Search for dissertations about: "Monoterpenes"

Showing result 11 - 15 of 37 swedish dissertations containing the word Monoterpenes.

  2. 11. The release of water and monoterpenes in the drying of wood chips

    Author : Anders Johansson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; drying; wood chips; terpene; release; emission; VOC; convective; superheated steam; air drying;

    Abstract : .... READ MORE

  4. 12. The release of monoterpenes during drying of wood chips : an experimental and theoretical study

    Author : Susanne Danielsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

  5. 13. Terpenes Emitted to Air from Forestry and the Forest Industry

    Author : Ann-Margret Hvitt Strömvall; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; gas chromatography; thermal desorption; anthropogenic terpene emissions; softwood; hydrocarbon emission; environment; phytotoxic photooxidants; adsorption sampling;

    Abstract : A major environmental concern with respect to hydrocarbon emissions is the formation of phytotoxic photooxidants. The work reported in this thesis focusses on the poorly studied anthropogenic terpene emissions from the industrial use of softwood. READ MORE

  6. 14. Oxidation of terpenes in indoor environments : A study of influencing factors

    Author : Linda Pommer; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Monoterpene; Ozone O3 ; Nitrogen dioxide NO2 ; Nitrogen oxide NO ; Relative humidity RH ; Modelling; Scrubber; Experimental design; Interaction; Volatile organic compounds VOC ; Sick buildings syndrome SBS ; Principal component analysis PCA ; Indoor air; Ventilation; Tenax TA; Sodium sulphite; Miljökemi; Environmental chemistry; Miljökemi; analytisk kemi; Analytical Chemistry;

    Abstract : In this thesis the oxidation of monoterpenes by O3 and NO2 and factors that influenced the oxidation were studied. In the environment both ozone (O3) and nitrogen dioxide (NO2) are present as oxidising gases, which causes sampling artefacts when using Tenax TA as an adsorbent to sample organic compounds in the air. READ MORE

  7. 15. Emissions of volatile organic compounds from wood

    Author : Karin Granström; Bengt Månsson; Ann-Margret Strömvall; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VOC; terpenes; drying; wood; emissions; spouted bed; Environmental engineering; Miljöteknik; Miljö- och energisystem; Environmental and Energy Systems;

    Abstract : The central aim of this thesis is to support the efforts to counteract certain environmental problems caused by emissions of volatile organic compounds. The purpose of this work was (1) to develop a method to establish the amount of emitted substances from dryers, (2) to determine the effect of drying medium temperature and end moisture content of the processed material on emissions of monoterpenes and other hydrocarbons, (3) to examine the emissions of monoterpenes during production of pellets, and (4) to examine the natural emissions from forests with an eye to implications for modelling. READ MORE