Search for dissertations about: "diesel oxidation catalyst"

Showing result 16 - 20 of 33 swedish dissertations containing the words diesel oxidation catalyst.

  2. 16. Catalytic partial oxidation of methane over nickel and ruthenium based catalysts for GTL applications

    Author : Jorge A. Velasco; Magali Boutonnet; Sven Järås; Henrik Kusar; Stan Kolaczkowski; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Catalytic partial oxidation; carbon formation; GTL; nickel; ruthenium; synthesis gas; thermodynamic equilibrium.; Chemical Engineering; Kemiteknik;

    Abstract : The Gas to Liquids (GTL) process is an important alternative for monetizing natural gas through the production of long-chain liquid hydrocarbons, e.g. diesel fuel. READ MORE

  4. 17. Particulate Matter Emissions from Partially Premixed Combustion with Diesel, Gasoline and Ethanol

    Author : Mengqin Shen; Förbränningsmotorer; []
    Keywords : PPC; PM emissions; Diesel; Gasoline; Ethanol; Particle size distribution;

    Abstract : To achieve cleaner combustion and higher efficiency in compression ignition (CI) engines, many new combustion strategies have been developed. Among these new concepts, partially premixed combustion (PPC) attracts a lot of attention, because of its possibility to achieve simultaneously low soot and NOx. READ MORE

  5. 18. Experimental and kinetic studies of H2 effect on lean exhaust aftertreatment processes: HC-SCR and DOC

    Author : Muhammad Mufti Azis; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HC-SCR; NO oxidation.; Hydrogen effect; NOx reduction; Kinetic modeling; Silver Alumina; DOC; Platinum Alumina;

    Abstract : With a growing concern to lower greenhouse gas emissions from road transportation, lean burn and diesel engines will keep playing an important role in the future. Development of a highly efficient and durable process to reduce NOx to N2 becomes a challenging issue especially in the presence of ample O2 concentration as in lean burn exhaust. READ MORE

  6. 19. FTIR Studies and Kinetic Modelling of NOX Reduction and NOX Storage

    Author : Björn Westerberg; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NOX storage; kinetic modelling; diesel exhaust; alumina; NOX reduction; FTIR spectroscopy; catalysis;

    Abstract : FTIR spectroscopy and kinetic modelling have been used to study catalysts for NOX reduction and NOX storage. For Pt/Al2O3 exposed to NO, oxygen and propene IR-bands associated with nitrates, acetate, formate, carbonates and isocyanate were observed. Experiments with NO, oxygen and HNCO showed that isocyanate is an intermediate for reduction of NOX. READ MORE

  7. 20. Hydrogen generation from dimethyl ether by autothermal reforming

    Author : Marita Nilsson; Lars Pettersson; Ann Cornell; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; autothermal reforming; auxiliary power unit; dimethyl ether; fuel cell; hydrogen; palladium; reforming catalyst; temperature-programmed reduction; truck idling; X-ray diffraction; zinc; Chemical engineering; Kemiteknik;

    Abstract : Heavy-duty trucks are in idle operation during long periods of time, providing the vehicles with electricity via the alternator at standstill. Idling trucks contribute to large amounts of emissions and high fuel consumption as a result of the low efficiency from fuel to electricity. READ MORE