A Study on the Characteristics of Combustion Using Cow Manure Solid Fuel by Lab-scale Fluidized Bed Reactor

Abstract

Interest in new and renewable energy is growing worldwide in response to global warming and the depletion of fossil fuels, and utilize and distribute various new and renewable energy sources in response to global trend. This study conducted a combustion experiment using cow manure solid fuel. The characteristics of the cow manure solid fuel, the emission gas and odor during combustion, and the ash from the combustion were analyzed. The results of the dried cow manure solid fuel, the water content, ash component, sulfur composition, and heavy metals were found to satisfied with the overall quality standard of the livestock excrement solid fuel. The results of the combustion exhaust, the experimental values of PM10, CO, and HCl were all higher than the emission acceptance criteria in the initial, mid and post stages of boiler operation, and concentrations of As, Cd and Hg are not detected. and the concentrations of Ni, Pb, Cr, fluoride compounds, nitrogen oxides and dioxin were lower than the standard. The results of the XRF analysis show that the main components were SiO2, P2O5, CaO and K2O. P2O5 in the ash can be a source of fertilizer, so it is deemed necessary to examine the possibility through further experiments. The analysis results of odor, showed that the concentration of ammonia, methylmercaptane, sulfuric acid, dimethyldysulfide and trimethylamine was higher than the emission acceptance criteria, while the concentration of dimethylacid was lower than the emission acceptance standard.