Sökning: "chlorine dioxide"

Visar resultat 16 - 20 av 21 avhandlingar innehållade orden chlorine dioxide.

  1. 16. Quantitative laser diagnostics of gas-phase potassium species in biomass combustion and gasification

    Författare :Emil Thorin; Florian Schmidt; Markus Broström; Zhongshan Li; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermochemical conversion; pyrolysis; phosphorus; single pellet; entrained-flow; in situ; spectroscopy; photofragmentation; imaging; numerical modelling; fysik; Physics;

    Sammanfattning : Thermochemical energy conversion processes, such as combustion and gasification, are applied worldwide for generation of electricity, heat and synthesis of chemicals. Today, these processes are mostly run on non-renewable, fossil fuels and constitute a major source of carbon dioxide emissions. LÄS MER

  3. 17. Nanoscaled Structures of Chlorate Producing Electrodes

    Författare :Christine Hummelgård; Håkan Olin; Joakim Bäckström; Svein Sunde; Mittuniversitetet; []
    Nyckelord :;

    Sammanfattning : Sodium chlorate is mainly used for production of chlorine dioxide (a pulp bleaching agent). Sodium chlorate is produced by an electrochemical process where chloride ions (from sodium chloride dissolved in water) are oxidized to chlorine on the anodes and hydrogen is evolved on the cathodes. LÄS MER

  4. 18. Phase chemistry in process models for cement clinker and lime production

    Författare :Bodil Hökfors; Rainer Backman; Bo Björkman; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process modelling; phase chemistry; cement clinker; lime; sustainability; CO2; energy;

    Sammanfattning : The goal of the thesis is to evaluate if developed phase chemical process models for cement clinker and lime production processes are reliable to use as predictive tools in understanding the changes when introducing sustainability measures.The thesis describes the development of process simulation models in the application of sustainability measures as well as the evaluation of these models. LÄS MER

  5. 19. Fundamental studies of catalytic systems for diesel emission control

    Författare :Xavier Auvray; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NH3 SCR; NO oxidation; sulfur; hysteresis; kinetic modeling; SpaciMS; catalyst acidity; DOC; aging; Pt Al2O3;

    Sammanfattning : Due to global lean exhaust gas and new emission regulations, exhaust aftertreatment systems of diesel engines are more and more sophisticated and composed of a series of catalytic units. In the present work, two of these catalytic systems were studied with different approach. LÄS MER

  7. 20. Epidemiological studies of congenital heart defects in the Southeast region of Sweden

    Författare :Marie Cedergren; Elisabeth Robert-Gnansia; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : In the most recent analysis of Swedish data on congenital malformations, it appeared that in the county of Östergötland, the prevalence of infants with a diagnosed congenital malformation was higher than in the rest of the country. This observation initiated an effort to make a more complete identification of all infants born with a congenital malformation in that county and to compare it with the other two counties in the Southeast region of Sweden (Jönköping and Kalmar), utilising all the relevant Swedish medical health registers available. LÄS MER