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

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 NOx formation, while TA affects the flue gas temperature after high temperature region and NOx formation trend to be positive as H2/CO components increase. The results provide references for industrial utilization. © 2010 Higher Education Press and Springer-Verlag Berlin Heidelberg.