Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – For chemical recovery of chemicals from waste paper making...
Patent
1978-09-01
1980-02-05
Marcus, Michael S.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
For chemical recovery of chemicals from waste paper making...
162 30R, 162 30K, 261 21, 422193, 422194, 422172, 422173, 422 20, 423DIG3, B01J 1000, C01B 1716, D21C 1106, D21C 1112
Patent
active
041872797
ABSTRACT:
A device for recovering chemicals from flue gases and green liquor obtained from burning the waste liquor of sodium based pulping processes, which device comprises a precarbonation reactor, a H.sub.2 S-stripping column, a carbonation reactor, a washing tower for flue gases and a cooling tower for washed flue gases, at least the carbonation reactor, the cooling tower and the washing tower being arranged on top of each other in the same column which is provided with trays so that means for feeding flue gases from the washing tower into the cooling tower and further into the carbonation reactor are openings made in the trays to allow the washed flue gases to rise from the washing tower into the cooling tower above it and further into the carbonation reactor above the cooling tower, common blower means for feeding flue gases into the washing tower for blowing flue gases through the washing tower, the cooling tower, the carbonation reactor and the precarbonation reactor and means for discharging a solution containing sodium carbonate and sodium bicarbonate from the stripping column being connected with means for feeding this solution directly into the carbonation reactor and the washing tower.
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Marcus Michael S.
OY Tampella AB
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