Ashes from co-combustion of coal and biomass: New industrial wastes

The Physicochemical Properties and Composition of Biomass Ash and Evaluating Directions of its Applications

“…Suspensions of 0.5 g of biomass ash were put into contact with 50 mL of 0.1 M NaNO 3 solutions with different pH values (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14), adjusted with HNO 3 and NaOH. The suspensions were agitated for 8 h in a shaker at 350 rpm until an equilibrium pH value was reached.…”

Mineralogy, chemical composition and leachability of ash from biomass combustion and biomass–coal co-combustion

“…The concentration of volatile elements increases in fly ash with decreases in the temperature of fly ash collection from the flue gas and increased fly ash surface area (Mardon et al 2008). Co-combustion of biomass with coal can result in the production of fly ash differing from the fly ash obtained from coal combustion by a higher content of soluble fraction, higher content of unburned coaly matter, and higher content of fine particles different in composition when compared with coal-fired power plant (Johansson et al 2003;Jiménez et al 2005;Zheng et al 2007;Kalembkiewicz, Chmielarz 2012;Nzihou, Stanmore 2013). On the other hand, it is often considered that during the combustion of coal-biomass blends with less than 20% biomass, aluminosilicates dominate in the ash (Degereji et al 2013).…”

Results of fly ash quality for disposal options from high thermal shares up to pure biomass combustion in a pilot-scale and large scale pulverized fuel power plants

“…Biomass is considered to be the most promising source of renewable energy regarding the use of alternatives to using fossil fuels, with all countries having a trend of increasing their share of biomass in the process of industrial combustion. A reported goal of EU regulations is 14% of biomass in the process of coal combustion by the year of 2020 [8]. Biomass generally belongs to one of the six categories: woody and woody biomass, herbaceous and agricultural biomass, aquatic biomass, animal and human biomass wastes, contaminated biomass and industrial biomass wastes (semibiomass), and biomass mixture [9].…”