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Showing result 1 - 5 of 24 swedish dissertations matching the above criteria.

  2. 1. Cobalt catalyst supports for Fischer-Tropsch synthesis

    Author : Fatima Pardo-Tarifa; Lars J. Pettersson; Olga Guerrero; KTH; []
    Keywords : Silica; alumina; zirconium; cerium; mesoporous materials; nanoparticles; microemulsion; atrane route; cobalt catalyst; Fischer-Tropsch synthesis; Chemical Engineering; Kemiteknik;

    Abstract : In the Fischer-Tropsch (FT) synthesis, CO and H2 (synthesis gas) are converted into hydrocarbons that can be further upgraded to high-quality fuels and chemicals. Different carbon sources such as natural gas, coal and biomass can be used as feed-stocks for the synthesis gas. READ MORE

  4. 2. Fischer-Tropsch Synthesis over Cobalt-based Catalysts for BTL applications

    Author : Matteo Lualdi; Christofer Leygraf; Roy Johnsen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cobalt; Fischer-Tropsch; syngas; selectivity;

    Abstract : Fischer-Tropsch synthesis is a commercial technology that allows converting synthesis gas, a mixture of CO and H2, into fuels and chemicals. This process could be one of the actors in the reduction of oil dependency of the transportation sector. READ MORE

  5. 3. An Experimental Study of Fischer-Tropsch Fuels in a Diesel Engine

    Author : Monica Larsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Alternative Fuels; Fischer-Tropsch; GTL;

    Abstract : Alternative fuels for Diesel engines include ester-based fuels (derived from sources such as rapeseed, soybeans and palm oil), dimethyl ether, and various synthetic fuels. Use of these fuels could contribute to a cleaner environment, reduce global warming and improve the human health by reducing levels of harmful emissions. READ MORE

  6. 4. Fischer-Tropsch and FAME Fuels as Alternatives for Diesel Engines; an Experimental Study

    Author : Monica Johansson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Emissions; SME; Fischer-Tropsch; NOx; Combustion; Alternative fuels; Soot; Biodiesel; RME; FAME; GTL; PME;

    Abstract : Research into alternative fuels is necessitated by our heavy reliance on limited oil reserves and increasingly strict emissions legislation. The studies reported in this thesis involved conducting engine tests using alternatives to fossil Diesel fuel in both heavy-duty and light-duty single cylinder engines. READ MORE

  7. 5. Deactivation of cobalt and nickel catalysts in Fischer-Tropsch synthesis and methanation

    Author : Javier Barrientos; Magali Boutonnet; Claude Mirodatos; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cobalt; nickel; Fischer-Tropsch synthesis; methanation; deactivation; carbonyl; sintering; carbon fomation. sulfur; poisoning; Chemical Engineering; Kemiteknik;

    Abstract :             A potential route for converting different carbon sources (coal, natural gas and biomass) into synthetic fuels is the transformation of these raw materials into synthesis gas (CO and H2), followed by a catalytic step which converts this gas into the desired fuels. The present thesis has focused on two catalytic steps: Fischer-Tropsch synthesis (FTS) and methanation. READ MORE