VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Enhanced sorption biomass gasification for hydrogen and biomethane production = Izboljšano sorpcijsko uplinjanje biomase za proizvodnjo vodika in biometana : master's thesis of the 2nd cycle master's study programme in Mechanical Engineering
    Žalec, Domen
    This work deals with development of a conceptual process system for enhanced sorption biomass (BM) gasification. Aspen Plus% process simulation tool was used to develop an adjustable process model ... for production of either hydrogen or biomethane. This was achieved by integration of calcium looping process with gasification process into a single system for in-situ CO2 removal. The process is based on steam blown dual fluidised bed reactor, operating at low pressures and low-medium temperatures. By control of process' operating parameters the produced syngas was optimised for maximum H2 content or for stoichiometric H2/CO2 ratio for downstream Sabatier methanation process. Simulations were performed and a parametric study was conducted to assess the system's performance. H2 production yielded syngas with up to 96,8 mol. % H2 content and overall process efficiency of 67,3 %LHV. Biomethane production achieved up to 95,3 mol. % CH4 content with 79,0 %LHV process efficiency. 0,112 kg H2/kg BM and 0,23 kg CH4/kg BM product yields were recorded for hydrogen and biomethane production, respectively. The proposed process designs were found to be on par or superior to experimental and pilot plant results available from the literature. Moreover, a few extra percent points in efficiency increase were found to be possible during the sensitivity analysis. The proposed sorption enhanced concept for biomass gasification provides gaseous fuels with low-sulphur content and negative carbon footprint. The main advantage of the proposed system, compared to alternative process designs, is ability to operate in two modes for different product gases.
    Vrsta gradiva - magistrsko delo ; neleposlovje za odrasle
    Založništvo in izdelava - Ljubljana : [D. Žalec], 2019
    Jezik - angleški
    COBISS.SI-ID - 16866075

    Povezava(-e):

    Repozitorij Univerze v Ljubljani – RUL

Knjižnica/institucija Kraj Akronim Za izposojo Druga zaloga
Fakulteta za strojništvo, Ljubljana Ljubljana FSLJ v čitalnico 1 izv.
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