Sökning: "slag metal reaction"

Visar resultat 1 - 5 av 18 avhandlingar innehållade orden slag metal reaction.

  1. 1. Mass transfer and slag-metal reaction in ladle refining : a CFD approach

    Författare :Eva Ramström; Du Sichen; Mselly Nozotta; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reoxidation; desulphurisation; CFD; ladle treatment; model; Other materials science; Övrig teknisk materialvetenskap;

    Sammanfattning :   In order to optimise the ladle treatment mass transfer modelling of aluminium addition and homogenisation time was carried out. It was stressed that incorporating slag-metal reactions into the mass transfer modelling strongly would enhance the reliability and amount of information to be analyzed from the CFD calculations. LÄS MER

  3. 2. 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

  4. 3. A Study on Desulfurization of Hot Metal Using Different Agents

    Författare :David Lindström; Du Sichen; Nortier Patrice; Shin-ya Kitamura; KTH; []
    Nyckelord :desulfurization; hot metal; CaO; Mg; CaC2; ZnO; reaction mechanism; desulfurization abilities; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : This thesis deals with desulfurization of hot metal using different agents. The aim of this study was to improve the understanding of commonly used desulfurization agents such as fluidized CaO, CaC2, commercial-CaO, Mg, and mixtures of commercial-CaO-Mg. The possibility to use ZnO for desulfurization of hot metal was also investigated. LÄS MER

  5. 4. A study of some aspects of gas-slag-metal interactions : Towards dynamic process model and control

    Författare :Mattias Ek; Sichen Du; Stuart Millman; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; BOF; process modeling; phosphorous capacity; penetration depth; slag foaming; mixing time; inclusion removal;

    Sammanfattning : The present thesis deals with the development of a new type of dynamic model for metallurgical reactors. It also covers some of the theoretical aspects of steelmaking that is necessary to include in such an application. The thesis consists of modeling work, high temperature experiments and cold model experiments. LÄS MER

  7. 5. Extraction of Metal Values : Thermodynamics of Electrolyte Solutions and Molten Salts Extraction Process

    Författare :Xinlei Ge; Seshadri Seetharaman; Katsunori Yamaguchi; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrolyte solutions; activity coefficient; osmotic coefficient; freezing point depression; boiling point elevation; Materials science; Teknisk materialvetenskap;

    Sammanfattning : Over the past centuries, a number of process routes for extraction of metal values from an ore or other resources have been developed. These can generally be classifiedinto pyrometallurgical, hydrometallurgical or electrometallurgical routes. LÄS MER