小,对柴油机的影响很小,催化转化器的使用时间长。 With a optimized design for structure and using perovskite-type oxides as catatyst, we found that the economy of the original vehicle not be changed basically and meeting the purifying demand stipulated in the emission standard according to the emission of the original vehicle.Perovskitetype oxides catalyst for diesel exhaust purifying were designed according on the exhaust characteristic and the performance influencing factors. Experimental investigation were carried on the diesel bench and chassis dynometor. The results indicate that the performance of the catalyst is good. It can meet the demand of national standard.

关 键 词： 柴油机排气 颗粒物 金属载体 催化转化器 过滤效率 背压损失

领　　域： [环境科学与工程]