| 摘要 |
An object of the present invention is to improve hydrocarbon adsorbing property when zeolite is used as an adsorbent for hydrocarbons. The present invention provides an adsorbent for hydrocarbons characterized by comprising A Type of beta-zeolite having a SiO<SUB>2</SUB>/Al<SUB>2</SUB>O<SUB>3 </SUB>ratio (molar ratio) in a range of 10 or more and less than 200 and B Type of beta-zeolite having a SiO<SUB>2</SUB>/Al<SUB>2</SUB>O<SUB>3 </SUB>ratio (molar ratio) in a range from 200 to 1,000, and a catalyst for exhaust gas purification containing said adsorbent for hydrocarbons.
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