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| - Catalytic Seawater Flue GasDesulfurization Process: AnExperimental Pilot Plant Study
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| - In previous articles by the authors on seawater S(IV)oxidation kinetics, a significant catalytic effect wasdemonstrated by means of a commercially availableactivated carbon. The aims of this study carried out atpilot plant scale were to assess the use of high-efficiencystructured packing and to validate the positive resultsobtained previously in laboratory studies. A comparisonbetween a packed tower and a spray column was made bymaintaining the same desulfurization efficiency. A 47%reduction in seawater flow can be obtained with a packedtower. This option seems to be more economical, with areduction in operation costs of least of 33%. With theappropriate activated carbon, it is possible to reach a greateroxidation rate at a low pH level than by operatingconventionally at a high pH level without a catalyst. Apreliminary technical and financial comparison betweenthe advanced seawater desulfurization process (equippedwith a packed tower and a catalytic oxidation plant)and the conventional process (spray tower and noncatalyticoxidation) was carried out.
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