Sökning: "chemical pretreatment"

Visar resultat 11 - 15 av 36 uppsatser innehållade orden chemical pretreatment.

  1. 11. Potential of Steam Pretreated Jerusalem Artichok Stem for Ethanol Production

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Adam Eliasson; [2017]
    Nyckelord :SSF; Simultaneous Saccharification and Fermentation; Lignocellulose; Bioethanol; Second generation Bioethanol; Steam Explotion; Jerusalem Artichoke; Enzymatic Hydrolysis; chemical engineering; kemiteknik; Technology and Engineering; Chemistry;

    Sammanfattning : To reach the goals set for the reduction of green house gas by the European Union the use of fossil fuels has to be reduced. To do this alternative fuels such as bioethanol have to substitute fossil fuels. LÄS MER

  3. 12. Pretreatment Methods for Manganese Containing Anode Sludge

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Johan Stenman; [2017]
    Nyckelord :Manganese; Zinc; Lead; Strontium; Reduction; Anode; Sludge; Slime; Metallurgy; Pyrometallurgy; Chamber; Rotary; Furnace; Agglomeration;

    Sammanfattning : This master thesis work examines whether it is possible to separate lead from an electrolytic sludge rich in manganese using pyrometallurgical treatment, and also attempts to determine the optimum process parameters for such a treatment. It also includes a theoretical study of the possible applications for lead and manganese, as well as thermodynamic calculations predicting the behaviour of the material at increasing temperatures. LÄS MER

  4. 13. Co-pretreatment of spruce and poplar for ethanol production - Effects of mixed feedstocks on pretreatment and enzymatic hydrolysis efficiency

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Hanna Jovanovic; [2017]
    Nyckelord :Biofuels; Bioethanol; Second generation bioethanol; Poplar; Spruce; Enzymatic hydrolysis; Pretreatment; Lignocellulose; Chemical Engineering; Kemiteknik; Technology and Engineering;

    Sammanfattning : Oil is very important for today’s society and the transportation sector is almost completely dependent on this material. Unfortunately, it affects the level of greenhouse gases negatively which in turn contribute to global warming. LÄS MER

  5. 14. Development of characterization methods for lignocellulosic biogas substrates

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Mirjam Victorin; [2016]
    Nyckelord :characterization methods; anaerobic digestion; straw; Biogas; lignocellulose; BMP; mechanical pretreatment; chemical engineering; kemiteknik; Technology and Engineering;

    Sammanfattning : As the need of environmentally friendly alternatives to fossil fuels is growing bigger, so is the need for knowledge and research around possible new raw materials that could serve that pur-pose. One discussed product is biogas. LÄS MER

  7. 15. Fosforåtervinning ur förbränningsaska från rötslam och rötrest

    Uppsats för yrkesexamina på grundnivå, KTH/Skolan för kemivetenskap (CHE)

    Författare :Martin Jonsson; [2015]
    Nyckelord :Fosforåtervinning; rötslam; rötrest; avloppsslam; tungmetaller; våtkemisk; termokemisk; kadmium; jordbruk; regelverk; ASH DEC-; CleanMAP-; PASH-; SEPHOS-; SESAL-Phos-; BioCon-processen;

    Sammanfattning : Fosfor är ett ändligt näringsämne som på senare tid uppmärksammats i samband med övergödning och bristen som råvara. Näringsämnet är livsviktigt för likväl människor som djur och växter och de brytbara fosforreserverna börjar ta slut. LÄS MER