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

fYear

2009

fDate

6-7 April 2009

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-4934-7

Type

conf

DOI

10.1109/SUPERGEN.2009.5348068

Filename

5348068