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通过对华南南京两台300MW机组锅炉掺烧阳泉煤的实验室和实炉参烧试验,得到锅炉掺烧阳泉煤对运行可靠性和经济性的影响,并对产生这些影响的因素进行了简要分析。结果表明掺烧阳泉煤是成功的,可扩大燃煤范围并降低成本,取得很好的经济效益。 相似文献
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Ce-doped Bi_2O_3 nanopowders were prepared by reverse titration chemical coprecipitation from Bi~(3+)and Ce~(4+)containing aqueous solution.Techniques of X-ray diffraction(XRD),transmission electron microscopic(TEM)and Fourier transform infrared spectroscopy(FTIR)were employed to characterize the as-synthesized materials.The XRD patterns indicated that the peaks can be easily indexed toβ-Bi_2O_3 and no diffraction peaks of Ce or other impurity phases were detected in the prepared samples.The calculated average crystalline size decreased from 31.72 to 11.96 nm when the Ce content increased from 1 wt%to 10 wt%.The morphology changed from flake-like into the spherical-like with increase in Ce content.The electric conductivity of Ce-doped Bi_2O_3 electrolyte was also investigated by two probe DC method.Conductivity analysis exhibited that the rate of conductivity increased with increasing Ce~(2+)ratio,when the Ce concentration was up to 5 wt%,the as-synthesized Ce-doped Bi_2O_3 electrolyte showed the maximum value of conductivity(0.295 S?cm~(–1)). 相似文献
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Ce-doped Bi2O3 nanopowders were prepared by reverse titration chemical coprecipitation from Bi3+ and Ce4+ containing aqueous solution. Techniques of X-ray diffraction (XRD), transmission electron microscopic (TEM) and Fourier transform infrared spectroscopy (FTIR) were employed to characterize the as-synthesized materials. The XRD patterns indicated that the peaks can be easily indexed to β-Bi2O3 and no diffraction peaks of Ce or other impurity phases were detected in the prepared samples. The calculated average crystalline size decreased from 31.72 to 11.96 nm when the Ce content increased from 1 wt% to 10 wt%. The morphology changed from flake-like into the spherical-like with increase in Ce content. The electric conductivity of Ce-doped Bi2O3 electrolyte was also investigated by two probe DC method. Conductivity analysis exhibited that the rate of conductivity increased with increasing Ce2+ ratio, when the Ce concentration was up to 5 wt%, the as-synthesized Ce-doped Bi2O3 electrolyte showed the maximum value of conductivity(0.295 S·cm–1). 相似文献
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