Method of reducing the N 2 O content of gases and selected...

Details Method of reducing the N 2 O content of gases and selected... Method of reducing the N 2 O content of gases and selected...

2007-08-21

2007-08-21

Sample, David (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And group viii containing

C502S077000, C502S086000, C423S239100, C423S239200

Reexamination Certificate

active

10469439

ABSTRACT:
A method of reducing the N2O content in gases is described. A selected zeolite catalyst is used in the method. This catalyst is present in the H form and/or contains exchanged iron and is characterized by the presence of nonlattice aluminum in addition to the lattice aluminum in a molar ratio of from 1:2 to 20:1.The method can be used in nitric acid production for reducing the N2O content of process gases or offgases.

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