Author, as appears in the article.: Guarin, Carlos; Gavila, Llorenc; Constanti, Magda; Medina, Francesc;
Department: Enginyeria Química
URV's Author/s: Constantí Garriga, Magdalena / Medina Cabello, Francisco
Keywords: Microwave Lactic acid Hydrotalcites Cellulose
Abstract: The depletion of oil reserves pushes the development of platform chemicals from biomass, as an alternative for the sustainable progress of the chemical industry. Cellulose, which is the main component of biomass, is widely studied for its conversion into value-added chemicals. However, due to its recalcitrant nature, hydrolysis of cellulose with solid alkali catalysts still remains a challenge. Thus, the conversion of cellulose using hydrotalcites as catalyst was investigated. For this purpose, hydrotalcites were deposited on cellulose fibers and their catalytic behavior was tested at 180 °C, for 1 h, using microwave reactor (300 W). Hydrotalcites proved to efficiently convert cellulose into value-added products such as lactic, acetic, formic and glycolic acids. Catalysts were characterized by X-Ray diffraction, Fourier transform infrared spectroscopy, environmental scanning electron microscopy and BET surface area analysis. The best conversion yield of up to 30% was obtained over calcined hydrotalcites at 400 °C. The basic properties of the hydrotalcite materials have an important effect on the activity. Hence, in this study hydrotalcites are presented as a promising catalyst for cellulose hydrolysis.
Thematic Areas: Química Interdisciplinar Industrial and manufacturing engineering Geociências General chemistry General chemical engineering Farmacia Engineering, chemical Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciência de alimentos Chemistry (miscellaneous) Chemistry (all) Chemical engineering (miscellaneous) Chemical engineering (all) Biotecnología Astronomia / física Applied mathematics
ISSN: 00092509
Author's mail: magdalena.constanti@urv.cat francesc.medina@urv.cat
Author identifier: 0000-0002-3547-4199 0000-0002-3111-1542
Last page: 91
Record's date: 2024-09-07
Journal volume: 179
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/pii/S0009250918300149
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Chemical Engineering Science. 179 83-91
APA: Guarin, Carlos; Gavila, Llorenc; Constanti, Magda; Medina, Francesc; (2018). Impact of cellulose treatment with hydrotalcites in hydrothermal catalytic conversion. Chemical Engineering Science, 179(), 83-91. DOI: 10.1016/j.ces.2018.01.014
Article's DOI: 10.1016/j.ces.2018.01.014
Entity: Universitat Rovira i Virgili
Journal publication year: 2018
First page: 83
Publication Type: Journal Publications