Sökning: "petroleum products"

Visar resultat 1 - 5 av 53 avhandlingar innehållade orden petroleum products.

  1. 1. Assessing Sub-Lethal Impacts of Petroleum Compounds on Marine Benthic Systems

    Författare :Fredrik Lindgren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; subletala effekter; mikrobiellt samhälle; meiofauna; petroleum; PAH; bildanalys;

    Sammanfattning : Petroleum and its different distillates commonly end up in the marine environment. One source of these additions is discharges originating from shipping activities; accidents, ship wrecks, operational spills etc. LÄS MER

  3. 2. Energy savings for petroleum processing : Using mathematical models, optimal control and diagnostics

    Författare :Esin Iplik; Konstantinos Kyprianidis; Ioanna Aslanidou; Mehmet Mercangöz; Mälardalens universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : Petroleum products are widely used as an energy supply, and the total production capacity of petroleum refineries is quite high. In this thesis, an energy intensive refinery process, hydroprocessing, is selected and evaluated in terms of its energy loss contributors. Digital solutions are discussed and demonstrated to reduce losses. LÄS MER

  4. 3. Conversion of xylan into value-added products

    Författare :Reza Faryar; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; xylooligosaccharides; biosurfactant; prebiotic; xylan-based film; Lactobacillus brevis;

    Sammanfattning : Today’s high demand on finding sustainable energy sources, replacing petroleum-based products and the needfor healthier food alternatives have forced us to search for natural recoverable resources and explore their manyhidden applications. One such resource is xylan, which has gained much attention as possible raw material forvarious exploitations. LÄS MER

  5. 4. Assessing Sustainability and Guiding Development towards More Sustainable Products

    Författare :Gunilla Clancy; Chalmers tekniska högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; action competence; early-stage product development; team learning; wood-based material; role of designer; semi-structured interview; ecolabels; management systems; participatory action research; sustainability assessment;

    Sammanfattning : Companies need to develop more sustainable products that fit into future more sustainable markets. For this reason, the integration of sustainability considerations is needed in the early stages of product development, where a major part of the sustainability performance of a final product is determined. LÄS MER

  7. 5. Västsvensk petroleumindustri 1945-2000 : etablering och tillväxt

    Författare :Kurt Johnsson; Chalmers tekniska högskola; []
    Nyckelord :HUMANIORA; HUMANITIES; technological systems; petroleum industry; fuel refinery; innovation; institution; industrial network; petrochemicals;

    Sammanfattning : The purpose of the study has been to describe and analyse the establishment and growth of the petroleum industry in western Sweden during the second half of the twentieth century. Empirical data shows that the development of refineries has in large part been governed by environmental changes where belonging to an international concern with large financial resources, and a determined investment in FoU in order to be at the forefront, has been advantageous. LÄS MER