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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pyrolysis of Wood Biomass to Obtain Biochar and Its Subsequent Application
The contribution characterizes the employed biochar (a product of low temperature pyrolysis of wooden biomass), which has demonstrated excellent sorption effects, by means of examination of its surface (SEM, BET) and by identification of its functional groups and its thermal stability (DSC, TGA). For the purposes of this contribution we modified the input materials (by using joint oxidation with various oxidizing agents and different weight ratios of biochar and graphite). On the contrary, a part of the products was reduced with the objective to obtain a material similar to a graphene molecule via reduced graphene oxide (rGO). The prepared modified samples were further tested to verify adsorption properties of biochar: the tests were performed on samples of wastewater from Slovnaft a.s. (petrochemical industry) and the results were compared with active coal for chromatography, the sorption properties of which are similar to biochar. Sulfur mustard (yperite HD) breakthrough time was also measured for the powder form. Products with a biochar layer between micro- and nano-textiles in various combinations were tested for permeation of aerosol, paraffin oil and sulfur mustard (yperite).
Pyrolysis of Wood Biomass to Obtain Biochar and Its Subsequent Application
The contribution characterizes the employed biochar (a product of low temperature pyrolysis of wooden biomass), which has demonstrated excellent sorption effects, by means of examination of its surface (SEM, BET) and by identification of its functional groups and its thermal stability (DSC, TGA). For the purposes of this contribution we modified the input materials (by using joint oxidation with various oxidizing agents and different weight ratios of biochar and graphite). On the contrary, a part of the products was reduced with the objective to obtain a material similar to a graphene molecule via reduced graphene oxide (rGO). The prepared modified samples were further tested to verify adsorption properties of biochar: the tests were performed on samples of wastewater from Slovnaft a.s. (petrochemical industry) and the results were compared with active coal for chromatography, the sorption properties of which are similar to biochar. Sulfur mustard (yperite HD) breakthrough time was also measured for the powder form. Products with a biochar layer between micro- and nano-textiles in various combinations were tested for permeation of aerosol, paraffin oil and sulfur mustard (yperite).
Pyrolysis of Wood Biomass to Obtain Biochar and Its Subsequent Application
Makovicka Osvaldova, Linda (Herausgeber:in) / Markert, Frank (Herausgeber:in) / Zelinka, Samuel L. (Herausgeber:in) / Roupcova, Petra (Autor:in) / Klouda, Karel (Autor:in) / Slivkova, Simona (Autor:in)
International Scientific Conference on Woods & Fire Safety ; 2020 ; Štrbské Pleso, Slovakia
Wood & Fire Safety ; Kapitel: 60 ; 410-419
15.03.2020
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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