COMPUTATIONAL EVALUATION OF WALL RINGS IN WET FLUE-GAS DESULFURIZATION PLANTS

• DOI: 10.1615/interjenercleanenv.v10.i1-4.20
• Publication Date: 2011-10-25T12:40:19Z
• Authors: C. Montanes; A. Gomez-Samper; Norberto Fueyo; J. C. Ballesteros; P. Gomez-Yague
• Keywords: Mist

A wet flue-gas desulfurization plant was simulated using a finite-volume commercial computational fluid dynamics (CFD) code with some extensions. An Eulerian model used to the gas phase, while slurry Lagrangian approach. mathematical formulated and implemented simulate SO2 absorption by droplets, taking into account influence of Reynolds Schmidt numbers temperature. The mist eliminators accounted for introducing pressure loss which is dependent on magnitude axial velocity. results from are in good agreement measurements provided operators (velocity contours at absorber entrance sulfur dioxide outlet). effect overall installing peripheral wall rings evaluated, resulting an efficiency improvement about four percentage points, but penalizing global 8%, depending operating conditions. wide-ranging parametric study carried out, varying physical parameters, such as conditions; numerical mesh size wall-droplet interaction; geometrical designs, ring size.