Laminar entrained flow reactor (LEFR) was used to determine the effect of
temperature and residence time on the distribution of carbon, sulfur and nitrogen between
gaseous and condensed phase products from low temperature pyrolysis of kraft black
liquor. The operating furnace temperatures were between 400°C-600°C where the effect
of condensable...
Combustion properties of kraft black liquor solids were studied using a laminar entrained flow reactor. The tendency of black liquors to release fume (compounds containing Na⁺, K⁺, Cl⁻, SO₄²⁻, SO₃²⁻, S₂0₃²⁻ and C0₃²⁻) during combustion were observed at 1000°C. Black liquor solids with a size fraction of 63 to 100...
Nitrogen evolution during black liquor pyrolysis and black liquor combustion were studied using a laminar entrained-flow reactor. The experimental conditions were 700-1100°C and 0.3-2.2 seconds residence time. The pyrolysis experiments were performed in a pure nitrogen atmosphere. The oxygen concentrations during the combustion of black liquor experiments were 4 and...