Sökning: "Bolivian Altiplano"

Visar resultat 11 - 14 av 14 avhandlingar innehållade orden Bolivian Altiplano.

  1. 11. Synthesis and applications of low silica zeolites from Bolivian clay and diatomaceous earth

    Författare :Javier Gustavo Garcia Mendoza; Johanne Mouzon; Niklas Hedin; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Zeolites; Synthesis; clay; diatomite; adsorption; ion exchange; Chemical Technology; Kemisk teknologi;

    Sammanfattning : The aim of the present work was to develop synthesis routes to produce synthetic zeolites with industrial attractiveness from non-expensive Bolivian raw materials, such as clays and diatomite. In particular, the work was focused on the synthesis of low-silica zeolites with the LTA and FAU structures. LÄS MER

  3. 12. Bioethanol Production from Lignocellulosic Materials: Some studies on Sugarcane Bagasse and Paja Brava

    Författare :Cristhian Carrasco; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Paja Brava Sugarcane Bagasse Saccharomyces cerevisiae Pichia stipitis;

    Sammanfattning : The commercial feasibility of ethanol production from biomass is dependent on the availability of lignocellulose in large amounts at low cost. Various kinds of agricultural residues are of interest, due to the fact that these feedstocks have well-established cultivation procedures already in place, as well as technology for harvest and transportation. LÄS MER

  4. 13. Lignocellulosic Ethanol Production: Studies on Sugarcane Bagasse, Paja Brava, Wheat Straw, Quinoa Stalks and Curupaú

    Författare :Cristhian Carrasco; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Steam pretreatment; ethanol production; SSCF; arabinosylated aromatics; SO2; H2SO4; sugarcane bagasse; paja brava; wheat straw; quinoa stalks; Anadenanthera colubrina;

    Sammanfattning : Lignocellulosic biomass refers to plant material that is composed mainly of cellulose, hemicellulose and lignin. These materials are today of large interest to researchers in the field of biofuel and bioenergy. LÄS MER

  5. 14. Characterization and preparation of lightweight silica based ceramics for building applications

    Författare :Edwin Escalera; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Engineering Materials;

    Sammanfattning : Bolivia is a country with considerable quantities of non-metallic resources. Some important deposits of these resources are located in the high and cold Altiplano as well as in the tropical areas. These deposits are not being exploited industrially but both areas have production of some ceramics in a handmade and empiric way. LÄS MER