Sökning: "biogas production"

Visar resultat 36 - 40 av 529 uppsatser innehållade orden biogas production.

  1. 36. Techno economic assessment of CCUS for a biogas facility in Sweden : Evaluating the economic feasibility for three CCUS concepts

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Tobias Johansson; Markus Knutsson; [2022]
    Nyckelord :CCS; CCU; CCUS; Biogas; Biologic methanation; Negative emissions; TEA; Techno economic assessment.;

    Sammanfattning : Many countries strengthen their commitments to reduce greenhouse gas emissions to limit climate change and meet the Paris Agreement (Masson-Delmotte et al., 2019). Commitments include achieving net-zero emissions or in some cases even negative emissions (Government offices of Sweden, 2020a; United Nations, 2021a). LÄS MER

  3. 37. Combining GHG Emissions and Soil Carbon Changes as a Single Metric to Evaluate Agricultural Policy Promoting Biomass for Biofuels

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning; Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Författare :Malin Lane; [2022]
    Nyckelord :Gräsvallar; klimatpåverkan; kolinlagring; jordbruk; biomassa; biobränslen.; Earth and Environmental Sciences;

    Sammanfattning : Incorporating a multi-year grass ley into an arable crop rotation can increase soil organic carbon stocks, reduce carbon emissions and provide feedstock for biogas. This thesis set out to study how a policy promoting agricultural biomass for biogas impacts GHG emissions and carbon sequestration on a regional level over a temporal scale of 20 years. LÄS MER

  4. 38. Optimization of a two-step anaerobic treatment of wastewater from the Pulp and Paper Industry

    Master-uppsats, KTH/Industriell bioteknologi

    Författare :Sara Bard; [2022]
    Nyckelord :Wastewater treatment; biogas; methane; pulp and paper mill wastewater; wood raw material; anaerobic treatment; sulphate reduction; UAPB reactor; Vattenrening; biogas; metan; processvatten från pappers- och massaindustrin; träråvara; anaerob rening; sulfatreduktion; UAPB reaktor;

    Sammanfattning : Under de senaste 30 åren så har antalet massa- och pappersbruk minskat medan den totala produktionen av massa och papper har ökat. En högre produktion per bruk tillsammans med en hårdare miljölagstiftning, sätter ett högre tryck på vattenreningen på varje bruk. LÄS MER

  5. 39. Modellering och ekonomisk analys för att undersöka implementering av batteri- och vätgaslager vid en biogasanläggning

    Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Tor Thomsson; [2022]
    Nyckelord :energy system; battery storage; hydrogen; economic analysis; battery; hydrogen storage; electrolyzer; energisystem; batterilager; vätgas; ekonomisk analys; batteri; vätgaslager; elektrolysör;

    Sammanfattning : The interest in hydrogen as an energy carrier is growing. The whole world is investing in development of the technology surrounding hydrogen. In general the research regarding hydrogen focuses on hydrogen as an energy carrier, either for transportation as fuel or for storage and usage at a more profitable time or in times of need. LÄS MER

  7. 40. Increase of biogas production by incorporating residual streams from agriculture

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Stephanie Fjäll; [2022]
    Nyckelord :Anaerobic digestion; Agricultural residue; Lignocellulosic biomass; Mechanical pretreatment; Biogas production; Biorefinery; Chemical engineering; Agriculture and Food Sciences; Technology and Engineering;

    Sammanfattning : To expand the biogas production in Region Västra Götaland (RVG), residual streams from the agricultural sector can function as a large-scale supplier of biomass. The production of biogas decreases the dependence of fossil fuels and the digestate that is formed can also be returned to the agricultural sector, creating a closed loop. LÄS MER