Search for dissertations about: "Refractory"

Showing result 1 - 5 of 197 swedish dissertations containing the word Refractory.

  1. 1. Refractory corrosion in biomass gasification

    University dissertation from Umeå : Umeå Universitet

    Author : Markus Carlborg; Umeå universitet.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Refractory corrosion; slag; biomass; gasification; Materials Science; materialvetenskap;

    Abstract : To stop the net emission of CO2 to the atmosphere, we need to reduce our dependency of fossil fuels. Although a switch to a bio-based feedstock hardly can replace the total amount of fossils used today, utilization of biomass does still have a role in a future in combination with other techniques. READ MORE

  2. 2. Study on the Interaction between Refractory and Liquid Steel Regarding Steel Cleanliness

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Zhiyin Deng; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; refractory; inclusions; Al-killed steel; submerged entry nozzle; clogging;

    Abstract : The present thesis focuses on the interaction between refractory and liquid steel. The aim of this work is to understand the interaction behavior between refractory and liquid steel regarding steel cleanliness. The effect of different refractories on different inclusions in Al-killed steel was studied in a furnace. READ MORE

  3. 3. A study on molten steel/slag/refractory reactions during ladle steel refining

    University dissertation from Stockholm : KTH

    Author : Sune Jansson; KTH.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; reoxidation; aluminium killed steel; inclusions; refractory; molten slag; corrosion rate; Materialvetenskap; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Abstract : .... READ MORE

  4. 4. Black liquor gasification experimental stability studies of smelt components and refractory lining

    University dissertation from Umeå : Energiteknik och termisk processkemi

    Author : Mathias Råberg; Umeå universitet.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; black liquor gasification; DTA; stability; thermal analysis; thermochemical data; HTM; HT-XRD; metastable; phase diagram; refractory lining; SEM; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Chemical energy engineering; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Kemisk energiteknik;

    Abstract : Black liquors are presently combusted in recovery boilers where the inorganic cooking chemicals are recovered and the energy in the organic material is converted to steam and electricity. A new technology, developed by Chemrec AB, is black liquor gasification (BLG). READ MORE

  5. 5. A study on the Submerged Entry Nozzels (SEN) respecting clogging and decarburization

    University dissertation from Stockholm : US-AB

    Author : Arashk Memarpour; KTH.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Refractory; SEN; Clogging; REM; Coating; glaze; alkaline; Refractory; ZrSi2; Graphite; Alumina; Oxidation; Al2O3-C; ZrO2-C; MgO-C; decarburization; reaction mechanism; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Abstract : The submerged entry nozzle (SEN) has been used to transport the molten steel from tundish to the mould. The main purpose of the SEN usage is both to prevent oxygen and nitrogen pick-up by molten steel and to achieve the desired flow condition in the mould. READ MORE