Synthesis and characterization of novel catalytic materials using industrial slag: Influence of alkaline pretreatment, synthesis time and temperature

Ekaterina Kholkina, Narendra Kumar, Taina Ohra-aho, Juha Lehtonen, Christian Lindfors, Marcus Perula, Janne Peltonen, Jarno Salonen, Dmitry Murzin

    Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

    3 Citeringar (Scopus)

    Sammanfattning

    Industrial ferrous wastes found their application in construction. However, they are mostly stored polluting the environment. In the current work, possibility of value added products synthesis from steel slag with their further use as catalysts was investigated. Slag-based catalysts were obtained by alkaline treatment with sodium hydroxide by variation of synthesis parameters. The physico-chemical properties of the synthesized materials were determined by N2-physisorption, SEM, EDX, TEM, XRD and TPD. Slag-based catalysts were applied in the transformation of wood biomass, namely softwood sawdust. Novel catalytic materials synthesized from industrial slag exhibited the presence of strong basic sites and highly crystalline phases of SiO2, Al2O3, CaCO3, Ca(OH)2, Fe2O3, MgO and TiO2. Alkaline treatment of the raw material promoted creation of mesoporosity and an increase of the surface area. Catalytic fast pyrolysis of pine sawdust displayed variations in the yields of the reaction products in the presence of catalysts as compared to thermal fast pyrolysis.

    OriginalspråkOdefinierat/okänt
    Sidor (från-till)738–751
    TidskriftTopics in Catalysis
    Volym62
    Utgåva7-11
    DOI
    StatusPublicerad - 2019
    MoE-publikationstypA1 Tidskriftsartikel-refererad

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