Experimental study on oxy-fuel combustion of heavy oil |
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| Authors: | Zhiqiang Wang Ming Liu Xingxing Cheng Yusheng He Yingjie Hu Chunyuan Ma |
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| Affiliation: | 1. School of Energy and Power Engineering, Shandong University, Shandong Province, China;2. Zhejiang Zhe Neng Institute of Technology Co., Ltd, Yuhang District, Hangzhou, Zhejiang Province, China |
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| Abstract: | Oxy-fuel combustion of heavy oil can be applied to oil field steam injection boilers, allowing the utilization of both heavy oil and CO2 resources. 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 O2 concentrations of 29%, as the O2 concentration 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/CO2 atmospheres were below those seen in O2/N2 atmospheres. The volume of NO emitted in the flue gas was almost unaffected by the change in O2 concentrations in atmospheres containing high concentrations of CO2, but it increased rapidly with increasing O2 concentration in O2/N2 atmospheres. |
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| Keywords: | Oxy-fuel combustion Heavy oil Excess air coefficient Combustion characteristics Temperature |
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