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	Production and characterization of high-temperature biochar. Sedmihradská, Anežka ; Skoblia, S. ; Beňo, Z. ; Moško, Jaroslav ; Pohořelý, Michael Thermochemical conversion of biomass produces solid residue that is further used in agriculture called biochar. Studied biochar was produced in twin-fire two-staged gasifier from waste wood biomass. Heat and electricity were produced together with biochar. Biochar samples were analysed and assessed as a soil amendment. Results were compared to legal standards and voluntary certificate limits. It was concluded that studied biochar meet all criteria for utilization as a soil amendment. Plný tet: PDF Detailed record
	Influence of sorbent type on dehalogenation of reducing gas without condensing fraction. Šrámek, Vít ; Skoblia, S. ; Staf, M. ; Beňo, Z. ; Pohořelý, Michael Chemical recycling of plastics is one of possible option to process large amount of currently difficultly recycled plastic waste. It would be possible to fulfil goals of the amount of recycled waste by means of chemical recycling. Principle of chemical recycling is conversion of plastic waste to basic hydrocarbon substance that could be used in refineries or petrochemical industry. The main technological challenge is the presence of halogens in plastic waste (in plastics as substances containing chlorine in form of PVC or brome in form of additives/flame retardants). During chemical recycling via pyrolysis, these substances can transfer to products and cause problems in succeeding technologies (corrosion, poisoning of catalysts etc.). One of the solutions how to eliminate these unwanted substances could be high temperature sorption of primal pyrolysis gas on sorbents before its condensation. Experiments with model gas containing halogenated compounds and different inorganic sorbents were conducted for this purpose. Gained results allowed us to narrow down the amount of sorbents suitable for high temperature removal of halogenated compounds from primal pyrolysis gas produced during pyrolysis of plastics. Plný tet: PDF Detailed record
	Experimental methodology for studying the behaviour of perfluoroalkyl compounds during sewage sludge pyrolysis Hušek, Matěj ; Skoblia, S. ; Moško, Jaroslav ; Beňo, Z. ; Semerád, Jaroslav ; Cajthaml, Tomáš ; Pohořelý, Michael One of the waste management options of stabilised sewage sludge is its treatment by pyrolysis. Pyrolysis units are suitable for sewage sludge treatment with low-heavy metal content, but their suitability for various organic pollutants removal contained in sludge is under investigation. In this paper, we discuss the issue of per- and polyfluoroalkyl substances (PFASs) (organic pollutants) in sewage sludge and the development of a methodology for the experimental determination of PFASs behaviour during sewage sludge pyrolysis in order to determine practical pyrolysis conditions for the treatment of sewage sludge containing PFASs.\n\n Plný tet: PDF Detailed record

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