MEASURING THE KINETICS OF THE REDUCTION OF IRON OXIDE WITH CARBON MONOXIDE IN A FLUIDIZED BED

摘要：

Combusting a solid fuel in the presence of a metal oxide rather than air, chemical looping combustion, generates CO2 suitable for sequestration and the reduced metal. For the case of iron, the reduced oxide can be re-oxidized with steam to produce high-purity hydrogen. The reduction reactions of iron oxide in carbon monoxide and carbon dioxide mixtures were investigated in a fluidized bed. Activation energies and pre-exponential factors for the reactions (i) 3 Fe2O3 + CO(←→)2 Fe3O4 + CO2 and (ii)0.947 Fe3O4 + 0.788 CO(←→)3 Fe0.947O + 0.788 CO2(←→)were determined. The reaction order was verified to be unity, and the change in rate with conversion was examined.

关键词： reduction kinetics iron ozide fluidized bed chemical looping combustion

作者: C.D.Bohn J.P.Cleeton C.M.Müller S.A.Scott J.S.Dennis

作者单位: Department of Chemical Engineering and Biotechnology, University of Cambridge,Cambridge CB2 3RA, U K Department of Engineering, University of Cambridge, Cambridge CB1 1PZ, U K Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB2 3RA, U

会议类型: 国际会议

会议名称: 第20届国际流化床燃烧会议(20th International Conference on Fluidized Bed Combustion)

会议地点: 西安

会议语种:英文

页码: 555-561

在线出版日期: 2009-05-18（万方平台首次上网日期，不代表论文的发表时间）