Search for dissertations about: "TEKNIKVETENSKAP Kemiteknik"

Showing result 1 - 5 of 328 swedish dissertations containing the words TEKNIKVETENSKAP Kemiteknik.

  1. 1. CO2 mitigation in advanced power cycles

    University dissertation from Stockholm : Kemiteknik

    Author : Jens Wolf; KTH.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; chemical looping combusion; co2 capture; hydrogen production; trigeneration; co-generation; Kemiteknik; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Abstract : This thesis encompasses CO2 mitigation using three different processes: i) natural gas-fired combined cycle with chemical looping combustion (CLC), ii) trigeneration of electrical power, hydrogen and district heating with extended CLC, iii) steam-based gasification of biomass integrated in an advanced power cycle.In CLC, a solid oxygen carrier circulates between two fluidised-bed reactors and transports oxygen from the combustion air to the fuel; thus, the fuel is not mixed with air and an inherent CO2 separation occurs. READ MORE

  2. 2. Assessment of tools for environmentally preferable procurement with a life cycle perspective the case of acquisition in Swedish defence

    University dissertation from Stockholm : KTH

    Author : Elisabeth Hochschorner; KTH.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; Acquisition; Ecodesign tools; Life Cycle Assessment; LCA; MECO; Public procurement; Simplified; Kemiteknik; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Abstract : Procurement in public and non-public organisations has the potential to influence product development towards more environmentally preferable products. In 2003, public procurement in Sweden was 28% of GDP. Different types of approaches can contribute some knowledge and thereby facilitate the choice of environmentally preferable products. READ MORE

  3. 3. Bimetallic palladium catalysts for catalytic combustion of methane

    University dissertation from Stockholm : KTH

    Author : Katarina Persson; KTH.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; catalytic combustion; gas turbine; methane; palladium; bimetal; morphology; TPO; TEM; EDS; methane activity; stability; pressure; Kemiteknik; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Abstract : Catalytic combustion is a promising combustion technique in gas turbines, which results in ultra low levels of NOx, CO and unburned hydrocarbons. Due to the low combustion temperature achieved in catalytic combustion almost no thermal NOx is formed. The focus in this thesis will be on the first stage in a catalytic combustion chamber, i.e. READ MORE

  4. 4. Development of methane oxidation catalysts for different gas turbine combustor concepts

    University dissertation from Stockholm : KTH

    Author : Sara Eriksson; KTH.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; catalytic combustion; methane oxidation; ceria; palladium; platinum; rhodium; TPO; Kemiteknik; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Abstract : Due to continuously stricter regulations regarding emissions from power generation processes, development of existing gas turbine combustors is essential. A promising alternative to conventional flame combustion in gas turbines is catalytic combustion, which can result in ultra low emission levels of NOx, CO and unburned hydrocarbons. READ MORE

  5. 5. The role of absorption cooling for reaching sustainable energy systems

    University dissertation from Stockholm : KTH

    Author : Susanne Lindmark; KTH.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; Absorption cooling; trigeneration; district cooling; humidified gas engine; waste heat; Kemiteknik; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Abstract : The energy consumption is continuous to increase around the world and with that follows the demand for sustainable solutions for future energy systems. With growing energy consumption from fossil based fuels the threat of global warming through release of CO2 to the atmosphere increases. READ MORE