Sökning: "Platinum group metals"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Platinum group metals.

  1. 1. Återvinning av platinametaller ur fordons katalysatorer : Litteraturstudie om återvinningsprocesser av katalysatorer inom fordonsindustrin med avseende på miljöpåverkan

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

    Författare :Jack Danha; Zahid Abedin; [2023]
    Nyckelord :;

    Sammanfattning : Antalet bilar fortsätter att öka kraftigt i världen vilket skapar stora mängder av utsläpp som orsakar allvarliga miljöproblem. För att minska utsläppet av fordon med förbränningsmotorer används fordons katalysatorer. LÄS MER

  3. 2. A SCENARIO ANALYSIS OF PLATINUM GROUP METALS WITHIN THE TRUCKING INDUSTRY

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Sara Arnhjort; Karin Rundqvist; [2020-07-22]
    Nyckelord :Trucking industry; Platinum group metals; PGM; Scenario planning; PGM within trucking industry;

    Sammanfattning : Platinum Group Metals (PGM) are important components within the automotive industry, used for cleaning vehicles toxic gas emissions. An increasing demand of these metals have been observed, and simultaneously, mining organisations have been experiencing declining ore grades in the mines, causing the demand to exceed the supply. LÄS MER

  4. 3. Mining in Zero Gravity

    Master-uppsats, Umeå universitet/Designhögskolan vid Umeå universitet

    Författare :Anders Sandström; [2018]
    Nyckelord :Design; Industrial Design; Product Design; MFA; Zero Gravity; Space Mining; Asteroid Mining; Future of Mining; Mining; Space; Space Industry; Asteroid; Autonomous; Space Flight;

    Sammanfattning : Regardless of new mining technologies and environmental regulations, the minerals we extract from the earth’s crust will eventually run out. Likewise, our society demands a constant increase of technology to improve our quality of life. LÄS MER

  5. 4. PILCs for trapping phosphorus in a heavy duty engine exhaust system : An experimental evaluation of the phosphorus sorption capability of different clay materials

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Anders Kvarned; [2016]
    Nyckelord :PILC; PCH; phosphorus sorption; exhaust treatment; catalyst poisoning;

    Sammanfattning : In order to fulfil the requirements in the EURO VI standard, regulating emissions from heavy duty vehicles, the exhaust aftertreatment system needs to maintain its efficiency for at least seven years or 700 000 km. In diesel applications the diesel oxidation catalyst (DOC) is located closest to the engine and is thus the most vulnerable to poisoning contaminants, such as phosphorus originating from fuel and oil additives, which deactivates the catalyst. LÄS MER

  7. 5. Formation of cobalt oxide clusters on oxygen modified graphene

    Kandidat-uppsats, Lunds universitet/MAX IV-laboratoriet; Lunds universitet/Fysiska institutionen

    Författare :Robin Schneider; [2015]
    Nyckelord :Graphene; Cobalt oxide; clusters; STM; XPS; LEED; moire pattern; oxygen functionalized graphene; rocksalt; spinel; Iridium; Ir 111 ; monolayer graphene; oxygen radicals; carbon; Physics and Astronomy;

    Sammanfattning : Aim of this thesis is to study and characterize the formation of cobalt oxide clusters on graphene. The performed experiments consist of three different steps. First, a monolayer graphene film is grown with temperature programmed growth and chemical vapor deposition on an Iridium (111) single crystal surface. LÄS MER