Search for dissertations about: "biogas upgrading"

Showing result 1 - 5 of 13 swedish dissertations containing the words biogas upgrading.

  1. 1. Industrial Bioprocess Developments for Biogas and Ethanol Production

    University dissertation from Borås : Högskolan i Borås

    Author : Karthik Rajendran; Högskolan i Borås.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biogas; ethanol; process design; techno-economic analysis; simulation; modeling; Resource Recovery; Resursåtervinning;

    Abstract : Current biofuels face a noteworthy misfortune on commercialization because of its economiccomparison with low-cost fuel from the oil reserves. To compete with gasoline as a fuel, thebiofuels need to be economically feasible and demonstrated on a large-scale. READ MORE

  2. 2. Narrow-pore zeolites and zeolite-like adsorbents for CO2 separation

    University dissertation from Stockholm : Department of Materials and Environmental Chemistry (MMK), Stockholm University

    Author : Ocean Cheung; Stockholms universitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; CO2 separation; zeolites; phosphates; titanium silicates; ion exchange; flue gas CO2 capture; biogas upgrading; materialkemi; Materials Chemistry;

    Abstract : A range of porous solid adsorbents were synthesised and their ability to separate and capture carbon dioxide (CO2) from gas mixtures was examined. CO2 separation from flue gas – a type of exhaust gas from fossil fuel combustion that consists of CO2 mixed with mainly nitrogen and biogas (consists of CO2 mixed with mainly methane) were explicitly considered. READ MORE

  3. 3. The Technology and Economy of Farm-Scale, High-Solids Anaerobic Digestion of Plant Biomass

    University dissertation from Department of Biotechnology, Lund University

    Author : Mattias Svensson; Lunds universitet.; Lund University.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bioteknik; farm-scale; farmhouse construction; Lantbruksteknik; Biotechnology; agricultural machines; kontroll av utsläpp; Agricultural engineering; Miljöteknik; pollution control; Environmental technology; Lantbruksekonomi; straw bed priming; stratified bed digesters; nitrogen recycling; greenhouse gases; Sweden; Agricultural economics; sequential single-stage fed-batch; ley crops; sustainability; wheat straw; sugar beet tops; crop residues; high-solids; economy; Anaerobic digestion; biogas upgrading;

    Abstract : Anaerobic digestion is a microbially mediated process occurring in nature in the absence of oxygen and other non-carbonaceous electron acceptors. The majority of the carbon of the organic matter degraded in the process is transformed into carbon dioxide and methane. READ MORE

  4. 4. Energy Efficient Processes for the Production of Gaseous Biofuels - Reforming and Gas Upgrading

    University dissertation from Department of Chemical Engineering, Lund University

    Author : Helena Svensson; Lunds universitet.; Lund University.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reverse-flow reforming; Biofuels; Gas upgrading; Amine absorption;

    Abstract : Replacing fossil fuels with biofuels is one way of reducing the emission of greenhouse gases into the atmosphere, thus decreasing our impact on the global climate. For this to be a viable option, several production routes are needed, as no single option can fully replace fossil fuels. READ MORE

  5. 5. An in-situ ATR-FTIR Spectroscopy Study of Adsorption in MFI Zeolites A step towards effective upgrading of biofuels

    University dissertation from Luleå tekniska universitet

    Author : Lindsay Ohlin; Luleå tekniska universitet.; [2015]
    Keywords : Chemical Technology; Kemisk teknologi;

    Abstract : Global warming is believed to be caused by the extensive emission of greenhouse gases, for example carbon dioxide, into the atmosphere by combustion of fossil fuels, such as coal, oil and natural gas. To reduce the emission of carbon dioxide and hence avoid global warming, alternative fuels derived from renewable resources are desired. READ MORE