Fatty acid eutectic mixtures and derivatives from non-edible animal fat as phase change materials

Gallart-Sirvent, Pau; Martín, Marc; Villorbina, Gemma; Balcells, Mercè; Solé, Aran; Barreneche, Camila; Cabeza, Luisa F.; Canela‐Garayoa, Ramon

doi:10.1039/c7ra03845c

Cited by 50 publications

(20 citation statements)

References 39 publications

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“…Additionally, this extraction methodology allows the reuse of the biocatalyst. whereas the latter presented the best selectivity towards diol moiety formation (3.40 ppm, m, H-COH) [4].…”

Section: Bio-catalytic Preparation Of Dhses: Esters From Methanol To mentioning

confidence: 98%

“…However, the melting temperatures of these four alcoxyl stearates were nearly 30 ºC lower than their DHSE counterparts. Indeed, to prepare stearates as On the other hand, some of the described commercial fatty acid bio-based PCMs [11,12,14] and the bio-based eutectic mixture from non-edible animal fat prepared by some of the authors [4] presented latent heats of solidification ranging 150 kJ•kg -1 [11,12,14] to 180 kJ•kg -1 [4].…”

Section: Thermal Properties and Cycling Reliability Of The Dhses Frommentioning

confidence: 99%

“…Fatty non-edible animal parts comprise mainly triacylglycerides, which contain saturated and unsaturated fatty acids and glycerol. These fats are an interesting source to prepare biodiesel [3] and recently they have been used to prepare bio-based phase change materials (PCMs) [4].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, we described a procedure using conventional chemistry to transform non-edible animal fat into palmitic-stearic acid eutectic mixtures and DHSA. These products were also analyzed by DSC analysis with distinct behavior, on the one hand, palmitic-stearic acid eutectic mixtures shown good thermal properties, whereas that DHSA presented low chemical stability, presumably caused by the formation of estolides between the diol and fatty acid moieties [4]. In order to afford PCMs from DHSA, the esterification of DHSA into alkyl threo-9, 10dihydroxystearates (DHSEs) should prevent the estolide formation during DSC analysis.…”

Section: Introductionmentioning

confidence: 99%

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Combining biocatalysts to achieve new phase change materials. Application to non-edible animal fat

Gallart-Sirvent

Martín

Solé

et al. 2018

Molecular Catalysis

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The thermal properties of various alkyl threo-9, 10-dihydroxystearates (DHSEs) prepared from non-edible fat were studied. Non-edible animal fat was hydrolyzed in a 93% yield with R. oryzae resting cells. Crude unsaturated fatty acids were recovered from the matter liquor resulting from a crystallization performed to achieve the saturated fatty acids. These unsaturated free fatty acids were epoxidized with 30% H 2 O 2 using immobilized Candida antarctica Lipase-B *Manuscript Click here to view linked References (CAL-B) as biocatalyst. The epoxy ring was cleaved with hot water in the presence of tertbutanol (t-BuOH). Pure threo-9, 10-dihydroxystearic acid (DHSA) from animal fat was recovered by crystallization (51% yield). Subsequently, DHSA was esterified in -limonene using biocatalysts yielding twelve DHSEs (58-90% yield). Differential scanning calorimetry (DSC) analysis of these esters revealed potential latent heats ranging from 136.83 kJ•kg-1 to 234.22 kJ•kg-1 and melting temperatures from 52.45 ºC to 76.88 ºC. Finally, the compounds with enthalpies above 200 kJ•kg-1 were subjected to 100 and 1000 thermal cycles. These experiments showed that these products present good thermal reliability.

