| 摘要 |
A method to remove sulphides and other volatile contaminants from liquor vapor condensate in a pulp manufacturing process, where the mentioned liquor vapor condensate is fed into a stripper, which is part of a closed loop system comprising said stripper, a regenerative thermal oxidization process (RTO) and a SO2 scrubber, in which loop a gas is circulated, preferably air and such components formed or stripped off, in this loop whereafter the circulating gas is stripping off sulphides and other volatile components from the liquor vapor condensate, whereafter the gas stream is fed into an RTO process, where the stripped off contaminants are combusted are under formation of SO2 and thereafter the SO2 enriched gas is led to a SO2 scrubber, where preferably alkali is used as absorption medium, and thereafter the circulating gas is returned back into the stripper.
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