Experimental investigations on combustion characteristics of syngas composed of CH<sub>4</sub>, CO, and H<sub>2

doi:10.1007/s11705-010-0513-x

Front Chem Eng Chin

2010, Vol. 4

Issue (4) : 404-410 https://doi.org/10.1007/s11705-010-0513-x

RESEARCH ARTICLE

Experimental investigations on combustion characteristics of syngas composed of CH₄, CO, and H₂

Qingwei FAN, Shien HUI, Qulan ZHOU(

), Qinxin ZHAO, Tongmo XU

State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China

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Abstract

The residual gas and remained raw gas in dual gas resources polygeneration system are quite complex in components (mainly CH₄, CO, and H₂), and these results to the distinguished differences in combustion reaction. Experimental investigations on basic combustion characteristics of syngas referred above are conducted on a laboratory-scale combustor with flame temperature and flue gas composition measured and analyzed. Primary air coefficient (PA), total air coefficient (TA), and components of the syngas (CS) are selected as key factors, and it is found that PA dominates mostly the ignition of syngas and NO_x formation, while TA affects the flue gas temperature after high temperature region and NO_x formation trend to be positive as H₂/CO components increase. The results provide references for industrial utilization.

Keywords dual gas resources polygeneration lean premixed combustion residual gas remained raw gas NO_x emission

Corresponding Author(s): ZHOU Qulan,Email:zql@mail.xjtu.edu.cn

Issue Date: 05 December 2010

Cite this article:

Qingwei FAN,Shien HUI,Qulan ZHOU, et al. Experimental investigations on combustion characteristics of syngas composed of CH₄, CO, and H_{2[J]. Front Chem Eng Chin,
2010, 4(4): 404-410.}

URL:

https://academic.hep.com.cn/fcse/EN/10.1007/s11705-010-0513-x
https://academic.hep.com.cn/fcse/EN/Y2010/V4/I4/404

Fig.1 Experimental set up

Tab.1 Flow rates and components of syngas

Tab.2 Flow rates and proportions of syngas

Fig.2 Temperatures at the center of the burner exit

Fig.3 Temperature profiles for different PA of various syngas proportions

Fig.4 NO emissions for different PA of various syngas proportions

Fig.5 Temperature profiles for different TA of syngas proportion is 1∶ 1∶ 1

Fig.6 NO emissions for different TA of various syngas proportions

Fig.7 Temperature profiles for various syngas at PA= 0.4, TA= 1.2

Fig.8 NO emissions for various syngas with different proportions at PA= 0.4, TA= 1.2

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