Removal of laughing gas in nitric acid production

Details Removal of laughing gas in nitric acid production Removal of laughing gas in nitric acid production

2011-03-15

2011-03-15

Brunsman, David M (Department: 1732)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

C423S235000, C422S168000, C422S173000, C422S177000, C502S064000, C502S066000, C502S071000, C502S074000, C502S077000

Reexamination Certificate

active

07906091

ABSTRACT:
A method and device for removal of N2O in nitric acid production are disclosed. The device is arranged after a heat exchanger, post ammonia burning, before the absorption tower and contains a catalyst, which essentially comprises one or several iron loaded zeolites.

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Thiemann et al, “Nitric ACid, and Nitrogen Oxides”, pp. 1-49 (2005) (Ullmann's).

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