Search for dissertations about: "Ethanol"

Showing result 1 - 5 of 424 swedish dissertations containing the word Ethanol.

  1. 1. Ethanol pulping of reed canary grass

    University dissertation from Chalmers University of Technology

    Author : Helena Håkansson; Karlstads universitet.; Chalmers tekniska högskola.; Chalmers University of Technology.; [1995]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Engineering; Kemiteknik; Pulping; Nonwood plants; Reed canary grass; Ethanol; Organosolv pulping; Statistical analysis; pulping; nonwood plants; reed canary grass; ethanol; organosolv pulping; statistical analysis;

    Abstract : The aim of this study was to investigate the possibility of processing an agricultural crop grown in Sweden to usable pulp. A further purpose was to study ethanol pulping applied to a non-wood raw material.The first part of this thesis deals with the criteria for selecting a fibre crop for further studies. READ MORE

  2. 2. Ethanol from lignocellulose : Management of by-products of hydrolysis

    University dissertation from Karlstad : Karlstad University

    Author : Björn Alriksson; Karlstads universitet.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ethanol; Lignocellulose; Detoxification; Genetic engineering; Enzyme production; MEDICINE Chemistry Biochemistry; MEDICIN Kemi Biokemi; Kemi; Chemistry;

    Abstract : Fuel ethanol can be produced from lignocellulosic materials, such as residues from agriculture and forestry. The polysaccharides of lignocellulose are converted to sugars by hydrolysis and the sugars can then be fermented to ethanol using microorganisms. However, during hydrolysis a wide range of by-products are also generated. READ MORE

  3. 3. Fast Dynamic Processes in Solution Studied by NMR Spectroscopy

    University dissertation from Stockholm : Department of Materials and Environmental Chemistry, Stockholm University

    Author : Mária Šoltésová; Stockholms universitet.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nuclear magnetic resonance; Dynamics; Ethanol; Cryptophanes; Saccharides; Nukleární magnetická rezonance; dynamika; ethanol; kryptofan; sacharidy; Physical Chemistry; fysikalisk kemi;

    Abstract : Nuclear magnetic resonance (NMR) spectroscopy is capable to deliver a detailed information about the dynamics on molecular level in a wide range of time scales, especially if accompanied by suitably chosen theoretical tools. In this work, we employed a set of high-resolution NMR techniques to investigate dynamics processes in several weakly interacting molecular systems in solution. READ MORE

  4. 4. Continuous Ethanol Production from Dilute-acid Hydrolyzates: Detoxification and Fermentation Strategy

    University dissertation from Chalmers University of Technology

    Author : Ronny Purwadi; Högskolan i Borås.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biokemisk och bioteknisk processteknik; Biochemical process engineering; ethanol; dilute-acid hydrolyzate; furfural; HMF; overliming; continuous detoxification; S. cerevisiae; immobilization; flocculating yeast; continuous cultivation; serial bioreactor;

    Abstract : The production of fuel ethanol from cellulosic biomass is of growing interest around the world. Lignocellulosic residuals can be used to produce transportation fuel, with the overall process having little net production of greenhouse gases. READ MORE

  5. 5. Frame Analysis in Environmental Conflicts The case of ethanol production in Brazil

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Ester Galli; KTH.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Brazil; biodiversity; biofuel; CO2 emissions; environmental conflict; ethanol; frame; frame analysis; land use change; sugarcane; sugarcane cutters; sustainable energy;

    Abstract : Governments and policy-makers are currently dealing with some key issues as energy security in countries dependent on oil imports; global economic development, including increased food production; and controlling global climate change and greenhouse gas emissions. The perception that biofuel could solve these challenges simultaneously has led to the implementation of policy and regulatory mechanisms on the mandatory use of biofuels, resulting in a sharp increase in biofuel production and consumption. READ MORE