Sökning: "Chemical oxygen demand"

Visar resultat 1 - 5 av 68 avhandlingar innehållade orden Chemical oxygen demand.

  1. 1. Design and Operation of a 10 kWth Chemical-Looping Combustor for Solid Fuels

    Författare :Nicolas Berguerand; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solid Fuel Conversion; Chemical-Looping Combustion; Oxygen Carrier; Ilmenite; Carbon Dioxide Capture; Oxygen Transfer; Gas Conversion; Oxygen Demand;

    Sammanfattning : Chemical-looping combustion (CLC) is a new fuel conversion technology with inherent CO2 capture. In this process, the fuel and the combustion air are never mixed and the oxygen is transferred to the fuel via an oxygen carrier in the form of a metal oxide circulating between two reactors, e.g. LÄS MER

  3. 2. Design and Operation of a 10 kWth Chemical-Looping Combustor for Solid Fuels

    Författare :Nicolas Berguerand; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Interconnected Fluidized Beds; Oxygen Carrier; Chemical-Looping Combustion; Carbon Dioxide Capture; Solid Fuel Conversion;

    Sammanfattning : The use of a 10 kWth chemical-looping combustor for solid fuels was investigated. The unit was designed, dimensioned and built and two types of fuel were tested: a South African coal and a petroleum coke from Mexico. Chemical-looping combustion is an alternative to normal combustion for CO2 capture. LÄS MER

  4. 3. Catalytic Upgrading of Waste Oils to Advanced Biofuels – Deactivation and Kinetic Modelling Study

    Författare :Prakhar Arora; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Stearic acid; TEM; Advanced biofuels; NiMo; Catalytic HDO; MoS2; Kinetic modelling; Oleic acid; Hydrodeoxygenation;

    Sammanfattning : The demand for liquid hydrocarbons as transportation fuels is enormous and ever growing. Advanced biofuels is one of the promising solutions to keep pace with the global transition to cleaner energy by reducing greenhouse gas emissions from the transport sector. LÄS MER

  5. 4. Studies on Rechargeable Fe-air electrodes in Alkaline electrolyte

    Författare :Alagar Raj Paulraj; Yohannes Kiros; Carlos Ponce de León Albarrán; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Fe-air battery; Cu Sn-doped nanostructured iron electrodes; Alkaline electrolytes; Bi-functional OER ORR catalyst; perovskite spinel catalyst; NiFeOx; air electrode; Chemical Engineering; Kemiteknik;

    Sammanfattning : Energy storage system is an important component in the energy system based on variable renewable energy sources into the grid. Energy storage system could contribute to decarbonization, energy security, offset the demand and supply of the electricity sector, especially for the electric grid. LÄS MER

  7. 5. Chemical-Looping Combustion with Solid Fuels

    Författare :Henrik Leion; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; petroleum coke; fluidized bed; oxygen carrier; ilmenite; volatiles; gasification; sulphur dioxide; coal; iron oxide; chemical looping combustion; CLC;

    Sammanfattning : In order to meet the global demand of CO2 neutral energy production, chemical-looping combustion could play an important role. With this technique it is possible to capture CO2 without an excessive energy penalty. LÄS MER