Fatty acid eutectic mixtures and derivatives from non-edible animal fat as phase change materials
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comunitat-uji-handle2:10234/7035
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Title
Fatty acid eutectic mixtures and derivatives from non-edible animal fat as phase change materialsAuthor (s)
Date
2017Publisher
Royal Society of ChemistryISSN
2046-2069Bibliographic citation
GALLART-SIRVENT, Pau, et al. Fatty acid eutectic mixtures and derivatives from non-edible animal fat as phase change materials. RSC Advances, 2017, vol. 7, no 39, p. 24133-24139Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionAbstract
A set of compounds from non-edible fat waste was prepared and their thermal behavior was studied. The fat was hydrolyzed and crystallized in a simple and robust process to yield palmitic acid–stearic acid (PA–SA) ... [+]
A set of compounds from non-edible fat waste was prepared and their thermal behavior was studied. The fat was hydrolyzed and crystallized in a simple and robust process to yield palmitic acid–stearic acid (PA–SA) mixtures. The PA–SA mass ratios determined by GC-FID (gas chromatography-flame ionization detection) were similar to those reported for eutectic mixtures of PCMs (phase change materials). DSC (differential scanning calorimetry) results indicated that the melting and solidification temperatures were around 55 °C and 52 °C and the latent heat of the crystallized fractions measured was around 180 kJ kg−1. The thermal cycling reliability of the eutectic mixtures was also tested during 1000 melting/freezing cycles. The loss in melting and solidification enthalpies was below 14% in all mixtures showing a promising behavior for PCM applications. Additionally, the unsaturated fatty acids were recovered and transformed to threo-9,10-dihydroxystearic acid (DHSA) and some of their inorganic salts, which were analyzed by FT-IR (Fourier transform-infrared spectroscopy) and tested for the first time using the DSC technique. [-]
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RSC Advances, 2017, vol. 7, no 39, p. 24133-24139.Investigation project
The research leading to these results has received funding from the European Commission Seventh Framework Programme (FP/ 2007 – 2013) under grant agreement no. PIRSES-GA-2013-610692 (INNOSTORAGE) and from the European Union's Horizon 2020 research and innovation program under grant agreement no. 657466 (INPATH-TES). The authors would like to thank the Catalan Government for the quality accreditation given to their research groups GREA (2014 SGR 123), Agricultural Biotech- nology Research Group (2014 SGR 1296) and DIOPMA (2014 SGR 1543). This work has been partially funded by the Spanish government (CTQ2015-70982-C3-1-R (MINECO/FEDER), ENE2015-64117-C5-1-R (MINECO/FEDER) and ENE2015-64117- C5-2-R (MINECO/FEDER)). Dr Camila Barreneche would like to thank Ministerio de Economia y Competitividad de España for her grant Juan de la Cierva FJCI-2014-22886. Aran Solé would like to thank Ministerio de Economía y Competitividad de España for Grant Juan de la Cierva, FJCI-2015-25741.Rights
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