Sökning: "wheat straw pretreatment"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden wheat straw pretreatment.

  1. 1. Anaerobic Co-digestion of steam pretreated wheat straw and sewage sludge

    Master-uppsats, Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

    Författare :Virginia Tosi; [2021]
    Nyckelord :Anaerobic co-digestion; wheat straw pretreatment; nutrients availability; OLR; VFA acumulation; Biotechnology; Technology and Engineering;

    Sammanfattning : Anaerobic digestion (AD) of wastes and residues is a widely applied and explored process. However, when the process is not optimized, inadequate concentrations of nutrients and inhibitory compounds are common and can lead to low maximum organic loading rates and increased risk of process problems, low organic dry solids degradation rate and reduced methane yields. LÄS MER

  3. 2. Alkaline wet oxidation of biorefinery lignin from wheat straw

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Maja Lindblad; [2021]
    Nyckelord :alkaline wet oxidation; lignin oxidation; wheat straw; chemical pretreatment; biorefinery lignin; anaerobic digestion; response surface-modelling; chemical engineering; Technology and Engineering;

    Sammanfattning : Climate change and depletion of fossil resources have generated a need for energy production based on renewable resources such as lignocellulosic biomass. Agricultural residues, like wheat straw, is lignocellulosic biomass that could contribute to the energy supply if it was used for biogas production. LÄS MER

  4. 3. Production of bioethanol from wheat straw hydrolysate using reverse membrane bioreactor (rMBR)

    Uppsats för yrkesexamina på grundnivå, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Jessica Khin San; [2018]
    Nyckelord :Reverse membrane bioreactor; wheat straw; fermentation; ethanol; furfural; diffusion rate;

    Sammanfattning : The second-generation bioethanol production in which lignocellulosic material is used as feedstock faces some difficulties. Lignocellulosic materials have to be pretreated prior to fermentation. LÄS MER

  5. 4. Development of characterization methods for lignocellulosic biogas substrates

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Mirjam Victorin; [2016]
    Nyckelord :characterization methods; anaerobic digestion; straw; Biogas; lignocellulose; BMP; mechanical pretreatment; chemical engineering; kemiteknik; Technology and Engineering;

    Sammanfattning : As the need of environmentally friendly alternatives to fossil fuels is growing bigger, so is the need for knowledge and research around possible new raw materials that could serve that pur-pose. One discussed product is biogas. LÄS MER

  7. 5. Combined production of bioethanol and biogas from wheat straw

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Victor Gustafson; [2015]
    Nyckelord :lactic acid; chemical engineering; biogas; enzymes; enzymatic hydrolysis; energy recovery; ethanol red; bioethanol; wheat straw; steam pretreatment; inhibitors; kemiteknik; Technology and Engineering;

    Sammanfattning : Currently the production cost of lignocellulosic ethanol is considered to be relatively high. Large fractions of the production cost come from the raw material and the energy consumed in the distillation. Therefore it is desirable to have a process that yields high concentration of ethanol and maximizes the utilization of the biomass. LÄS MER