Department of Chemical Engineering, Chung Yuan Christian University, Chung-Li 32023, Taiwan, ROC.
Bioresour Technol. 2012 Jul;116:184-9. doi: 10.1016/j.biortech.2012.04.041. Epub 2012 Apr 21.
This paper presents results obtained from corncob combustion in a pilot scale vortexing fluidized bed combustor (VFBC). Three combustion modes including direct combustion, staged combustion and flue gas recirculation (FGR) combustion were employed, and their combustion and pollutant emission characteristics were studied. In addition, the effects of combustion fraction and bed temperature on pollutant emission characteristics were investigated. The experimental results show that the combustion fractions vary with different combustion modes, resulting in different CO and NO emission characteristics. Staged and FGR combustions can reduce the NO emission concentration. Under similar working condition, NO concentration decreases by 30% in FGR mode, while 15% in staged mode compared with direct mode.
本文介绍了在小型旋流流化床燃烧器（VFBC）中进行玉米芯燃烧所获得的结果。采用了直接燃烧、分段燃烧和烟气再循环（FGR）燃烧三种燃烧模式，并研究了它们的燃烧和污染物排放特性。此外，还研究了燃烧分数和床温对污染物排放特性的影响。实验结果表明，燃烧分数随燃烧模式的不同而变化，导致 CO 和 NO 排放特性也不同。分段燃烧和 FGR 燃烧可以降低 NO 的排放浓度。在相似的工作条件下，FGR 模式下的 NO 浓度降低了 30%，而分段模式下则降低了 15%，与直接燃烧模式相比。
