Sökning: "manganmalm"

Hittade 2 uppsatser innehållade ordet manganmalm.

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

   Master-uppsats, KTH/Energi- och ugnsteknik

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

   Sammanfattning : 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. LÄS MER

3. 2. Vätskeinklusioner som ledtrådar till bildningsmiljön för Bölets manganmalm, Västergötland, södra Sverige

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Camilla Borgenlöv; [1997]
   Nyckelord :geografi; geologi; vätskeinklusion; Bölet; manganmalm; Västergötland; Sverige; Earth and Environmental Sciences;

   Sammanfattning : The hydrathermal manganese ores at Bölet, on the western shore of Lake Vättern, southern Sweden, occupy fractures and fissures and form the matrix in brecciated zones in a granite. Gangue minerals include barite, fluorite, quartz, calcite and some vanadinite and edingtonite (Ba-zeolite). LÄS MER