| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus for cleaning exhaust capable of effectively removing NO<SB>x</SB>over a wide temperature range of from a low temperature zone to a high temperature zone. <P>SOLUTION: The apparatus 1 for cleaning exhaust including a gas flow path 2 for exhaust comprising H<SB>2</SB>to flow therethrough, includes a converter A wherein a catalyst including a composite oxide of a perovskite type comprising Pd represented by formula: ABO<SB>3</SB>is stored, and/or a converter B wherein a catalyst including a composite oxide of a perovskite type comprising Pt represented by formula: ABO<SB>3</SB>is stored, and a converter C wherein a catalyst including alumina or a zeolite supporting Pt is stored, which converters A and/or B are/is disposed on the upstream side of the gas flow path 2 relative to the converter C. <P>COPYRIGHT: (C)2011,JPO&INPIT |
