Catalytic sulfur trioxide flue gas conditioning

Gas separation: processes – With control responsive to sensed condition – Electric or electrostatic field

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55292, 95 12, 95 58, 95 68, 95 78, 96 52, 110345, 422176, 422177, 42324402, B03C 3013

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active

055407552

ABSTRACT:
A method for the selective control of the sulfur trioxide concentration in flue gases, to enhance the ash removal efficiency of electrostatic precipitators, which includes: catalytically converting a portion of the sulfur dioxide contained within the flue gas to sulfur trioxide, by passing a portion of such flue gas through at least one catalyst containing converter module which is positioned within such a flue gas stream; and selectively varying the quantity of flue gas passing through such module by providing an aspirating force to cause flue gas to be drawn through such a converter module.

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