Experimental study on oxy-fuel combustion of heavy oil
Experimental study on oxy-fuel combustion of heavy oil
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DOI：
10.1016/j.ijhydene.2017.06.105
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发表时间：
2017-08
影响因子：
7.2
通讯作者：
Zhiqiang Wang;Ming Liu;Xingxing Cheng;Yusheng He;Yingjie Hu;Chunyuan Ma
中科院分区：
文献类型：
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作者：
Zhiqiang Wang;Ming Liu;Xingxing Cheng;Yusheng He;Yingjie Hu;Chunyuan Ma
油田注汽锅炉可采用重油富氧燃烧，实现了重油和二氧化碳资源的双重利用。研究了不同条件下重油的富氧燃烧特性，包括火焰特性、温度特性和污染物排放特性。结果表明，在O2浓度为29%时，重油燃烧稳定，随着O2浓度的增加，火焰开始逐渐变亮，变短变厚，温度梯度变大，高温区向燃烧器出口移动。O2/CO2气氛中的整体温度和燃烧速率低于O2/N2气氛中看到的。在高浓度CO2气氛中，烟气中NO的排放量几乎不受O2浓度变化的影响，但随着O2/N2气氛中O2浓度的增加，NO排放量迅速增加。
Oxy-fuel combustion of heavy oil can be applied to oil field steam injection boilers, allowing the utilization of both heavy oil and CO2resources. The present study investigated the oxy-fuel combustion characteristics of heavy oil under different conditions, including the flame, temperature, and pollutant emission characteristics. The results showed that heavy oil combustion was stable at O2concentrations of 29%, as the O2concentration was increased, the flame began to brighten gradually, becoming shorter and thicker, while the temperature gradient became higher and the high temperature zone moved closer to the burner exit. The overall temperature and the combustion rates in O2/CO2atmospheres were below those seen in O2/N2atmospheres. The volume of NO emitted in the flue gas was almost unaffected by the change in O2concentrations in atmospheres containing high concentrations of CO2, but it increased rapidly with increasing O2concentration in O2/N2atmospheres.