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“…Additionally, this extraction methodology allows the reuse of the biocatalyst. whereas the latter presented the best selectivity towards diol moiety formation (3.40 ppm, m, H-COH) [4].…”

Section: Bio-catalytic Preparation Of Dhses: Esters From Methanol To mentioning

confidence: 98%

Section: Thermal Properties and Cycling Reliability Of The Dhses Frommentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Combining biocatalysts to achieve new phase change materials. Application to non-edible animal fat

Gallart-Sirvent

Martín

Solé

et al. 2018

Molecular Catalysis

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“…However, the melting temperature of single fatty acids is high and sometimes difficult to meet the practical application requirement. It is found that the melting temperature can be lowered down to an appropriate value by mixing two or more than two kinds of fatty acid to produce a binary or polynary eutectic mixture . Apart from fatty acids, saturated alcohols are also a kind of important phase change material and have also been widely studied as PCM .…”

Section: Introductionmentioning

confidence: 99%

Preparation and Thermal Properties of 1‐Hexadecanol‐Palmitic Acid Eutectic Mixture/Activated Carbon Composite Phase Change Material for Thermal Energy Storage

Wang

Jia

et al. 2019

ChemistrySelect

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In this study, a new kind of 1-hexadecanol-palmitic acid (HD-PA) binary eutectic mixture and the composite phase change materials (PCMs) composed of HD-PA absorbed into activated carbon (AC) pores with different mass percentage of 50, 55, 60, and 65% were prepared by vacuum impregnation method. The chemical structural, thermal stability and thermal durability of HD-PA/AC composite phase change materials (CPCMs) with different mass fraction of HD-PA was characterized by Fourier transformation infrared (FT-IR) spectrometer, differential scanning calorimetry (DSC) and thermogravimetric analyzer (TGA), respectively. The specific surface area of AC were determined to be 760 m 2 g À 1 and abundant mesopores and micropores with the sizes at 1.8 and 0.6 nm were observed according to the N 2 adsorption-desorption measurement. DSC results showed that the onset melting temperature and latent heat of novel HD-PA eutectic were 50.2°C and 226.6 J g À 1 , respectively. The addition of AC to the PCM of binary HD-PA eutectic can enhance its thermal stability, durability and thermal energy storage-release rate. The form-stable HD-PA/AC CPCM can be used as energy storage materials in many fields owing to its good thermal properties and chemical stability.Keywords: binary eutectic mixture · energy storage · 1hexadecanol · palmitic acid · phase change material · thermal properties

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Thermal characterization of phase‐changing materials as stabilized thermal energy storage materials in impregnated wood

Can

2022

Energy Storage

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In this study, a palmitic acid-shellac (PA/Sh) mixture was impregnated into spruce wood. Subsequently, the properties of the modified wood were investigated by thermal gravimetric analysis, differential scanning calorimetry, Fourier-transform infrared (FT-IR) spectroscopy, and scanning electron microscopy (SEM). After the impregnation, 10% to 25% weight gains were obtained in the samples. The FT-IR result demonstrated the physical composition of the PA/Sh mixture. The modified wood samples PA, PASh2, and PASh3 had phase transition temperatures of 59.33 C, 58.37 C, and 58.76 C, and highlatent heat of 27.54, 10.73, and 14.73 J/g, respectively. The modified wood exhibited high thermal stability because the working temperature was much lower than the decomposition temperature. The SEM analysis showed that the wood microscale pores were filled with PA/Sh. The results obtained determined that the property of storing and releasing solar thermal energy of the modified wood rendered it suitable for practical applications.

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Fatty acid eutectic mixtures and derivatives from non-edible animal fat as phase change materials

Abstract: Non-edible animal fat waste as a source of phase change materials.

Cited by 50 publications

References 39 publications

Combining biocatalysts to achieve new phase change materials. Application to non-edible animal fat

Combining biocatalysts to achieve new phase change materials. Application to non-edible animal fat

Preparation and Thermal Properties of 1‐Hexadecanol‐Palmitic Acid Eutectic Mixture/Activated Carbon Composite Phase Change Material for Thermal Energy Storage

Thermal characterization of phase‐changing materials as stabilized thermal energy storage materials in impregnated wood

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