载氧体是化学链燃烧的关键因素之一，CuO是适合于氧气解耦化学链燃烧的载氧体之一。采用浸渍法制备了200-300μm的铜基载氧体颗粒，发现烧结会使铜基载氧体载氧量随循环次数增加而衰减。采用制备复合载氧体的方法改善铜基的烧结问题，发现铜钴、铜镁、铜镍、铜锶四种复合载氧体可以使得载氧量稳定。
The performance of oxygen carrier is important to chemical looping combustion （CLC）. The Cu-based oxygen carrier is an alternative for chemical looping with oxygen uncoupling （CLOU） for solid fuels. Cu-based oxygen carrier of 200-300 μm was prepared by impregnation, and TGA experiment results showed that the sintering of Cu-based oxygen carrier lead to poor cyclic stability of oxygen capacity. Composite metal oxide oxygen carriers were tested to improve the sintering, and it turned out that the Cu-Co, Cu-Mg, Cu-Ni and Cu-Sr composite oxygen carriers showed excellent cyclic stability.
参考文献
| [1] | Chemical-looping with oxygen uncoupling for combustion of solid fuels[J].International Journal of Greenhouse Gas Control,2009(1):11-19. |
| [2] | Alexander Shulman .Manganese/Iron, Manganese/Nickel, and Manganese/Silicon Oxides Used in Chemical-Looping With Oxygen Uncoupling (CLOU) for Combustion of Methane[J].Energy & Fuels,2009(5):5269-5275. |
| [3] | Juan Adanez;Francisco Garcia-Labiano;Luis F.de Diego;Pilar Gayan;Javier Celaya .Nickel-Copper Oxygen Carriers To Reach Zero CO and H_2 Emissions in Chemical-Looping Combustion[J].Industrial & Engineering Chemistry Research,2006(8):2617-2625. |
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