Abstract
Fluidized bed combustors generally exhibit good mixing characteristics, but there can be localized regions where there is insufficient oxygen to fully combust the fuel. Through incorporation of an oxygen carrier into a high pressure, pulverized fuel based oxy-fluidized bed combustor it should be possible to reduce or eliminate regions with insufficient oxygen present to complete combustion. In this paper we investigate the use of a Canadian ilmenite ore based oxygen carrier to enhance combustion performance and sulfur capture for atmospheric and pressurized oxy-FBC systems. The paper includes a description of potential pressurized system configurations with a discussion of related benefits and potential challenges. CanmetENERGY’s 50 kWth pilot scale atmospheric pressure oxy-fluidized bed combustor (oxy-FBC) was used to demonstrate the concept of oxygen carrier assisted combustion using two Canadian coals with under bed fuel and sorbent injection. The CO emissions were significantly reduced by replacing th...
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
