中国电机工程学报2011，Vol.31Issue(32)：53-61,9.
惰性载体Al_2O_3对Fe_2O_3及CuO氧载体煤化学链燃烧的影响
Effect of Inert Support Al_2O_3 on the Chemical Looping Combustion of Coal With Fe_2O_3 and CuO-based Oxygen Carrier
摘要
Abstract
Oxygen carrier（OC） is the basis for chemical looping combustion of coal and inert support is the necessary part of OC.Al2O3 was adopted as the typical inert support and the reaction of Liupanshui（LPS） coal with Fe2O3,CuO based OC was systematically investigated by various experimental means,including thermogravimetric analysis（TGA）,Fourier transform infrared spectroscopy（FTIR）,field scanning electron microscopy coupled with energy-dispersive X-ray spectrometry（FSEM-EDX） and X-ray diffraction（XRD） analysis.It was found that,the introduction of Al2O3 to Fe2O3 and CuO made the surface areas of these two OC greatly increased and the pore distribution more optimized,which benefited the primary gaseous products of LPS coal to react with Fe2O3 and CuO.Furthermore,during the reaction of LPS with these two OC,the optimized pore size distribution promoted more sufficient reaction of LPS coal with Fe2O3,and thus more Fe2O3 was reduced into lower valence oxides than Fe3O4;but for CuO based OC,their solid reduced products with LPS were Cu,Cu2O,and the real inert support CuAl2O4 present in the CuO based OC was also found to have some reactivity and be reduced to CuAlO2.Finally,Fe3Al2（SiO4）3 was identified out by the interaction of the deep reduced Fe2O3,part of Al2O3 and SiO2 for the reaction of LPS with Fe2O3 based OC,but（Cu0.215Mg1.785）（Al4Si5O18） was formed for the reaction of LPS coal with CuO based OC.关键词
煤/CO2捕获/化学链燃烧/Fe2O3、CuO氧载体/惰性载体Al2O3Key words
coal/CO2 capture/chemical looping combustion/Fe2O3 and CuO oxygen carrier/inert support Al2O3分类
能源科技引用本文复制引用
王保文,赵海波,郑瑛,柳朝晖,郑楚光,晏蓉..惰性载体Al_2O_3对Fe_2O_3及CuO氧载体煤化学链燃烧的影响[J].中国电机工程学报,2011,31(32):53-61,9.基金项目
国家自然科学基金项目（50906030,50936001) （）
国家重点基础研究发展规划项目（2010CB227003,2011CB707301)~~ （）
