Search for dissertations about: "petroleum hydrocarbons"

Showing result 1 - 5 of 20 swedish dissertations containing the words petroleum hydrocarbons.

  2. 1. 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

  4. 2. Phytoremediation of soil contaminated with petroleum hydrocarbons and trace elements

    Author : Charlotte Marchand; Hogland William; Hijri Mohamed; Bramryd Torleif; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Petroleum Hydrocarbon; Trace Elements; Gentle Soil Remediation Options; Polycyclic Aromatic Hydrocarbon; Respirometry; Ecopile; Bacteria; Fungi; Miljövetenskap; Environmental Science;

    Abstract : The rapid urbanization and industrialization has led to an increase of disposal petroleum hydrocarbons (PHC) and trace elements (TE) into the environment. These pollutants are considered as the most toxic contaminants in the world due to their persistence in the environment, and the long range of toxicological effects for living beings. READ MORE

  5. 3. Experimental investigation of hydrocarbon formation and transformation under Earth´s upper mantle conditions

    Author : Anton Kolesnikov; Vladimir Kutcherov; Bertil Sundqvist; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; theory of deep abiotic petroleum origin; natural gas; hydrocarbons; methane; ethane; graphite; hydrogen; high pressure; high temperature; CONAC; BARS; diamond anvil cell; Raman; X-ray; gas chromatography; Engineering mechanics; Teknisk mekanik;

    Abstract : The theory of the abyssal abiotic petroleum origin considers oil and natural gas to begenerated in the Earth’s upper mantle. Hydrocarbons migrate further through the deep faults into the Earth’s crust, where they can form oil and gas deposits in any kind of rock in any kind of structural position. READ MORE

  6. 4. Applications of Solid-Phase Microextraction to Chemical Characterization of Materials Used in Road Construction

    Author : Bing Tang; Ulf Isacsson; Xiaohu Lu; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Asphalt release agents; Petroleum oils; Vegetable oils; Bituminous sealants; Bitumen; Emissions; Monocyclic aromatic hydrocarbons; Polycyclic aromatic hydrocarbons; Fourier Transform Infrared Spectroscopy - Attenuated Total Reflectance; Gel Permeation Chromatography; Mass Spectrometry; Gas Chromatography - Mass Spectrometry; Thermogravimetric Analysis; Headspace; Solid-phase microextraction; Calibration.; Building engineering; Byggnadsteknik;

    Abstract : Environmental and health aspects of road materials have been discussed for a long time, mostly regarding bitumen and bitumen fumes. However, just a few studies on other types of road materials have been reported. READ MORE

  7. 5. Energy savings for petroleum processing : Using mathematical models, optimal control and diagnostics

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

    Abstract : 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. READ MORE