Search for dissertations about: "bed agglomeration"

Showing result 1 - 5 of 45 swedish dissertations containing the words bed agglomeration.

  2. 1. Layer Formation on Bed Particles during Fluidized Bed Combustion and Gasification of Woody Biomass

    Author : Hanbing He; Marcus Öhman; Kent Davidsson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; layer formation; bed particle; woody biomass; quartz; K-feldspar; olivine; bed agglomeration; deposition; fluidized bed; combustion; gasification; Energiteknik; Energy Engineering;

    Abstract : Although more than a hundred papers dealing with the agglomeration problem in combustion and gasification of biomass can be found in the literature, very few studies focusing on the bed particle layer formation process in fluidized bed combustion (FBC) and fluidized bed gasification (FBG) can be found. With increased knowledge of the bed particle layer formation process — i. READ MORE

  4. 2. Impact of Ash on the Properties of Fluidized Bed Materials

    Author : Robin Faust; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ash interaction; layer formation; agglomeration; fluidized bed; catalytic tar removal; oxygen carrying; bed material;

    Abstract : The utilization of the fluidized bed technology offers the possibility of thermally converting a large variety of biogenic feedstocks. The characteristics of the bed material which is used in the process play a major role regarding the overall process performance. READ MORE

  5. 3. The Survey of Ash Agglomeration Phenomena in a Commercial Circulating Fluidised Bed (CFB)

    Author : Ann Charlotte Tranvik; Mehri Sanati; Britt-Marie Steenari; Växjö universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFB; combustion; biomass; agglomeration; ash; silicate; potassium; bed material; layer; deposition; Thermal energy engineering; Termisk energiteknik;

    Abstract : Renewable energy sources will act an important roll in the development of sustainability in the future in order to protect environment and ecological cycle.Amongst the Kyoto protocol conclusions there is an agreements for the EU a reduction of 8 % of greenhouse gas emissions (corresponding of around 6 million tonnes of CO2 equivalents ) between 2008-2012 (compared to 1990 level). READ MORE

  6. 4. Ash Behavior in Fluidized-Bed Combustion and Gasification of Biomass and Waste Fuels : Experimental and Modeling Approach

    Author : Farzad Moradian; Högskolan i Borås; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluidized-bed; combustion; gasification; waste-derived fuels; biomass; ash-related problems; deposit; fouling; slagging; bed agglomeration; thermodynamic equilibrium modeling;

    Abstract : Over the past few decades, a growing interest in the thermal conversion of alternative fuels such as biomass and waste-derived fuels has been observed among the energy-producing companies. Apart from meeting the increasing demand for sustainable heat and power production, other advantages such as reducing global warming and ameliorating landfilling issues have been identified. READ MORE

  7. 5. Use of Bed Materials in Dual Fluidized Bed (DFB) Systems

    Author : Jelena Maric; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bed material; Chemical looping reforming; Dual Fluidized Bed;

    Abstract : Dual Fluidized Bed (DFB) gasification is one alternative for the production of biofuels. In a DFB gasification process, the bed material plays a crucial role. Primary role of the bed material is to provide the heat needed for the gasification reaction. READ MORE