Black Liquor – Evaporation Process Control
Black Liquor Samples- Samples are evaporator feed liquor as well as liquor after first two evaporators.
- Samples were run as received. Sample bottles were shaken and pipetted into a 5 mm id NMR tubes.
- NMR sample tubes were placed into a 60 MHz process NMR system and spectra collected.
- Spectra resolve lignin/cellulosic functionality of the black liquor from the water.
- Spectra show functionality changes as a function of concentration in the samples.