Method for removing nitrogen oxides from a gas stream

Details Method for removing nitrogen oxides from a gas stream Method for removing nitrogen oxides from a gas stream

C - Chemistry, Metallurgy

01

C

23/353

C01C 1/18 (2006.01) B01D 53/56 (2006.01)

Patent

CA 1119780

METHOD FOR REMOVING NITROGEN OXIDES FROM A GAS STREAM ABSTRACT A gas stream containing nitrogen oxides, such as the tail gas from a nitric acid plant, is treated to reduce the nitrogen oxides content thereof. The method results in the production of a product gas stream and an aqueous solution of ammonium nitrate. In a liquid- gas contact apparatus, the gas stream is first reacted, under steady state conditions, in counter-current flow, with an aqueous solution of ammonium nitrate at a pH of about 0.01 to about 0.5. The gas stream is then further reacted in counter-current flow with an aqueous solution of ammonium nitrate at a pH of about 8.1 to about 8.5; and thereafter in counter-current flow with water, pref- erably slightly acidified to a pH of 6.0 to 6.5.

346467

Affiliated with

Also associated with

Rating

Method for removing nitrogen oxides from a gas stream does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for removing nitrogen oxides from a gas stream, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for removing nitrogen oxides from a gas stream will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-771208