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微波辐照增强原煤磁分离脱硫机理探讨 总被引:5,自引:0,他引:5
采用~(57)Fe穆斯堡尔谱学方法,研究微波-磁分离法脱硫机理及微波辐照深度对脱硫率的影响。结果表明,微波选择性介质加热,可以激励煤中顺磁性黄铁矿FeS_2热解,使其转化为非化学计量的磁黄铁矿Fe_(1-x)S(0相似文献
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57Fe Mossbauer spectroscopy was used to investigate the evolution of Fe-Zn binary metal oxide sorbent in the process of high-temperature fuel gas desulfurization. The results of phase analyses show that Fe-Zn binary metal oxide sorbent is rapidly reduced in hot fuel gas and decomposed to new phases of highly dispersed microcrystalline elemental iron and zinc oxide, both of which become the active desulfurization constituents. A complementary and synergistic effect between active iron acting as a high sulfur capacity constituent and active zinc oxide acting as a deep refining desulfurization constituent exists in this type of sorbent for hot fuel gas desulfurization. 相似文献
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采用~(57)Fe M(?)ssbauer谱学方法,跟踪考察新一代Fe-Zn二元金属氧化物脱硫剂在高温燃气脱硫过程中的相态变化.结果表明,该脱硫剂在高温燃气中迅速还原,分解析出活性脱硫组分——高分散微晶态零价铁和氧化锌新相.前者承担提高硫容的粗脱硫功能,后者承担提高净化度的精细深度脱硫功能,两者存在互补协同效应. 相似文献
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一、原子核的电四极矩原子核的内禀电四极矩,来源于核电荷的非球形分布,一般可用并矢或(3×3)二秩不可约张量表示。如果选择核自旋轴I(沿z轴)为核电四极矩主轴,由于核对自旋轴的旋转对称性,电四极矩仅有一个独立分量,称为标量电四极矩. 相似文献
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