| abstract |
The present invention provides an aldehyde decomposition catalyst, an exhaust gas treatment device and an exhaust gas treatment method using the aldehyde decomposition catalyst, the aldehyde decomposition catalyst is improved in terms of cost, and further, sufficient aldehyde decomposition performance can be obtained even with a small amount of catalyst, Convenience improves. The aldehyde decomposition catalyst of the present invention is obtained by supporting Cu on a zeolite of NH 4 cation of the structural type of CHA or MOR. |