Lab-Scale Investigations During Combustion of Agricultural Residues and Selected Polish Coals

Abstract

Preliminary lab-scale investigations were conducted on slagging abatement in biomass-firing by fuel mixing. Three agriculture biomass fuels and olive cake were used in the experiments. Polish lignites and bituminous coals were examined as anti-sintering additives. The effects of chlorine release, potassium retention and ash sintering were examined by heating samples of biomass fuels and additives in the muffle oven and, next, firing them in the laboratory down-fired furnace at the temperature in the range of 800-1150ºC. The obtained slag samples were analysed on: chlorine and potassium content, sintering tendency and crystalline components. Among the examined coals lignite from Turów mine and bituminous coal from Bolesław Śmiały mine appeared to be the most effective in potassium retention in aluminosilicate and chlorine release from slag. Possibly the major factor of these coals which reduced ash sintering was relatively high content of kaolinite

Evaluation of the use of lignite of Turkeys’ with biomass as Agricultural waste as fuel in terms of emissions

“…W. K. Kordylewski et al have researched slag reduction by mixing Polish lignite and bituminous coal with biomass as laboratory-scale preliminary. Three agricultural biomass fuels (cereal straw sunflower husk, rape straw) and olive cake were used in the experiments [5]. T. Madhiyanon et al have investigated the Combustion properties of rice husk in combination with bituminous coal, emissions of fuel mixtures, and combustion efficiency were investigated together with the 120 kWth cyclone fluidized-bed combustor [6].…”

Determination of High Temperature Corrosion Rates of Steam Boiler Evaporators Using Continuous Measurements of Flue Gas Composition and Neural Networks

“…The main key factors in low oxygen corrosion in pulverized fired utility boilers are the sulphur, chlorine, phosphor, alkaline salt, and halide contents in fuel, which are directly responsible for corrosion in highly substoichiometric regions. Theoretically, corrosion may be at least partially avoided by an adequate selection of fuels or even the mixing of fuels [4,5]. This, however, is only one of the parameters of fuel selection, among others like e.g.…”