Search for dissertations about: "aromatic sulphur compounds"

Found 4 swedish dissertations containing the words aromatic sulphur compounds.

  1. 1. Development of ring-opening catalysts for diesel quality improvement

    University dissertation from Stockholm : Kemiteknik

    Author : Ulf Nylén; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ring opening; naphthenes; cetane number improvement; indan; light cycle oil LCO ; Pt-Ir catalyst; catalyst characterization; aromatic sulphur compounds; GC-SCD; distribution; analysis;

    Abstract : The global oil refining industry with its present shift inproduct distribution towards fuels such as gasoline and dieselwill most likely hold the fort for many years to come. However,times will change and survival will very much depend onprocessing flexibility and being at the frontiers of refiningtechnology, a technology where catalysts play leading roles. READ MORE

  2. 2. Ring-opening catalysts for cetane improvement of diesel fuels

    University dissertation from Stockholm : KTH

    Author : Ulf Nylén; Magali Boutonnet; Sven Järås; François Garin; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ring opening selective ; naphthenic structure; indan; light cycle oil LCO ; cetane; Pt-Ir catalyst; microemulsion; XPS; TPR; TEM; DRIFTS; sulphur analysis; GC-SCD; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Abstract : The global oil refining industry with its present product distribution essentially shifted towards fuels such as gasoline and diesel will most likely hold the fort for considerable time. However, conditions are changing and refinery survival will very much depend on long-term planning, process and product flexibility and being at the frontiers of refining technology, a technology where catalysts play leading roles. READ MORE

  3. 3. Naphthoxylosides Investigations into glycosaminoglycan biosynthesis

    University dissertation from Organic Chemistry, Lund University

    Author : Mårten Jacobsson; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organisk kemi; proteoglycan; Organic chemistry; nucleophilic aromatic substitution; thioether; glycosaminoglycan; xylosides; naphthoxylosides;

    Abstract : Glycosaminoglycans (GAGs) are members of a family of polysaccharide structures consisting mostly of repeating disaccharide units. Most GAGs are attached to specific serine residues in proteins to form proteoglycans (PGs). READ MORE

  4. 4. Catalytic conversion of LignoBoost Kraft lignin into liquid products in near-critical water

    University dissertation from Organic Chemistry, Lund University

    Author : Huyen Nguyen Lyckeskog; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LignoBoost; Catalytic conversion; Hydrothermal conversion; Bio-oil; Near-critical water; Lignin;

    Abstract : Lignin, one of the three main components of lignocellulosic biomass, is the second most abundant organic polymer found on Earth. Due to its aromatic nature, lignin is recognized as being a potential feedstock for producing transportation fuel and high value-added chemicals. READ MORE