| 摘要 |
PROBLEM TO BE SOLVED: To effectively eliminate an HC component contained in exhaust gas while power consumption of a battery is suppressed. SOLUTION: An HC adsorbent 3 for adsorbing the HC component is arranged in the exhaust gas system consisting of an exhaust gas pipe 2 and also an electrically heated catalyst 4 is arranged on the down stream thereof. The HC adsorbent 3 is composed of a raw material such as a β type zeolite having such characteristic that desorbing temp. of the HC component having better ignitability, consisting of 5-8C paraffins, etc., is lower than the desorbing temp. of the HC component having worse ignitability, consisting of olefins and aromatics, etc. |
