Black Liquor Evaporation


Edited by:  Jim Frederick and Niko DeMartini

Black Liquor Evaporation is the science, technology, and practice of successfully concentrating black liquor from weak liquor to firing concentrations.  Black liquor is an important internal process stream in kraft pulping containing almost all the spent inorganic pulping chemicals along with wood components extracted during pulping. Four to five tons of water must be evaporated per air-dried ton of pulp produced.
 
Weak black liquor is collected as filtrate from brownstock washers at a dry solids content between 14 wt% and 18 wt%.  In order for an evaporation plant to remove water from black liquor to be fired in a recovery boiler, the black liquor must be concentrated to between 65 wt% and 85 wt% dry solids content.  Hardback, full color.  Available Fall 2018.

Content of the book includes:
 
Introduction
Kraft pulp and black liquor production worldwide
Properties relevant to evaporation
Evaporation Fundamentals
Design principles and analysis for black liquor evaporation
Auxiliary processes
Scaling and fouling in black liquor evaporators
Research needs in black liquor evaporation
Terminology


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