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

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

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Higher Education Press and Springer-Verlag Berlin Heidelberg