Inventors:
Richard F. Abrams - Westborough MA, US
Mark R. Lewis - Woonsocket RI, US
Jeffrey Penterson - Putnam CT, US
Assignee:
Babcock Power Environmental Inc. - Worcester MA
International Classification:
B01D 53/34, B01D 53/56, B01D 53/62, B01D 53/72, B01D 53/74
US Classification:
423210, 4232155, 4232391, 423247, 4232453, 422168, 422169, 422170, 422171, 422177, 422180, 110205, 431 11
Abstract:
An air pollution control system includes an emission treatment system configured to receive flue gas, to reduce at least one pollutant therefrom, and to output emission treated flue gas. A first air heater in fluid communication with the emission treatment system includes a heat exchanger for heating forced air introduced thereto above a base temperature and thereby cooling emission treated flue gas from the emission treatment system to a stack discharge temperature. A second air heater in fluid communication with the first air heater to receive heated forced air therefrom includes a heat exchanger for heating forced air introduced thereto to a preheat temperature for combustion in a boiler and thereby cooling flue gas introduced from a boiler to the second air heater to an emission treatment temperature. The second air heater is in fluid communication with the emission treatment system to introduce cooled flue gas thereto.