Catalytic seawater flue gas desulfurization process: an experimental pilot plant study
- University of Seville, Seville (Spain). Department of Chemical and Environmental Engineering
In previous articles by the authors on seawater S(IV) oxidation kinetics, a significant catalytic effect was demonstrated by means of a commercially available activated carbon. The aims of this study carried out at pilot plant scale were to assess the use of high-efficiency structured packing and to validate the positive results obtained previously in laboratory studies. A comparison between a packed tower and a spray column was made by maintaining the same desulfurization efficiency. A 47% reduction in seawater flow can be obtained with a packed tower. This option seems to be more economical, with a reduction in operation costs of least of 33%. With the appropriate activated carbon, it is possible to reach a greater oxidation rate at a low pH level than by operating conventionally at a high pH level without a catalyst. A preliminary technical and financial comparison between the advanced seawater desulfurization process (equipped with a packed tower and a catalytic oxidation plant) and the conventional process (spray tower and noncatalytic oxidation) was carried out. 18 refs., 4 figs., 4 tabs.
- OSTI ID:
- 20969805
- Journal Information:
- Environmental Science and Technology, Vol. 41, Issue 20; Other Information: vidal@esi.us.es; ISSN 0013-936X
- Country of Publication:
- United States
- Language:
- English
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