Sökning: "Oxygen carriers"

Visar resultat 11 - 15 av 75 avhandlingar innehållade orden Oxygen carriers.

  1. 11. Steel converter slag as an oxygen carrier

    Författare :Fredrik Hildor; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Steel converter slag; Biomass; Oxygen carrier; LD slag; Oxygen carrier aided combustion; Chemical looping;

    Sammanfattning : Thermal conversion of fuels can be used to produce heat and power in addition to chemicals. In order to be aligned with climate targets, it is necessary that such systems do not emit carbon dioxide to the atmosphere. Carbon capture and storage (CCS) can be used together with fuel conversion systems to prevent CO2 from entering the atmosphere. LÄS MER

  3. 12. Chemical-Looping Combustion with Natural Gas Using NiO-Based Oxygen Carriers

    Författare :Carl Johan Linderholm; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chemical-looping combustion; fluidized bed; CO2 capture; nickel oxide; oxygen carrier;

    Sammanfattning : CO2 capture and storage has been proposed as an alternative to mitigate global warming. Chemical-looping combustion is an unmixed combustion concept where fuel and combustion air are kept separate by means of an oxygen carrier and the CO2 capture is inherently achieved. LÄS MER

  4. 13. Investigation of Nickel- and Iron-Based Oxygen Carriers for Chemical-Looping Combustion

    Författare :Erik Jerndal; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Carbon Dioxide Capture; Nickel Oxide; Fluidized Bed; Iron Oxide; Oxygen Carrier; Chemical-Looping Combustion; Ilmenite;

    Sammanfattning : Carbon capture and storage has the potential of reducing emissions of CO2, generated by combustion of fossil fuels. Chemical-looping combustion is a method intended to capture CO2 without an energy consuming gas separation process. LÄS MER

  5. 14. Manganese ores as oxygen carriers for chemical-looping combustion

    Författare :Sebastian Sundqvist; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical-looping with oxygen uncoupling; gaseous fuel; methane; syngas; Chemical-looping combustion; manganese ores; combined oxides; wood char and solid fuels;

    Sammanfattning : Chemical looping combustion (CLC) is a fluidized bed system that circulates metal oxide particles in order to transport oxygen from an air reactor to a fuel reactor. In the fuel reactor a fuel reduces the oxygen carrier while producing CO2 and H2O. The oxygen carrier is then transported back to the air reactor and reoxidized. LÄS MER

  7. 15. Thermal Analysis and Investigation of NiO-Based Oxygen Carriers for Chemical-Looping Combustion

    Författare :Erik Jerndal; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Oxygen Carrier; Carbon Dioxide Capture; Chemical-Looping Combustion; Nickel Oxide; Fluidized Bed; Thermodynamics;

    Sammanfattning : Capture and storage of CO2 can be used to reduce greenhouse gas emissions from combustion of fossil fuels. Chemical-looping combustion is a two-step combustion process where CO2 is obtained in a separate stream, ready for compression and storage. LÄS MER