| 摘要 |
An adsorbent for exhaust gas in accordance with the present invention is produced by mixing a base material with an additive, in which the base material containing Fe-ZSM-5 is obtained by Fe ion exchange of ZSM-5 having an Si/Al2O3 molar ratio of 28 (the number of moles of Si:the number of moles of Al2O3=28:1), and in which the additive contains at least one selected from Y-zeolite having an Si/Al2O3 molar ratio of 250, mordenite having an Si/Al2O3 molar ratio of 200, and beta-zeolite having an Si/Al2O3 molar ratio of 400. The adsorbent can adsorb both hydrocarbons and nitrogen oxides simultaneously effectively.
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