Title :
The use of iron oxide as an oxygen carrier in chemical looping combustion taking CO and biomass gas as fuels
Author :
Dong, Changqing ; Zhang, Junjiao ; Shan, Liang ; Yang, Yongping
Author_Institution :
Nat. Eng. Lab. of Biomass Power Generation Equip., North China Electr. Power Univ., Beijing, China
Abstract :
Chemical-looping combustion (CLC) has been suggested as an energy efficient method for CO2 capture without extra energy cost for the separation of CO2. In CLC oxygen is transferred from the combustion air to fuel by means of an oxygen carrier. The fuel and the combustion air are never mixed, and the combustion products (CO2 and steam) are kept separate from the flue gas. After condensation of the water almost pure CO2 is obtained. In this paper, the feasibility of using iron oxide as an oxygen carrier has been investigated in a fluidized-bed. CO and biomass gas were taken as fuels, and the tests were performed at different temperatures and cycle number. The influence on CLC process of reaction conditions was investigated.
Keywords :
air pollution control; biofuel; carbon compounds; combustion; flue gases; iron compounds; separation; CO2 capture; CO2 separation; Fe2O3; biomass gas; chemical looping combustion; flue gas; fluidized bed; fuel; iron oxide; oxygen carrier; Biomass; Chemicals; Combustion; Costs; Energy capture; Energy efficiency; Flue gases; Fluidization; Fuels; Iron; Biomass gas; Chemical-looping combustion; iron oxide;
Conference_Titel :
Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4934-7
DOI :
10.1109/SUPERGEN.2009.5348068
