Search for dissertations about: "hydrocarbons"

Showing result 1 - 5 of 380 swedish dissertations containing the word hydrocarbons.

  2. 1. The role of deep hydrocarbons in the global hydrocarbon budget

    Author : Daniil Kudryavtsev; Vladimir Kutcherov; Kostya Trachenko; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrocarbons; non-methane volatile hydrocarbons; carbon dioxide; methane; ethane; propane; butane; global warming; diamond-anvil cells; Raman spectroscopy; high pressure; high temperature; phase transition; Energy Technology; Energiteknik;

    Abstract : Nowadays, the issue of global warming and related environmental problems got widespread awareness among scientific society, politics, the industry as well as it has affected our everyday life. The reason for such a negative impact on the atmosphere is attributed mainly to human activities. READ MORE

  4. 2. Determination of Volatile Hydrocarbons in Urban Air

    Author : Lars Löfgren; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; arenes; hydrocarbons; environment; alkenes; motor traffic; photochemical oxidant formation;

    Abstract : In the complex hydrocarbon mixture in urban air, the alkenes and arenes are of particular interest with respect to impact on health and environment. Knowledge of hydrocarbon concentrations in urban air is essential for the assessment and prevention of health hazards and photochemical oxidant formation. READ MORE

  5. 3. Biodegradation of hydrocarbons in soil and water

    Author : Mikael Eriksson; KTH; []
    Keywords : Solid Phase Microextraction; SPME; biodegradation; bioremediation; bioavailability; monitoring; Volatile Organic Compounds VOC ; Screening; headspace sampling; polycyclic aromatic hydrocarbons; PAHs; aliphatic hydrocarbons; total petroleum hydrocarb;

    Abstract : Biodegradation of aliphatic and polycyclic aromatichydrocarbons was studied in soil and liquid cultures attemperatures ranging from -5 º C to 20 º C undervarious aerobic or anaerobic, nitrate reducing, conditions. Twocontaminated soils were used in the studies. READ MORE

  6. 4. Volatile hazardous hydrocarbons in road tunnels, cars and smoky rooms

    Author : Gunnar Barrefors; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; tobacoo smoke; urban air; benzene; road tunnels; ethene; adsorption sampling; hydrocarbons; butadiene; gas chromatography;

    Abstract : .... READ MORE

  7. 5. Volatile hydrocarbons in vapour and exhaust from alkylate-based and conventional petrol

    Author : Ulf Östermark; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; gas chromatography; petrol vapours; combustion; moped; lawn mower; petrol exhaust; alkalyte; hydrocarbons; 3-butadiene; adsorption sampling; benzene; ethene; 1;

    Abstract : .... READ MORE