Essays about: "Catalyst deactivation"

Showing result 11 - 15 of 15 essays containing the words Catalyst deactivation.

  1. 11. A simulation model of a reactor for ethylene oxide production

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Hanna Perzon; [2015]
    Keywords : kemiteknik; chemical engineering; Chemistry;

    Abstract : This thesis has been performed in the ethylene oxide plant at Akzo Nobel in Stenungsund. Ethylene oxide is an important ethylene based intermediary compound. The primary use for ethylene oxide is in the manufacture of derivatives such as ethylene glycol, surfactants and ethanolamine’s. READ MORE

  3. 12. Noble metal catalysts for the hydrocracking of FT waxes

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Rodrigo Suárez París; [2012]
    Keywords : Hydrocracking; Fischer-Tropsch; Hexadecane; Platinum; Palladium;

    Abstract : Bifunctional catalysts consisting of palladium or platinum and supported on amorphous silica-alumina were prepared and tested in the hydrocracking of n-hexadecane, which is considered to be representative of n-paraffins in hydrocracker feeds. In addition to the evaluation of the  physicochemical properties, a comprehensive study on catalyst activity and selectivity has been conducted, in the full range of conversions. READ MORE

  4. 13. Material characterization for studying thermal deactivation of automotive SCR catalysts

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Jonas Granestrand; [2012]
    Keywords : ;

    Abstract : Thermalageing of the commercial selective catalytic reduction catalysts used inScania’s trucks was investigated using catalyst characterization techniques.Catalyst samples were oven-aged at 550 °C for up to 990 hours and investigatedwith nitrogen adsorption, oxygen chemisorption, X-ray fluorescence, X-raydiffraction, X-ray photoelectron spectroscopy and temperature-programmeddesorption of ammonia. READ MORE

  5. 14. Noble Metal Catalysts for the Hydrocracking of Fischer-Tropsch waxes

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Ibone Elorriaga de la Fuente; [2012]
    Keywords : hydrocracking; platinum; palladium; Fischer Tropsch; hexadecane;

    Abstract : Fischer-Tropsch synthesis enables the production of high quality diesel fuel from biomass derived synthesis gas. In order to increase the overall diesel yield, it is necessary to perform a subsequent hydrocracking of the long-chain linear paraffins. READ MORE

  6. 15. Cobalt supported on mesoporous silicas for the Fischer-Tropsch synthesis

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Esther Donado Sainz de la Maza; [2012]
    Keywords : Fischer-Tropsch; cobalt; titania; SBA-15; water;

    Abstract : This thesis deals with the study of several catalysts for the Fischer-Tropsch synthesis in the Biomass-To-Liquid process. In this work two groups of catalysts were tested. On the one hand, two series of catalysts with cobalt loadings of 6 and 12 wt% over SiO2 and some of them containing 5wt% of TiO2 were tested. READ MORE