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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/10364

    Título
    Higher heating values of hydrotropic, hidrolytic and alkaline lignin from grape seeds and other types of biomass
    Autor
    Pinilla de Dios, María
    Director o Tutor
    García Serna, JuanAutoridad UVA
    Sobrón Grañón, FranciscoAutoridad UVA
    Editor
    Universidad de Valladolid. Escuela de Ingenierías IndustrialesAutoridad UVA
    Año del Documento
    2012
    Titulación
    Máster en Investigación en Ingeniería de Procesos y Sistemas Industriales
    Résumé
    Lignin is a natural polymer aromatic-based that exhibit interesting application both as a final product and as a source of energy and aromatic compounds. For decades lignin has been a discarded sub product of the pulp industry (black liquor) used basically as energy source for the pulp mill, creating a number of environmental problems. Currently a number of production processes are available, i.e. alkaline extraction, Kraft, organosolv, hydrotrope extraction, hydrolysis in sub and supercritical water, for instance. The Higher Heating Value (HHV) is a required parameter for the characterization of the biomass fractions. There are techniques to estimate HHV using the elemental composition and other parameters, but this is an indirect method and requires the availability of the analytical techniques. In this work we determine the HHV of three types of lignin, alkaline (19.82 kJ/g), hydrotropic (26.54 kJ/g) and from subcritical water hydrolysis (26.19 kJ/g), also cellulose (16.31 kJ/g), anhydrous glucose (15.64 kJ/g), grape seeds (18.84 kJ/g) and extracted grape seeds (23.78 kJ/g) by using an adiabatic combustion calorimeter and a combustion bomb. We propose the use of cellulose as agglomeration agent for the biomass and lignin, simplifying the pellet preparation process. Calibrations repeatability for a standard of Benzoic Acid was 1.9% and for a standard of Anhydrous Glucose was 3.4%. Finally, the average from calibrations was 2.6%.
    Materias (normalizadas)
    Biomasa
    Ingeniería de Sistemas
    Departamento
    Departamento de Ingeniería Química y Tecnología del Medio Ambiente
    Idioma
    spa
    URI
    http://uvadoc.uva.es/handle/10324/10364
    Derechos
    openAccess
    Aparece en las colecciones
    • Trabajos Fin de Máster UVa [7034]
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    TFM-I-144.pdf
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    Attribution-NonCommercial-NoDerivatives 4.0 InternationalExcepté là où spécifié autrement, la license de ce document est décrite en tant que Attribution-NonCommercial-NoDerivatives 4.0 International

    Universidad de Valladolid

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