RT info:eu-repo/semantics/bachelorThesis
T1 Recuperación de furfural de hidrolizados de agua subcrítica mediante un proceso de purificación por adsorción
A1 Urbán Cedrón, Marina
A2 Universidad de Burgos. Departamento de Biotecnología y Ciencia de los Alimentos
K1 Furfural
K1 Subcritical water
K1 Corn waste
K1 Biorefinery
K1 Ingeniería química
K1 Chemical engineering
K1 Alimentos
K1 Food
AB Corn is the second most abundant cereal crop in the world. It generates a large amount ofagricultural residues (mainly stalks and leaves) which are commonly dumped in landfills,openly burned or used as fuelwood in boilers or ovens. This meant that, in 2010, 21 % ofgreenhouse gas emissions were due to the disposal of agricultural waste. In Spain, 819,553.8tonnes of vegetal waste from agriculture, livestock, fisheries and forestry were produced in2020. In addition, a total of 5.347 million tonnes of vegetal waste were produced in Castilla yLeón. The integration of agricultural waste as a raw material for other industrial processes isthe essential basis of the circular economy concept to reach the zero waste target. In thissense, the use of corn waste as lignocellulosic biomass can be a cost-effective and sustainablealternative. Lignocellulosic biomass contains three main components based on their masscontributions: cellulose, hemicellulose and lignin. The high hemicellulose content shown in thechemical composition of corn agricultural waste from stalks and leaves (26-21 %hemicellulose) means that they can be considered as a renewable raw material with highpotential for furfural production. Furfural is an aromatic aldehyde with a wide range of industrialapplications due to its high solvent capacity, its efficacy as a fungicidal agent (even at lowconcentrations) and as a raw material in the production of succinic acid, furoic acid, piperidineand 2-methylfuran. Furfural is obtained on a large scale from a sulphuric acid hydrolysisprocess using as feedstock lignocellulosic biomass from sugar cane bagasse or corncob,followed by a purification process by distillation/rectification. The hemicellulose hydrolysis withsubcritical water treatment and the adsorption as a purification step can be proposed as ecofriendly alternative technologies with potential to improve the furfural process performance. Inthis work, the recovery of furfural from subcritical water hydrolysates by an adsorption processwas studied. The effect of the adsorbent type, temperature, desorption agent and the presenceof impurities on the furfural adsorption has been examined. The most efficient adsorption agentfor furfural recovery was the hydrophobic resin amberlite XAD-4, with a recovery factor closeto 93 % when 16 % p/v of resin was used. The adsorption isotherms were determined atdifferent working temperature and 25 ºC was selected. 2 % p/v of the XAD-4 resin and adesorption aqueous solution with 0,2 M of NaCl were required for recovery 78 % of the initialfurfural of the subcritical water hydrolysate.
LK http://hdl.handle.net/10259/9142
UL http://hdl.handle.net/10259/9142
LA spa
NO El trabajo presentado en esta memoria de TFG ha sido desarrollado en el seno delGrupo de Investigación Biotecnología Industrial y Medioambiental, reconocido por laUBU (GIR-UBU BIOIND) y por la Junta de Castilla y León como Unidad de InvestigaciónConsolidada UIC-128, en el marco de los siguientes proyectos de investigación:TED2021-129311B-I00 - Tecnologías verdes basadas en el empleo de fluidospresurizados para valorizar biomasa lignocelulósica mediante la producción de furfural,financiado por el Ministerio de Ciencia e Innovación.PDC2022-133443-I00 - Diseño de un prototipo para la extracción de bioproductos conagua subcrítica, financiado por el Ministerio de Ciencia e Innovación.PID2020-116716RJ-I00 - Tecnologías de fluidos presurizados para la valorización desubproductos de la industria agroalimentaria: recuperación de pectina y otroscompuestos bioactivos de alto valor, financiado por la Agencia Estatal de Investigación.BU050P20 - Valorización de la fracción proteica de subproductos de la industriaagroalimentaria de Castilla y León mediante tecnologías de fluidos presurizados,financiado por la Junta de Castilla y León y el Fondo Europeo de Desarrollo Regional(FEDER).PID2019-104950RB-I00 - Valorización de subproductos marinos mediante tecnologíasde fluidos sub- y supercríticos para la obtención de biocompuestos valiosos, financiadopor la Agencia Estatal de Investigación.
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024