Oxy-fuel combustion oxidant heater internal arrangement

摘要

A regenerative oxidant preheater internal arrangement, including a system and method for use thereof, utilizing a unique recycle oxy-combustion methodology which includes at least two primary combustion oxidant sectors placed adjacent to both the flue gas side as well as a secondary oxidant sector positioned between the two primary sectors. A tri-sector regenerative oxidant preheater apparatus, method and arrangement for utilization with oxy-fired pulverized coal combustion power plants.

主权项

1. A tri-sector rotary regenerative oxidant preheater including a stationary housing, a rotor rotatably mounted in the housing, sector plates located at the axial ends of the rotor for dividing the preheater into a flue gas sector, a secondary oxidant sector, and two primary oxidant sectors, the secondary oxidant sector being interposed between the primary oxidant sectors, and wherein during operation of the preheater, the flue gas sector and the primary oxidant sectors have a negative pressure environment, and the secondary oxidant sector has a positive pressure environment.