Aldehyde decomposition catalyst, exhaust gas treatment apparatus, and exhaust gas treatment method
AssigneeHitachi Zosen Corporation
InventorsTsugumi NISHI, Susumu HIKAZUDANI, Emi SHONO
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Abstract
One object is to provide an aldehyde decomposition catalyst, and an exhaust gas treatment apparatus and an exhaust gas treatment method using the aldehyde decomposition catalyst that achieve low cost and sufficient aldehyde decomposition performance with a small amount of the catalyst. An aldehyde decomposition catalyst of the present invention is made of a zeolite in a cation form NH4 having a structure selected from MFI and BEA and carrying at least one metal selected from the group consisting of Cu, Mn, Ce, Zn, Fe, and Zr.
Claims5
-3. (canceled)
A method for decomposing an aldehyde contained in a combustion exhaust gas, the method comprising a step of contacting the aldehyde with an aldehyde decomposition catalyst, wherein the aldehyde decomposition catalyst is made of a zeolite in a cation form NH4 having a structure selected from MFI and BEA and carrying at least one metal selected from the group consisting of Cu, Mn, Ce, Zn, Fe, and Zr.
A method for decomposing an aldehyde contained in a combustion exhaust gas, the method comprising a step of contacting the aldehyde with an aldehyde decomposition catalyst, wherein the aldehyde decomposition catalyst is made of a zeolite in a cation form NH4 having a structure selected from MFI and BEA and carrying at least one metal selected from the group consisting of Cu, Mn, Ce, Zn, Fe, and Zr, and excludes a noble metal.
Dependencies are inferred from the claim text.