In the method the black liquor is concentrated in a multi effect evaporation plant in order to obtain black liquor at {TAIL ~ a suitable dry solids content} for combustion and to generate {HEAD ~ vapor} 
In the method the black liquor is concentrated in a multi effect evaporation plant in order to obtain black liquor at { TAIL ~ a suitable dry solids content } for combustion and to generate { HEAD ~ vapor }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD