Search for dissertations about: "catalytic"

Showing result 21 - 25 of 1255 swedish dissertations containing the word catalytic.

  2. 21. Entrained-Flow Gasification of Black Liquor and Pyrolysis Oil : Experimental and Equilibrium Modelling Studies of Catalytic Co-gasification

    Author : Yawer Jafri; Rikard Gebart; Martin Seemann; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Black liquor; pyrolysis oil; catalytic gasification; co-gasification; gasification; entrained-flow gasification; pilot-scale; Energy Engineering; Energiteknik;

    Abstract : The last couple of decades have seen entrained-flow gasification of black liquor (BL) undergo an incremental process of technical development as an alternative to combustion in a recovery boiler. The ability of the technology to combine chemical recovery with the production of clean syngas renders it a promising candidate for the transformation of chemical pulp mills into integrated forest biorefineries. READ MORE

  4. 22. Catalytic Oxidation of Emissions from Residential Wood fired boilers

    Author : Magnus Berg; KTH; []
    Keywords : biomass; wood; combustion; residential boilers; applied catalysis; catalytic oxidation; VOC; carbon monoxide;

    Abstract : The European Commission has set a target of doubling theenergy supply from renewable sources from 6% in 1997 to 12% in2010. An increased usage of biofuels will play an importantrole in meeting this target. READ MORE

  5. 23. Mathematical Modelling in Catalytic Automotive Pollution Control

    Author : Lennart Andersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; automotive pollution control; matematical modelling; monolith; selective catalytic reduction; mass transfer;

    Abstract : Design and control of honeycomb monolith reactors for catalytic automotive pollution control by mathematical modelling of the reactor has been studied. One aspect of the design has been that the use of metallic monolithic catalysts for automotive emission control raises certain optimization possibilities. READ MORE

  6. 24. Selective Catalytic Reduction of NOx with NH3

    Author : Hanna Maria Sjövall; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ammonia oxidation; Zeolite; Ammonia; IR spectroscopy; SCR; Selective Catalytic Reduction; Nitrogen oxide; NO reduction; Cu-ZSM-5; FTIR;

    Abstract : .... READ MORE

  7. 25. Fluid Catalytic Cracking Catalyst Demetallization and Reactivation, Modeling of Catalytic Cracking, and Use of Microwaves to Heat Fluid Beds

    Author : Frank J. Elvin; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; pilot plant; nickel and vanadium deposition; catalyst; reactivation; demetallization; catalytic cracking; and microwave heating; MAT; fluid bed;

    Abstract : The fluid catalytic cracking unit (FCCU), the major conversion unit in an oil refinery, uses a silica-alumina zeolite catalyst to convert heavy hydrocarbons to light hydrocarbons. A small fraction of the catalyst must be continually replaced with fresh catalyst to maintain activity. READ MORE