Ammonia formation and release in the kraft recovery cycle: An overview

A4 Conference proceedings

Internal Authors/Editors

Publication Details

List of Authors: Kymäläinen M, Forssen M, DeMartini N, Hupa M
Editors: NN
Publication year: 2001
Book title: International Chemical Recovery Conference : changing recovery technology to meet the challenges of the pulp and paper industry
Start page: 247
End page: 250
ISBN: 1-896742-69-6


A review with 11 refs. is presented. A significant amt. of N -​- the amt. corresponding to the amt. of N in the NOx emission from the recovery boiler -​- converts to the form of NH3 during green and white liquor processing. The NH3-​forming compd. is cyanate (OCN) which originates in the smelt from the recovery boiler. There are several release points for this NH3, but in all, this NH3 is removed from the recovery process at the latest during the first effects of black liquor evapn.

Last updated on 2020-23-09 at 05:43