Optical experimental study on the characteristics of impinging coal-water slurry flame in an opposed multi-burner gasifier
Optical experimental study on the characteristics of impinging coal-water slurry flame in an opposed multi-burner gasifier
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对置多喷嘴气化炉水煤浆冲击火焰特性光学实验研究
DOI：
10.1016/j.fuel.2016.10.028
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发表时间：
2017-01
期刊：
影响因子：
7.4
通讯作者：
Yu Guangsuo
中科院分区：
文献类型：
--
作者：
Song Xudong;Guo Qinghua;Hu Chonghe;Gong Yan;Yu Guangsuo
撞击火焰已被用于各种各样的工业过程，特别是用于反向逆流气化技术。火焰的有效监测和控制是实现高能效、气化过程可靠诊断和最佳气化技术的核心。利用实验室规模的对置式多燃烧器（OMB）气化炉中水煤浆（CWS）气化过程中撞击区的发射光谱分析，确定了主导反应的判据。撞击区有明显的自由基排放，包括OH-、H-、NO-、CO2-、Na-和K-等。在波长大于400 nm的地方出现强烈的黑体辐射。自由基排放量随O/C呈非线性变化，在一定O/C时有一个最大值，与气氛变化一致，可作为气化过程中主导反应的判据。在燃烧器平面上不同条件下，OH自由基强度的变化趋势与温度和CO2浓度的变化趋势相似。燃烧器平面的温度在反应区最低。H_（12）的变化趋势与OH_（12）相似，OH_（12）/H_（12）与O_（12）/C呈线性相关。
Impinging flames have been used for a wide variety of industrial processes, especially for opposed entrained-flow gasification technology. The effective monitoring and controlling of flames are at the core of achieving high energy efficiency, reliable diagnosis for the gasification process and optimal gasification technology. Using an emission spectral analysis of an impinging area during coal-water slurry (CWS) gasification in a lab-scale opposed multi-burner (OMB) gasifier, the criterion for dominant reactions was identified. There were obvious radical emissions in the impinging area, including OH∗, H∗, NO∗, CO2∗, Na∗and K∗emissions. Intense black-body radiation appeared where the wavelength was longer than 400 nm. The radical emissions showed nonlinear variation with O/C, and there was a maximal value at the certain O/C, in accordance with the change of atmosphere, which could serve as a criterion for dominant reactions in gasification. The change tendency of OH∗intensity on different conditions at the burner plane was similar to those of temperature and CO2concentration. The temperature of the burner plane was the lowest in the reaction area. The change tendency of H∗was similar to that of OH∗, and there was a linear correlation between OH∗/H∗and O/C.
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对置多燃烧器气化炉中的冲击火焰特性
DOI：
10.1021/ie3027857
发表时间：
2013-02
期刊：
Industrial & Engineering Chemistry Research
影响因子：
--
作者：
Jie Zhang;Puxing Fan;Qingfeng Liang;Guangsuo Yu
通讯作者：
Guangsuo Yu
影响因子：
7.4
作者：
T. Parameswaran;R. Hughes;P. Gogolek;P. Hughes
通讯作者：
T. Parameswaran;R. Hughes;P. Gogolek;P. Hughes
影响因子：
4.4
作者：
P. V. Eyk;P. Ashman;Z. Alwahabi;G. Nathan
通讯作者：
P. V. Eyk;P. Ashman;Z. Alwahabi;G. Nathan
影响因子：
5.3
作者：
Xudong Song;Q. Guo;Chonghe Hu;Yan Gong;G. Yu
通讯作者：
Xudong Song;Q. Guo;Chonghe Hu;Yan Gong;G. Yu
影响因子：
5.3
作者：
P. Fan;Yan Gong;Qing Zhang;Q. Guo;G. Yu
通讯作者：
P. Fan;Yan Gong;Qing Zhang;Q. Guo;G. Yu