On the effect of wood processing waste on the sequestration of sulfur oxides during its combined pyrolysis with coal from the Maikuben deposit

Abstract

Experimental studies of the effect of wood biomass processing waste on the yield of anthropogenic gases during their combined pyrolysis with lignite from the Maikuben deposit, Kazakhstan, were carried out. It was previously established according to the results of experiments that thermal decomposition of a mixture of coal and wood processing waste significantly reduces the yield of sulfur and nitrogen oxides in the gaseous products of their thermal decomposition. The aim of this paper was to determine the degree of influence of the share of wood biomass waste added to the coal of the Maikuben deposit on the processes of reducing the yield of anthropogenic gases during their joint pyrolysis in a wide temperature range from 400 °C to 1000 °C. Experimental studies of the processes of joint thermal decomposition were carried out using Netzsch STA 449 F3 Jupiter unit (Netzsch, Germany). The results of the experiments justify the high efficiency of the effect of wood processing waste in the composition of mixed fuels based on coal from the Maikuben deposit as an additive that reduces the yield of sulfur oxides when burning such fuels in the furnaces of steam and hot water boilers.