| 摘要 |
The invention relates to a method for producing a nitrogen-containing fertilizer from a liquid black liquor, wherein a black liquor is formed from lignocellulose-containing biomass. A majority of contained lignin constituents are decomposed into monomeric, dimeric to trimeric compounds, and at least one free alkanolamine, in particular monoethanolamine, is removed from the liquid black liquor. The black liquor is cooled to room temperature and combined with water, a defined flowable state of the black liquor being set. The flowable black liquor is supplied to a mixing device and combined with powder solids so as to form a pasty mixture which is formed into granules. |
