FUEL NITROGEN RELEASE DURING BLACK LIQUOR PYROLYSIS .1. LABORATORY MEASUREMENTS AT DIFFERENT CONDITIONS

Authors
AHO K HUPA M VAKKILAINEN E
Citation
K. Aho et al., FUEL NITROGEN RELEASE DURING BLACK LIQUOR PYROLYSIS .1. LABORATORY MEASUREMENTS AT DIFFERENT CONDITIONS, Tappi journal, 77(5), 1994, pp. 121-127
Citations number
10
Categorie Soggetti
Materials Science, Paper & Wood
Journal title
Tappi journal → ACNP
ISSN journal
07341415
Volume
77
Issue
5
Year of publication
1994
Pages
121 - 127
Database
ISI
SICI code
0734-1415(1994)77:5<121:FNRDBL>2.0.ZU;2-X
Abstract
Fuel nitrogen release during black liquor pyrolysis is high. There is only minor release during the drying stage. Ammonia is the main fixed nitrogen species formed. The rate of fixed nitrogen release increases with increasing temperature. The level of fixed nitrogen released by b irch liquor is almost twice the level for pine liquor. Assuming comple te conversion to NO, fixed nitrogen yields gave NO concentrations near typically measured values for flue gases in full scale recovery boile rs.