| 摘要 |
<p>PURPOSE:To efficiently remove NOx contained in the air and various exhaust gases, especially both NO and NO2. CONSTITUTION:An adsorption bed packed with activated carbon is disposed on the downstream side of an adsorption bed packed with a multiple oxide contg. hydrogen and manganese whose average valence is >3.5 and having a spinel type crystal structure to obtain the objective filter for purifying gas. The adsorption beds may be packed with a mixture of the multiple oxide with activated carbon.</p> |
