Sökning: "washcoat"

Visar resultat 1 - 5 av 17 avhandlingar innehållade ordet washcoat.


    Författare :Magnus Walander; Chalmers University of Technology; []
    Nyckelord :EATS; scanning electron microscope; Exhaust aftertreatment modelling; gravimetric analysis; effective diffusivity; synthetic catalyst activity test; washcoat; diesel oxidation catalyst;

    Sammanfattning : The use of liquid fuels in the internal combustion engine inherently produces several toxic emissions that need to be removed. This is done through a series of catalytic converters, referred to as the exhaust aftertreatment system (EATS), each catalyst with its own purpose. LÄS MER

  2. 2. Modelling of Catalytic Monolith Reactors for Exhaust Aftertreatment

    Författare :Magnus Walander; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; parameter estimation; effective diffusivity; EATS; synthetic catalyst activity test; scanning electron microscope; washcoat; diesel oxidation catalyst; Exhaust aftertreatment modelling; gravimetric analysis;

    Sammanfattning : The incomplete combustion of liquid or gaseous fuels in the internal combustion engine inherently produces several toxic emissions that need to be  removed. This is done through a series of catalytic converters, referred to as the exhaust aftertreatment system (EATS), each catalyst with its own purpose. LÄS MER

  3. 3. Mathematical Modelling of Structured Reactors with Emphasis on Catalytic Combustion Reactions

    Författare :Dennis Papadias; KTH; []
    Nyckelord :Mathematical modelling; Structured reactors; Catalytic combustion; Monolith; Annular reactor; Washcoat; Mass-transfer; Kinetics;

    Sammanfattning : .... LÄS MER

  4. 4. Deactivation of commercial three-way catalysts: Experimental and theoretical studies

    Författare :Anna Fathali; Chalmers University of Technology; []
    Nyckelord :; car exhaust; three-way catalyst TWC ; alumina; fuel-cut; palladium; hydrocarbon cracking; ceria; deactivation; oxygen storage capacity OSC ; rhodium; zirconia; sintering; monolith catalyst; catalysis;

    Sammanfattning : This PhD thesis is a summary of my work with thermal deactivated commercial three way catalysts (TWCs). An examination of catalytic properties, before and after accelerated aging was performed, such as light-off temperature, specific surface area (BET), noble metal dispersion and oxygen storage capacity was performed. LÄS MER

  5. 5. Mixed metal oxide - noble metal catalysts for total oxidation of volatile organic compounds and carbon monoxide

    Författare :Magali Ferrandon; KTH; []
    Nyckelord :wood combustion; catalysts; total oxidation; manganese; copper; platinum; palladium; lanthanum; cerium; CO; VOC; methane; deactivation; thermal stability; sulphur dioxide;

    Sammanfattning : CO, volatile organic compounds, and polyaromatics areubiquitous air pollutants that give rise to deleterious healthand environmental effects. Such compounds are emitted, forinstance, by the combustion of wood, particularly fromsmall-scale heating appliances. LÄS MER