Essays about: "steam explosion"

Showing result 11 - 14 of 14 essays containing the words steam explosion.

  1. 11. Pretreatment technologies to increase the methane yields by anaerobic digestion in relation to cost efficiency of substrate transportation

    University essay from Tema vatten i natur och samhälle

    Author : Ylva Borgström; [2011]
    Keywords : biogas; steam explosion; extrusion; dewatering; feathers; anaerobic digestion; Biogas; ångexplosion; extrusion; avvattning; fjädrar; rötning;

    Abstract : Med ett växande energibehov i världen, sinande energikällor i form av fossila bränslen och en miljö som vi under en längre tid har förorenat behövs det nya energiformer som är mer långsiktiga och framförallt miljövänliga. En sådan energiform är biogas. Biogasprocessen är dock inte helt optimerad. READ MORE

  3. 12. Combustion characteristics of steam-exploded biomass pellets

    University essay from KTH/Energi- och ugnsteknik

    Author : Maria Gabriela Ponce Valle; [2011]
    Keywords : biomass combustion; pretreatment; steam-exploded pellets;

    Abstract : Currently pelletized woody biomass is widely used as a fuel in thermal applications toaccelerate the global transition to renewable energy. Fuel upgrade is one of the key factorsto improve energy conversion processes. Woody biomass can be fractionated into its mainconstituents by steam explosion. READ MORE

  4. 13. Fermentation of lignocellulosic material by the alternative industrial ethanol yeast Dekkera bruxellensis

    University essay from SLU/Dept. of Microbiology

    Author : Emily South; [2010]
    Keywords : lignocellulosic mateial; steam explosion; aspen sawdust; enzymatic saccharification; ethanol production; Saccharomyces cerevisiae J672; Dekkera bruxellensis CBS 11269;

    Abstract : Bioethanol is one alternative energy fuel that can be produced from different types of biomass. Second generation bioethanol comes from fermentation of lignocellulosic material and can be seen as a more environmental friendly alternative as e.g. forest residues and agricultural by-products are used. READ MORE

  5. 14. Thermal pre-treatment of cellulose rich biomass for biogas production

    University essay from SLU/Dept. of Microbiology

    Author : Pauline Demetriades; [2008]
    Keywords : biogas production potential; degradation rate; degradation potential; thermal pre-treatment; steam explosion; autohydrolysis; cellulose; lignin; oat straw; meadow grass; aspen; spruce; wet grain residue; batch experiment;

    Abstract : Anaerobic digestion is one possible method to produce bioenergy from cellulose rich materials but the process techniques still need refinements to facilitate the production process. In this work the biogas potential from six different plant materials was evaluated and what effect a thermal pre-treatment had on this potential. READ MORE