摘要
利用汽油燃烧器老化系统,采用低温机油中毒老化试验循环考察了汽油机油中的磷的质量分数、硫酸盐灰分和二烷基二硫代磷酸锌(ZDDP)类型对汽油车三元催化转化器中毒老化的影响.结果表明:汽油机油中的磷可引起三元催化器中毒,导致三元催化器对汽油车排放污染物(CO、THC和NOx)的起燃温度升高、转化效率降低;硫酸盐灰分可以延缓三元催化器的磷中毒;相同磷的质量分数条件下,仲烷基ZDDP(T205)相比伯烷基ZDDP(T202)对三元催化器的中毒影响更大.
Using the fuel and oil catalyst aging system （FOCAS） gasoline burner aging system and low temperature oil poisoning test cycle, the influence of phosphorus, sulfate ash, ZDDP （T202 and T205） of oil on poisoning and aging of three-way catalyst were studied. Results showed that phosphorus could make the catalytic converter poisoned, leading to the rising of light-off temperature of catalytic converter and lowering of converting efficiency. Sulfate ash delays the poisoning from phosphorus on catalytic converter. Poisoning of T205 for catalytic converter is higher than T202 under same content of phosphorus.
出处
《内燃机学报》
EI
CAS
CSCD
北大核心
2013年第2期159-164,共6页
Transactions of Csice
关键词
汽油机油
催化器中毒
起燃温度
gasoline engine oil
poisoning of catalytic converter
light-offtemperature
