VERTICAL SCRUBBER WITH HELICAL FLOW PATH

WIPO Patent Application WO/2018/172407

A3

The invention concerns vertical scrubber (10) and a method for removal of inter alia SO2 from exhaust gas, wherein the scrubber comprises: - an upper part (12) and a lower part (13), - an outer cylindrical vertical pipe (11), - an inner cylindrical vertical pipe (9) arranged coaxially within the outer cylindrical pipe (11), - a gas inlet channel (23) for exhaust gas arranged in the lower part (13), - a gas outlet channel (24) for scrubbed exhaust gas arranged in the upper part (12), - a spiral (8) arranged between the outer cylindrical vertical pipe (11) and inner cylindrical vertical pipe (9), forming an upwardly rotational path for the gas flow (5), - a first washing section (14) comprising - a first washing liquid injection device (1) for adding washing liquid to the gas flow (5) and - a first washing liquid collector (3) for subsequent removal of a bulk portion of said added washing liquid, - a second washing section (15) comprising - a second washing liquid injection device (4) for adding washing liquid to the gas flow and - a second washing liquid collector (7) for subsequent removal of a bulk portion of said added washing liquid, and wherein the second washing section (15) is displaced upward relative to the first washing section (14) within the upwardly rotational path, and - a washing liquid guiding channel (16) configured to guide the washing liquid collected from the second washing section (15) into the washing liquid injection device (1) of the first washing section (14).

BRYNHI TAALE (NO)

PCT/EP2018/057157

November 15, 2018

March 21, 2018

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RSSS AS (NO)

B01J19/00; B01D47/12; B01D53/14; B01D53/18

US5298043A	1994-03-29
US4193205A	1980-03-18
CN106390706A	2017-02-15
JP3247200B2	2002-01-15

ONSAGERS AS (NO)

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