Sökning: "biofuels"

Visar resultat 1 - 5 av 195 avhandlingar innehållade ordet biofuels.

  1. 1. Characterisation of Fuels and Fly Ashes from Co-Combustion of Biofuels and Waste Fuels in a Fluidised Bed Boiler. A Phosphorus and Alkali Perspective

    Detta är en avhandling från Göteborg : Chalmers tekniska högskola

    Författare :Anita Pettersson; Högskolan i Borås.; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; fluidised bed combustion; co-combustion; biofuels; refuse derived fuels; municipal sewage sludge; phosphorus recovery; Energi och material; olivine; Biofuels; zeolites; fertiliser; extraction; kaolin; alkali; sulphur; ash;

    Sammanfattning : In the efforts to create sustainable production of heat and power and to reduce the net CO2 emissions to the atmosphere, alternative fuels are today being utilised. These fuels are, for example, biofuels and waste derived fuels such as different residues from the agricultural sector and the pulp and paper industry, municipal sewage sludge and municipal sorted solid waste. LÄS MER

  2. 2. Biofuels from Kraft Black Liquor Pilot-Scale Gasification Development and Techno-Economic Evaluation of Industrially Relevant Biofuel Production Pathways

    Detta är en avhandling från Luleå University of Technology

    Författare :Yawer Jafri; Luleå tekniska universitet.; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biofuels; black liquor; pyrolysis oil; gasification; drop-in; energy systems; techno-economic; Energiteknik; Energy Engineering;

    Sammanfattning : Fuel combustion for transport was responsible for 24% of EU-28 greenhouse gas (GHG) emissions in 2016. Member states are expected to ensure that the share of renewable energy in the transport sector is at least 14% by 2030. Some countries, such as Sweden, have more ambitious targets. LÄS MER

  3. 3. Biochemical conversion of biomass to biofuels pretreatment–detoxification–hydrolysis–fermentation

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Venkata Prabhakar Soudham; Umeå universitet.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lignocellulosic materials; Ionic liquids; Pretreatment; Inhibitors; Detoxification; Ferrous sulfate and hydrogen peroxide; reducing agents; alkaline treatments; Hydrolysis; Fermentation; Biofuels; biokemi; Biochemistry;

    Sammanfattning : The use of lignocellulosic materials to replace fossil resources for the industrial production of fuels, chemicals, and materials is increasing. The carbohydrate composition of lignocellulose (i.e. cellulose and hemicellulose) is an abundant source of sugars. LÄS MER

  4. 4. Benefits of Integrated Upgrading of Biofuels in Biorefineries - Systems Analysis

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Eva Ingeborg Elisabeth Andersson; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hydrogen; systems analysis; biorefinery; process integration; CO2 emissions; biofuels;

    Sammanfattning : As a result of increasing concerns about climate change, there is considerable current interest in increasing use of CO2-neutral biofuel in the energy system. Increased use of biomass fuel requires that it be upgraded in order to facilitate transportation and distribution to end-users. LÄS MER

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

    Detta är en avhandling från Department of Chemical Engineering, Lund University

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

    Sammanfattning : 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. LÄS MER