Essays about: "AOD converter"

Showing result 1 - 5 of 6 essays containing the words AOD converter.

  1. 1. What If We Tilt the AOD? : Developing a numerical and physical model of a downscaled AOD converter to investigate flow behaviour when applying an inclination.

    University essay from KTH/Materialvetenskap

    Author : Serg Chanouian; [2019]
    Keywords : AOD; inclination angle; penetration depth; mixing time;

    Abstract : In a scrap based stainless steel plant the dominant process for carbon reduction is the Argon oxygen decarburisation process (AOD). The process goes through three steps: decarburisation, reduction and desulphurisation where the main challenge is to oxidise carbon to CO without oxidising the expensive chromium. READ MORE

  3. 2. Neutralizing acidic wastewater from the pickling process using slag from the steelmaking process : A pilot study in project "Neutralsyra"

    University essay from KTH/Materialvetenskap

    Author : Julia Brännberg Fogelström; Amelie Lundius; Hedda Pousette; [2017]
    Keywords : Slag; Neutralization; Lime; Lime Concentrate; Acidic wastewater; pH; Landfill; Byproducts; Slagg; Neutralisering; Kalk; Kalkkoncentrat; Surt avfallsvatten; pH; Deponi; Restprodukter;

    Abstract : Properties and origins of two byproducts from steelmaking plants, slag and acidic wastewater, are investigated in this report. The slags' suitability as neutralizing agents of acidic wastewater from the pickling process, with regard to amount of slag required and the environmental impact of the produced byproducts is investigated. READ MORE

  4. 3. Acid neutralization using steel slags : Adsorption of fluorides in solutions using AOD slags

    University essay from KTH/Materialvetenskap

    Author : Jesper Larsson; [2015]
    Keywords : acid neutralization; AOD slag; fluoride adsorption; syraneutralisering; AOD slagg; fluoradsorption;

    Abstract : Surface treatment processes of stainless steel, such as pickling, produces acidic waste water consisting of Na⁺, Cl⁻, F⁻, NO⁻3, SO42-, PO43-, Fe3+, Cr6+ and Ni2+. At Sandvik ABs steel works in Sandviken, this waste water is treated and neutralized using slaked lime before being released into the lake Storsjön. READ MORE

  5. 4. Possibilities and limitations of exhaust gas analysis for expanded use in control of an AOD-converter

    University essay from KTH/Tillämpad processmetallurgi

    Author : Jonas Laxén; [2012]
    Keywords : : Exhaust gas analysis; off-gas analysis; dynamic model; carbon prediction model; AOD converter; carbon content;

    Abstract : The main purpose of the AOD-converter is to lower the carbon content in stainless steel production. The carbon content can be estimated by static theoretical models. It can also be estimated through dynamic models based on analysis of the exhaust gases from the converter. READ MORE

  6. 5. Optimization of the AOD stainless steel processing cost by the UTCAS System

    University essay from KTH/Materialvetenskap

    Author : Chay Ta-uar; [2012]
    Keywords : AOD;

    Abstract :  The Argon Oxygen Decarburization (AOD) process is one of the major stainless steel refining routes. Several parameters come into play deciding the outcome of the process. The task focuses on studying an optimized processing in an AOD converter using the UHT’s Converter Automation System (UTCAS)-process control program. READ MORE