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Olive cake combustion in a circulating fluidized bed

机译：循环流化床中橄榄饼燃烧

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In this study, a circulating fluidized bed of 125 mm diameter and 1800 mm height was used to find the combustion characteristics of olive cake (OC) produced in Turkey. A lignite coal that is most widely used in Turkey was also burned in the same combustor. The combustion experiments were carried out with various excess air ratios. The excess air ratio, λ, has been changed between 1.1 and 2.16. Temperature distribution along the bed was measured with thermocouples. On-line concentrations of O_2, SO_2, CO_2, CO, NO_x and total hydrocarbons were measured in the flue gas. Combustion efficiencies of OC and lignite coal are calculated, and the optimum conditions for operating parameters are discussed. The combustion efficiency of OC changes between 82.25 and 98.66% depending on the excess air ratio. There is a sharp decrease observed in the combustion losses due to hydrocarbons and CO as the excess air ratio increases. The minimum emissions are observed at λ = 1.35. Combustion losses due to unburned carbon in the bed material do not exceed 1.4 wt% for OC and 1.85 wt% for coal. The combustion efficiency for coal changes between 82.25 and 98.66% for various excess air ratios used in the study. The ash analysis for OC is carried out to find the suitability of OC ash to be used as fertilizer. The ash does not contain any hazardous metal.
机译：在这项研究中，使用直径为125 mm，高度为1800 mm的循环流化床来发现土耳其生产的橄榄饼（OC）的燃烧特性。土耳其使用最广泛的褐煤也在同一燃烧室中燃烧。燃烧实验是在各种过量空气比率下进行的。空气过剩率λ已在1.1和2.16之间更改。用热电偶测量沿床的温度分布。测量烟气中的O_2，SO_2，CO_2，CO，NO_x和总烃的在线浓度。计算了OC和褐煤的燃烧效率，并讨论了运行参数的最佳条件。 OC的燃烧效率在82.25到98.66％之间变化，具体取决于过量空气比率。随着过量空气比例的增加，由于碳氢化合物和一氧化碳所引起的燃烧损失急剧下降。在λ= 1.35处观察到最小发射。由于床层材料中未燃烧的碳而导致的燃烧损失，对于OC而言不超过1.4 wt％，对于煤而言，不超过1.85 wt％。在研究中使用的各种过量空气比率下，煤的燃烧效率在82.25至98.66％之间变化。进行了OC灰分分析，以找到适合用作肥料的OC灰分。烟灰不含任何有害金属。

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