Publication: Autohidrólisis y deslignificación organosolv de madera de Pinus radiata para la recuperación de hemicelulosas y lignina con aprovechamiento de la fracción celulósica por vía enzimática
Loading...
Files
Official URL
Full text at PDC
Publication Date
2018-09-11
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad Complutense de Madrid
Citations
Exportar
Abstract
La disminución de las reservas de combustibles fósiles, la creciente inquietud por el cambio climático y el incremento de las emisiones de gases de efecto invernadero están llevando a considerar nuevas fuentes de energía y productos químicos. Una de las alternativas más prometedoras es la biomasa y sus materiales derivados, enmarcándose su aprovechamiento dentro del concepto de biorrefinería.La biorrefinería consiste en el procesado sostenible de la biomasa para trasformarla en bioproductos (alimentos, piensos, materiales y productos químicos) y bioenergía (biocombustibles, electricidad y calor) según la definición de la Agencia Internacional de la Energía. Los diferentes tipos de biorrefinería se clasifican según sus aspectos característicos: las plataformas o productos intermedios, los productos finales, las materias primas y los procesos de conversión.La biomasa renovable más abundante y disponible a nivel mundial es la lignocelulósica, presentando como principal ventaja la no competencia con el suministro de alimentos. Sin embargo, una de sus desventajas es su naturaleza recalcitrante para ser convertida a productos de valor añadido. Para superar este inconveniente, en los últimos años se han estudiado diferentes pretratamientos para conseguir el fraccionamiento de los materiales lignocelulósicos en celulosa, hemicelulosa y lignina, y que puedan ser utilizados como precursores en biocombustibles y otros productos químicos...
The depletion of fossil fuel reserves, growing concern about climate change and increasing greenhouse gas emissions are leading to consider new sources of energy and chemicals. One of the most promising alternatives is the biomass and biomass derived materials, framing their use within the biorefinery concept.According to the definition of International Energy Agency (IEA), biorefining is the sustainable processing of biomass into bio-based products (food, feed, chemicals, and materials) and bioenergy (biofuels, power and/or heat). The features necessary to define a biorefinery are: plataforms, feedstock, products, and processes.Lignocellulosic biomass is the most abundant and available renewable feedstock. The use of these materials has the advantage that they do not competition with food production. However, the major disadvantage is the recalcitrance structure to be transformed into added value products. To overcome this drawback, different pretreatments have been studied in order to get the fractionation of lignocellulosic materials into their major constituents, like cellulose, hemicellulose, and lignin. Thus, they can be used as biofuels precursors and others chemicals...
The depletion of fossil fuel reserves, growing concern about climate change and increasing greenhouse gas emissions are leading to consider new sources of energy and chemicals. One of the most promising alternatives is the biomass and biomass derived materials, framing their use within the biorefinery concept.According to the definition of International Energy Agency (IEA), biorefining is the sustainable processing of biomass into bio-based products (food, feed, chemicals, and materials) and bioenergy (biofuels, power and/or heat). The features necessary to define a biorefinery are: plataforms, feedstock, products, and processes.Lignocellulosic biomass is the most abundant and available renewable feedstock. The use of these materials has the advantage that they do not competition with food production. However, the major disadvantage is the recalcitrance structure to be transformed into added value products. To overcome this drawback, different pretreatments have been studied in order to get the fractionation of lignocellulosic materials into their major constituents, like cellulose, hemicellulose, and lignin. Thus, they can be used as biofuels precursors and others chemicals...
Description
Tesis de la Universidad Complutense de Madrid, Facultad de Ciencias Químicas, Departamento de Ingeniería Química, leída el 29/06/2017