Search for dissertations about: "water deactivation"

Showing result 1 - 5 of 28 swedish dissertations containing the words water deactivation.

  2. 1. Water oxidation : From Molecular Systems to Functional Devices

    Author : Quentin Daniel; Licheng Sun; Marc Robert; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Water oxidation; Renewable energy; Electrochemistry; EPR; Devices; Molecular system; Characterization; Kemi; Chemistry;

    Abstract : The production of hydrogen gas, through the process of water splitting,is one of the most promising concepts for the production of clean andrenewable fuel.The introduction of this thesis provides a brief overview of fossil fuelsand the need for an energy transition towards clean and renewable energy. READ MORE

  4. 2. Selective Catalytic Reduction of NOx: Deactivation and Regeneration Studies and Kinetic Modelling of Deactivation

    Author : Raziyeh Khodayari; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical technology and engineering; modelling; sulphation; regeneration; deactivation; bio fuel; WO3; V2O5; TiO2; catalyst; NOx; SCR; Kemiteknik och kemisk teknologi; Chemistry; Kemi;

    Abstract : Selective catalytic reduction of NOx (SCR) has been recognised as an effective post-combustion method for reducing nitrogen oxides from stationary sources. The cost of replacing the catalyst is a major part of the maintenance of the SCR system, hence it is desirable to advance methods to prolong the catalyst life. READ MORE

  5. 3. Complete methane oxidation over alumina and zeolite supported palladium for emission control

    Author : Ida Friberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Pd zeolite; Pd Al2O3; sulfur poisoning; stoichiometric; hydrothermal aging; water deactivation; regeneration; methane oxidation; Ba;

    Abstract : The use of methane-based fuels, such as natural gas and biogas, gives lower emissions of for instance carbon dioxide (CO2) and particulate matters compared to traditionally used liquid fossil fuels. However, the exhaust gases contain significant levels of unburnt methane (CH4) residuals, which are desirable to minimize since CH4 has a high global warming potential. READ MORE

  6. 4. Palladium Catalyzed Methane Oxidation for Emission Control

    Author : Ida Friberg; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; water deactivation; methane oxidation; regeneration; Pd beta; Pd Al2O3; Si Al ratio; Ba; sulfur poisoning; Pd SSZ-13;

    Abstract : The use of methane based fuels, such as natural gas and biogas, benefits from lower emissions of CO2, CO, NOx, non-methane HC, SOx and particulate matters compared to traditionally used liquid fossil fuels. However, the exhaust gases contain significant levels of unburnt CH4 residuals, which are desirable to minimize since CH4 is a strong greenhouse gas with high global warming potential. READ MORE

  7. 5. Development and Mechanistic Studies of Molecularly Defined Water Oxidation Catalysts : Catalysts for a Green and Sustainable Future

    Author : Markus Kärkäs; Björn Åkermark; Jean-François Nierengarten; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; artificial photosynthesis; water oxidation; photochemistry; electrochemistry; organisk kemi; Organic Chemistry;

    Abstract : This thesis deals with the development of complexes that are active catalysts for H2O oxidation. Promoting proton-coupled electron transfer has been a highly important feature in the development of these catalysts. READ MORE