Patent ID: 7459009
Filing Date: 2008-12-02
Classification: B03C,Y10S

Abstract:
1. An apparatus for removing particulate matter from a gas stream downstream of a flue gas desulphurization (FGD) scrubber, the apparatus comprised of: a mist-producing element located in an inlet to the apparatus; a down-flow wet Electrostatic Precipitator (WESP) first pass section in flow communication with the inlet, and a down-flow WESP second pass section in flow communication with the first pass section; an ionizing electrode stage located in each of the first and second pass sections; a plurality of collecting surfaces in the form of an array of polygonal-shaped tubes located in each of the sections, each wall of said polygonal-shaped tubes having a bottom edge defining a V-shape cut-out creating gutter and tubular shape leaders; an interstage drain located at the bottom of each pass section; and a first high voltage power supply electrically connected to the first pass section; and a second high voltage power supply electrically connected to the second pass section.