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Wyszukujesz frazę "gliding discharge" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Nickel catalyst in coupled plasma-catalytic system for tar removal
    Autorzy:
    Woroszył-Wojno, Joanna
    Młotek, Michał
    Ulejczyk, Bogdan
    Krawczyk, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/1849320.pdf
    Data publikacji:
    2021
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    gliding discharge
    plasma-catalytic system
    tar decomposition
    nickel catalyst
    Opis:
    Tar formation is a significant issue during biomass gasification. Catalytic removal of tars with the use of nickel cata-lyst allows to obtain high conversion rate but coke formation on catalysts surface lead to its deactivation. Toluene decomposition as a tar imitator was studied in gliding discharge plasma-catalytic system with the use of 5%, 10% and 15% by weight Ni and NiO catalyst on Al2O3 (α-Al2O3) and Peshiney (γ-Al2O3) carrier in gas composition similar to the gas after biomass pyrolysis. The optimal concentration of nickel was identified to be 10% by weight on Al2O3. It was stable in all studiedinitial toluene concentrations, discharge power while C7H8 conversion rate remained high – up to 82%. During the process, nickel catalysts were deactivated by sooth formation on the surface. On catalysts surface, toluene decomposition products were identified including benzyl alcohol and 3-hexen-2-one.
    Źródło:
    Polish Journal of Chemical Technology; 2021, 23, 3; 24-29
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Purification of the gas after pyrolysis in coupled plasma-catalytic system
    Autorzy:
    Młotek, M.
    Ulejczyk, B.
    Woroszył, J.
    Walerczak, I.
    Krawczyk, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/778313.pdf
    Data publikacji:
    2017
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    gliding discharge
    non-equilibrium plasma
    plasma-catalytic system
    tar decompositio
    Opis:
    Gliding discharge and coupled plasma-catalytic system were used for toluene conversion in a gas composition such as the one obtained during pyrolysis of biomass. The chosen catalyst was G-0117, which is an industrial catalyst for methane conversion manufactured by INS Pulawy (Poland). The effects of discharge power, initial concentration of toluene, gas flow rate and the presence of the bed of the G-0117 catalyst on the conversion of C7 H8 , a model tars compounds were investigated. Conversion of coluene increases with discharge power and the highest one was noted in the coupled plasma-catalytic system. It was higher than that in the homogeneous system of gliding discharge. When applying a reactor with reduced G-0117 and CO (0.15 mol%), CO2  (0.15 mol%), H2  (0.30 mol%), N2  (0.40 mol%), 4000 ppm of toluene and gas flow rate of 1.5 Nm3 /h, the conversion of toluene was higher than 99%. In the coupled plasma-catalytic system with G-0117 methanation of carbon oxides was observed.
    Źródło:
    Polish Journal of Chemical Technology; 2017, 19, 4; 94-98
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Surface modifications of biomaterial with different cold plasma reactors to improve cell adhesion
    Autorzy:
    Terebun, Piotr
    Kwiatkowski, Michał
    Zarzeczny, Dawid
    Pawłat, Joanna
    Wójcik, Michał
    Trzaskowska, Marta
    Kazimierczak, Paulina
    Przekora, Agata
    Powiązania:
    https://bibliotekanauki.pl/articles/2172008.pdf
    Data publikacji:
    2022
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    curdlan
    agarose
    gliding arc discharge reactor
    dielectric barrier discharge plasma jet
    dielectric barrier discharge surface reactor
    surface modification
    Opis:
    There is a growing trend in the engineering of biomaterials, focusing on surface modifications of biomaterials to improve their mechanical strength, corrosion resistance, and biological properties. Cold plasma treatment may improve biological properties of biomaterials for biomedical applications by enhancing their integration with host tissue. This study investigated the influence of different cold plasma treatments on the surface properties of a polysaccharides- -based biomaterial to improve cell adhesion to its surface. The samples were subjected to plasma treatment using three different reactors operating at atmospheric pressure: gliding arc discharge (GAD) reactor, dielectric barrier discharge (DBD) plasma jet, and DBD surface reactor. Next, surface chemistry of the biomaterial after plasma treatment was determined by ATR-FTIR analysis. Furthermore, a cell adhesion assay on the samples was carried out using normal human skin fibroblasts (BJ cell line). The attenuated total reflection Fourier transform infrared analysis (ATR- -FTIR) showed that new potential functional groups could be formed on the material surface after plasma treatment. However, plasma treatment of the samples did not enhance cell adhesion to the surface of the polysaccharides-based biomaterial. Thus, the obtained results indicate that plasma treatment using GAD reactor, DBD plasma jet, and DBD surface reactor was not effective for surface modification and cell responses.
    Źródło:
    Engineering of Biomaterials; 2022, 25, 165; 2--6
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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