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Effects of Jatropha oil blending with C-heavy oil on soot emissions and heat absorption balance characteristics for boiler combustion
Renewable Energy ( IF 8.7 ) Pub Date : 2018-04-06
Nozomu Hashimoto, Hiroyuki Nishida, Msayoshi Kimoto, Kazuki Tainaka, Atsushi Ikeda, Satoshi Umemoto

This study investigated the effect of crude Jatropha oil (CJO) blending with C-heavy oil on the combustion characteristics of oil-fired boilers. Combustion experiments were conducted using a 550 kW liquid fuel combustion test facility equipped with a steam-atomizing burner. The results indicated that the flame radiation intensity is decreased by the CJO blending with C-heavy oil. Consequently, the heat absorption of the sections near the burner decreases. Due to the lower nitrogen and sulfur contents in CJO, the NOx and SO2 emissions are decreased by the CJO blending with C-heavy oil. It was also found that both the particulate matter concentration and the particle size in the exhaust gas are decreased by the CJO blending. This is attributed by the low carbon residue content of CJO. The results of this study imply that when CJO is introduced into oil-fired thermal power stations, considerable attention should be paid to changes in the heat absorption balance and the possibility of a decrease in the particle collection efficiency of the electrostatic precipitator.



中文翻译:

麻风树油与C重油的共混物对锅炉燃烧过程中烟尘排放和吸热平衡特性的影响

这项研究调查了粗麻风树油(CJO)与C重油的混合对燃油锅炉燃烧特性的影响。使用配备有蒸汽雾化燃烧器的550 kW液体燃料燃烧测试设备进行燃烧实验。结果表明,CJO与C-重油共混可降低火焰的辐射强度。因此,燃烧器附近的部分的热吸收减少。由于CJO中的氮和硫含量较低,因此NOx和SO 2通过将CJO与C重油混合可减少排放。还发现通过CJO混合降低了废气中的颗粒物浓度和粒径。这归因于CJO的低碳残基含量。这项研究的结果表明,将CJO引入燃油火力发电厂时,应特别注意吸热平衡的变化以及静电除尘器颗粒收集效率降低的可能性。

更新日期:2018-04-07
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