Search for dissertations about: "N2O"

Showing result 1 - 5 of 73 swedish dissertations containing the word N2O.

  1. 1. Reduction of the N2O Emission from Fluidized Bed Combustion by Afterburning

    Author : Lennart Gustavsson; Chalmers University of Technology; []
    Keywords : chemical modelling; fuel injection; nitrous oxide; fluidized bed combustion; fluidized beds; afterburning; homogeneous heterogeneous reactions; N2O reduction; fluidized bed boiler; N2O emissions;

    Abstract : A method for reducing N2O emissions from fluidized bed combustion is presented and investigated. In contrast to flame combustion, fluidized bed combustion generates significant amounts of nitrous oxide (N2O) which are emitted to the atmosphere. READ MORE

  2. 2. NOx and N₂O emissions from a pressurized bench-scale fluidized bed reactor

    Author : Eva-Lena Ivarsson; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bench-scale; nitrous oxide; N2O; fluidized bed; Nox; nitrogen oxides; pressurized combustion;

    Abstract : .... READ MORE

  3. 3. NH3-SCR chemistry for NOx abatement: Influence of zeolite support on N2O formation & phosphorus species addition

    Author : Joonsoo Han; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Copper; NH3 SCR chemistry; Zeolite topology; N2O; Phosphorus poisoning;

    Abstract : Different lattice arrangements of Si, Al, and O atoms result in a variety of pore dimensions and zeolite channel network systems, giving rise to different physicochemical environments inside the catalyst cage. The objective of the thesis work was to understand the influence of zeolite topology on NH3-assisted SCR chemistry over CHA, MFI, and BEA frameworks, on the formation of N2O and the addition of phosphorus species to attain fundamental insight into NOx emission control. READ MORE

  4. 4. Land use effects on nitrous oxide emission from drained organic soils

    Author : Per Weslien; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : Greenhouse gas emissions; N2O; Peat soils; Land use;

    Abstract : Since industrialisation, the atmospheric concentration of greenhouse gases (GHG) has increased significantly. The most important anthropogenic GHGs are carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). N2O is of major concern for two reasons; i) it is a potent GHG responsible for 6. READ MORE

  5. 5. Effects of forest management on greenhouse gas fluxes in a boreal forest

    Author : Patrik Vestin; Institutionen för naturgeografi och ekosystemvetenskap; []
    Keywords : Forest management; Greenhouse gas fluxes; Clear-cutting; Thinning; Stump harvesting; Selective cutting; Eddy-covariance; Flux-gradient; Greenhouse gas budgets; CO2; CH4; N2O;

    Abstract : Forest ecosystems cover 31% of the terrestrial land area and store large amounts of carbon in biomass and in soils. The 2015 Paris Agreement recognizes the importance of sinks and reservoirs of greenhouse gases (GHGs) in forests and the importance of enhancing them through sustainable forest management policies. READ MORE