The fate of nitrogen in the chemical recovery process in a kraft pulp mill. Part V: Kinetics of ammonia formation from cyanate in industrial green liquor

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: DeMartini N, Forssen M, Murzin DY, Hupa M
Förläggare: PULP & PAPER TECHNICAL ASSOCIATION CANADA
Publiceringsår: 2004
Tidskrift: Journal of Pulp and Paper Science
Tidskriftsakronym: J PULP PAP SCI
Volym: 30
Nummer: 12
Artikelns första sida, sidnummer: 329
Artikelns sista sida, sidnummer: 334
Antal sidor: 6
ISSN: 0826-6220


Abstrakt

This paper is the fifth in a series on the nitrogen chemistry in the chemical recovery cycle of kraft pulp in ills. It compares a kinetic expression for the formation of ammonia from cyanate with experimental data for the decomposition of cyanate in kraft pulp mill green liquors from three mills, as well as mill balance data from one of the mills. The kinetic expression accounts for both the uncatalyzed reaction and the reaction catalyzed by bicarbonate. Borate was added to an industrial green liquor to determine whether boron has a catalytic effect in green liquor, and no noticeable effect was observed.

Senast uppdaterad 2019-16-07 vid 06:18