Essays about: "Oxygen carriers."

Showing result 11 - 14 of 14 essays containing the words Oxygen carriers..

  1. 11. Investigation of the combustion behavior in a fluidized reactor with oxygen carriers as bed material

    University essay from KTH/Energi- och ugnsteknik

    Author : Carl Kajnäs; [2016]
    Keywords : Bed materials; Fluidized bed combustion; Gaseous fuels; Oxygen carrier aided combustion; Oxygen carriers.;

    Abstract : The behavior of using oxygen carriers as bed material in a fluidized bed combustion was investigated in this work when methane, air and carbon monoxide, air are used as fluidizing gases. More specifically, conversion rate, unsteadiness and gas composition was investigated and it was found that the conversion rate of carbon monoxide and methane are higher when oxygen carriers are used as bed material compared to silica sand and that the highest conversion rate was for oxygen carriers with high oxygen transport capacity and high reactivity towards the gaseous fuel. READ MORE

  3. 12. Nitrous oxide emissions from deammonification process under different operation conditions.

    University essay from KTH/Mark- och vattenteknik

    Author : Agnieszka Mazurek; [2015]
    Keywords : Anammox; Deammonification; Kaldnes; MBBR; Nitrous oxide;

    Abstract : Wastewater treatment plays significant role in the environmental protection. The process has direct impact on quality of air and water. All treated sewage reaches fresh water reservoirs as well as gasses escaping from the process are emitted to the atmosphere. READ MORE

  4. 13. Geochemical and palaeomagnetic characteristics of a Swedish Holocene sediment sequence from Lake Storsjön, Jämtland

    University essay from Lunds universitet/Geologiska institutionen

    Author : Joakim Robygd; [2015]
    Keywords : Jämtland; geochemistry; palaeomagnetism; PSV; sedimentation rate; Holocene development; geochronology; climate change; Earth and Environmental Sciences;

    Abstract : As a part of a French-Swedish collaboration project to reconstruct middle to northern European climate variations during the Holocene, a sediment sequence from Lake Storsjön, Jämtland was retrieved and analysed for geochemical and palaeomagnetic properties. The subsampled sequence, composed of one freeze core and three Niederreiter piston cores, revealed information of both climatic, environmental and anthropogenic changes over the past 10,800 years. READ MORE

  5. 14. Effects of electron beam irradiation on the electrical properties of III-V semiconductor nanowires

    University essay from Lunds universitet/Fysiska institutionen

    Author : Sobhan Sepehri; [2013]
    Keywords : Nanowires; electrical transport; electron beam irradiation; carrier modulation; Physics and Astronomy;

    Abstract : Scanning electron microscopy is widely used in nanowire device fabrication. In spite of the attractive high resolution that scanning electron microscopy provides, it influences the electrical properties of III-V nanowires. READ MORE