Sökning: "refineries"

Visar resultat 1 - 5 av 21 uppsatser innehållade ordet refineries.

  1. 1. Heat Transfer Analysis on the Applications to Heat Exchangers


    Författare :Raghu Lakshman Gundra; Jagadeesh reddy Medapati; [2021]
    Nyckelord :CFD anlysis; Heat exchangers; Heat transfer analysis; Heat equation temperature; Temperature equilibrium.;

    Sammanfattning : A heat exchanger is a device used to transfer thermal energy between two or more fluids, at different temperatures in thermal contact. They are widely used in aerospace, chemical industries, power plants, refineries, HVAC refrigeration, and in many industries. LÄS MER

  2. 2. Exploring Managerial Challenges Emerging from Procurement of Mineral Concentrates : Case study on Boliden

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :SANJIN PEPIC; BABACK ZARIF; [2021]
    Nyckelord :Mining; refining; procurement; copper; complex concentrate; challenges; Gruvindustrin; raffinering; inköp; koppar; komplex koncentrat; utmaningar;

    Sammanfattning : Procurement of copper concentrate is becoming increasingly more challenging as the general quality of concentrates are decreasing. Concentrates are now coming with higher shares of impurities and secondary materials, which makes them harder to process. LÄS MER

  3. 3. Microwave Heat Treatment of Black Liquor for the Degradation of Hemicellulose

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Maja Rydgård; [2020]
    Nyckelord :lignin; biofuel; black liquor; heat treatment; microwave heating; chemical engineering; kemiteknik; Technology and Engineering; Chemistry;

    Sammanfattning : The largest use of fossil petroleum is the production of fuels. Hence, finding sustainable alter-natives is an important step to reduce the emissions of greenhouse gases. One such alternative is to produce fuel from biomass, such as waste products from agriculture and the forest indus-try. LÄS MER

  4. 4. Transportation of Precious Metal Slurry

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik; Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Erik Ögren; Oscar Selberg; [2020]
    Nyckelord :Slurry; Transportation of Precious Metal Slurry; Concept Development;

    Sammanfattning : Outotec Sweden AB works in the field of precious metal refining. Silver electrorefining is one of Outotec’s technologies widely applied in numerous silver refining plants worldwide. During this project a specific section in a silver refinery plant has been investigated. LÄS MER

  5. 5. Environmental Assessment of Electrolyzers for Hydrogen Gas Production

    Uppsats för yrkesexamina på avancerad nivå, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Camilla Sundin; [2019]
    Nyckelord :Electrolysis; Hydrogen Production; Life Cycle Analysis; Alkaline Electrolyzer; Molten Carbonate Electrolyzer; Solid Oxide Electrolyzer; Polymer Electrolyte Membrane Electrolyzer; Elektrolys; Vätgasproduktion; Livscykelanalys; Alkalisk Elektrolysör; Smältkarbonatelektrolyser; Fastoxidelektrolysör; Polymerelektrolytelektrolysör.;

    Sammanfattning : Hydrogen has the potential to become an important energy carrier in the future with many areas of applications, as a clean fuel for transportation, heating, power generation in places where electricity use is not fit, etc. Already today hydrogen plays a key role in numerous industries such as petroleum refineries and chemical industries. LÄS MER