SCREENING OF DIFFERENT MANGANESE ORES FOR CHEMICAL-LOOPING COMBUSTION (CLC) AND CHEMICAL-LOOPING WITH OXYGEN UNCOUPLING (CLOU)
Oxygen carriers based on manganese oxides have recently shown great promise for use in chemical-looping combustion (CLC) and chemical-looping with oxygen uncoupling (CLOU).In this work, different manganese ores have been investigated for application in CLC and CLOU.The reactivity towards methane and synthesis gas (50% CO in H2) and the oxygen uncoupling behaviour at 900, 950 and 1000℃ have been investigated.The mechanical stability and integrity of the ores were also evaluated in a jet-cup attrition rig.It was found that some of the ores could convert approximately 70-80% of methane added to carbon dioxide, and most of them achieved almost complete gas yield for synthesis gas.The materials released small amounts of oxygen during the inert cycles.Some of the investigated ores also exhibited low rates of attrition.The combination of high reactivity with different fuel gases, relatively low attrition rates and low cost make these manganese ores highly interesting for a CLC process based on interconnected fluidized beds.
Sebastian Sundqvist Mehdi Arjmand Tobias Mattisson Henrik Leion Magnus Rydén Anders Lyngfelt
Department of Chemical and Biological Engineering,Division of Environmental Inorganic Chemistry,Chal Department of Energy and Environment,Division of Energy Technology,Chalmers University of Technology
国际会议
The 11th International Conference on Fluidized Bed Technology(CFB-11)(第十一届流化床技术国际会议)
北京
英文
893-898
2014-05-14（万方平台首次上网日期，不代表论文的发表时间）