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中文摘要：
采用溶胶一凝胶法制备了CuO／CuAl204氧载体，在C02气氛下和空气气氛下，分别研究了该氧载体的释氧和吸氧性能，研究结果表明，随着温度的升高，氧载体的释氧、吸氧速率不断升高．随后在N2气氛下研究了3种典型煤的化学链氧解耦燃烧过程，结果表明，煤中挥发分的含量直接影响燃烧过程的快慢，在氧解耦燃烧时，高挥发分的褐煤尾气中，CO2体积分数比无烟煤高15％左右，褐煤中碳的平均转化率为无烟煤的2～3倍．
英文摘要：
A sol-gel derived CuO/CuA1204 oxygen carrier was investigated in a fluidization bed reactor in CO2 and air surroundings, respectively, to clarify its oxygen releasing and uptaking ability. The results illustrate that the oxy- gen releasing and uptaking speed increases with the rise of temperature. Then, three typical coals from China were used in the chemical looping with oxygen uncoupling （CLOU）in N2 surroundings to study their reaction properties. According to our analysis, the volatiles in the coal are crucial to the conversion process, which means that higher volatiles in the coal lead to faster coal conversion. In addition, CO2 concentration in the gas products for the lignite is about 15% higher than that for the anthracite; the average carbon conversion rate for the lignite is 2-3 times that for the anthracite.
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