A system and method for producing salts using a crystallizer with an integrated
column is disclosed. In the column, liquid, containing one reactant, absorbs a
second reactant, from the gas stream. The second reactant reacts with the first
reactant to produce salt. Liquid leaving the column and rich in salt, collects
in the crystallizer. Conditions within the crystallizer promote nucleation and
crystal growth. A recirculation system withdraws a portion of liquid from the crystallizer
for introduction into the column.
