Sökning: "refineries"

Visar resultat 1 - 5 av 25 uppsatser innehållade ordet refineries.

  1. 1. Modelling the chemical recycling of plastic waste via pyrolysis and analysing integration with existing refinery infrastructure

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Simon Dahl; [2023]
    Nyckelord :Pyrolysis; Recycling; Integration; Modelling; Simulation; Techno-economic; Plastic; Chemical engineering; Technology and Engineering;

    Sammanfattning : Current plastic management is unsustainable as large amounts of plastic end up landfilled or in the ocean, necessitating an expansion of waste management infrastructure. Pyrolysis is a viable chemical recycling option, and in this report a pyrolysis model is constructed in Aspen Plus. LÄS MER

  3. 2. Klimatvänliga inköp avtransporttjänster inomdrivmedelsindustrin

    Master-uppsats, KTH/Produktionsutveckling

    Författare :David Eurenius; [2023]
    Nyckelord :;

    Sammanfattning : Klimatförändringarna ställer krav på alla delar av samhället att hitta mer hållbara lösningar. Inrikes transporter står för cirka en tredjedel av Sveriges utsläpp av växthusgaser där Preem som Sveriges största drivmedelsbolag har en central roll i omställningen. LÄS MER

  4. 3. “Gold is gold”: Understanding the role of European actors along the supply chain of Colombian gold

    Master-uppsats, Lunds universitet/LUCSUS

    Författare :Catalina Scheer; [2022]
    Nyckelord :Supply Chain Sustainability; Conflict Minerals; Gold; Transparency; Sustainability Science; Social Sciences;

    Sammanfattning : Gold mining causes various negative social and environmental impacts in countries of extraction like Colombia. Voluntary and legal efforts to tackle these challenges have recently increased in Europe. To understand the complex supply chain and the impact of the newly evolved governance structures better, more research is needed. LÄS MER

  5. 4. Improvement of Pt-based catalyst supported on CeZrO2 used for the high-temperature water-gas shift reaction

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Milda Grikainyte; [2022]
    Nyckelord :Water-gas shift; catalyst; chemical engineering; Chemistry;

    Sammanfattning : The iron-chromium (Fe/Cr) catalyst is used for high-temperature water-gas shift (HT WGS) reaction. A major concern using the Fe/Cr catalyst is that it contains hexavalent chromium (Cr+6) which is a potent carcinogen causing health and environmental issues. LÄS MER

  7. 5. Heat Transfer Analysis on the Applications to Heat Exchangers

    Master-uppsats,

    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