2026-04-18T09:23:52Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/108842025-09-22T08:56:56Zcom_10259_9397com_10259_5087com_10259_2728col_10259_9398

Ruiz Pérez, María Olga 503 500 0000-0003-0399-092X Blanco Alcalde, Beatriz 597 500 0000-0002-1703-6718 Herrero Camargo, Sara 149ba49c-7c58-4c61-aa24-8e89a1e97e26 600 Universidad de Burgos. Facultad de Ciencias 3e42cd0a-b2f8-4c61-b091-594b935b2f7d 500 2025-09-18T06:55:20Z 2025-09-18T06:55:20Z 2024-06-18 https://hdl.handle.net/10259/10884 The valorisation of solid agricultural waste remains a current challenge. The concept of a biorefinery arises from increasing concerns about environmental issues, as it is an efficient and sustainable way to produce valuable organic compounds from lignocellulosic byproducts, thereby maximizing their value. Corn is the most widely produced cereal globally, and Spain contributes approximately four million tons. Additionally, it is estimated that by 2030, global production of this cereal will increase by 160 million tons, reaching 1.3 billion tonnes. Corn stover has a high content of hemicellulose, cellulose, and lignin, making it a good raw material for the production of furfural. Furfural is a heterocyclic organic compound identified as a platform chemical with various subsequent applications: as an extractant, fungicide, raw material in the synthesis of various chemicals, and as a flavour and fragrance enhancer in the food industry. It is also a precursor to many other compounds of interest, such as succinic acid and furfuryl alcohol. Furfural is produced from the hydrolysis of hemicellulose, generally through acid hydrolysis and dehydration of xylose. This study analysed the selective recovery of furfural from corn stover subcritical water hydrolysates using an adsorption/desorption process, which are more environmentally and economically sustainable hydrolysis and purification methods. Specifically, this work evaluated the effect of the type of adsorbent, the mass/volume ratio, and the presence of impurities (mainly xylose and carboxylic acids) on the furfural adsorption yield, as well as compared batch and fixed bed treatments. After the study, under optimal working conditions (5 g of XAD-4, 75 ml of furfural hydrolysate, adsorption process at 25°C for 60 min, desorption process at 50°C for 30 min, and in a fixed bed), the results showed that the most selective adsorbent for furfural recovery was the Amberlite XAD-4 polymeric resin, with a furfural recovery from the corn waste subcritical water hydrolysate of 66.2% and a purity close to 91.3%. The valorisation of solid agricultural waste remains a current challenge. The concept of a biorefinery arises from increasing concerns about environmental issues, as it is an efficient and sustainable way to produce valuable organic compounds from lignocellulosic byproducts, thereby maximizing their value. Corn is the most widely produced cereal globally, and Spain contributes approximately four million tons. Additionally, it is estimated that by 2030, global production of this cereal will increase by 160 million tons, reaching 1.3 billion tons. Corn agricultural waste, such as stalks and leaves, have a high content of hemicellulose, cellulose, and lignin, making them a good raw material as biomass for the production of furfural. Furfural is a heterocyclic organic compound identified as a platform chemical with various subsequent applications: as an extractant, fungicide, raw material in the synthesis of various chemicals, and as a flavor and fragrance enhancer in the food industry. It is also a precursor to many other compounds of interest, such as succinic acid and furfuryl alcohol. Furfural is produced from the hydrolysis of hemicellulose, generally through acid hydrolysis and dehydration of xylose.This study analyzed the selective recovery of furfural from corn waste subcritical water hydrolysates using an adsorption/desorption process, which are more environmentally and economically sustainable hydrolysis and purification methods. Specifically, this work evaluated the effect of the type of adsorbent, the mass/volume ratio, and the presence of impurities (mainly xylose and carboxylic acids) on the furfural adsorption yield, as well as compared batch and fixed bed treatments. After the study, under optimal working conditions (5 g of XAD-4, 75 ml of furfural hydrolysate, adsorption process at 25°C for 60 min, desorption process at 50°C for 30 min, and in a fixed bed), the results showed that the most selective adsorbent for furfural recovery was the Amberlite XAD-4 polymeric resin, with a furfural recovery from the corn waste subcritical water hydrolysate of 66.2% and a purity close to 91.3%. application/pdf spa Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Furfural Adsorción Agua subcrítica Residuos de maíz Biorrefinería Adsorption subcritical water Corn waste Biorefinery Ingeniería Química Alimentos Chemical Engineering Food Estudios de adsorción y desorción de furfural empleando carbón activo y Amberlite XAD-4 info:eu-repo/semantics/bachelorThesis info:eu-repo/semantics/acceptedVersion THUMBNAIL Herrero_Camargo_Sara-TFG.pdf.jpg Herrero_Camargo_Sara-TFG.pdf.jpg IM Thumbnail image/jpeg 3999 https://riubu.ubu.es/bitstream/10259/10884/4/Herrero_Camargo_Sara-TFG.pdf.jpg 221635873d1a9d8f78dbaf86db691a9b MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 1362 https://riubu.ubu.es/bitstream/10259/10884/3/license.txt 5d013bfa6e473ff0db22cd82a4d71a70 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/10884/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Herrero_Camargo_Sara-TFG.pdf Herrero_Camargo_Sara-TFG.pdf application/pdf 615499 https://riubu.ubu.es/bitstream/10259/10884/5/Herrero_Camargo_Sara-TFG.pdf 699a3824a1c582b8ec291aab64edef39 MD5 5 10259/10884 oai:riubu.ubu.es:10259/10884 2025-09-22 10:56:56.754 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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