Determination of specific heat capacity and standard molar combustion enthalpy of taurine by DSC

Han, Xue-Wei; Zhou, Cai-Rong; Shi, Xiaohua

doi:10.1007/s10973-011-1670-y

Cited by 19 publications

(4 citation statements)

References 8 publications

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“…The specific heat capacity of frying oil was determined by MDSC, heat flow signal from each sample was compared to that of a calibration sapphire of known specific heat (Han et al, ). A total of 5–10 mg of liquid sample was taken and sealed in an aluminum hermetic pan of DSC‐Q2000 (TA Instruments, Shanghai, China) for the analysis.…”

Section: Methodsmentioning

confidence: 99%

Specific Heat Capacity Measurements of Frying Oil Using Modulated Differential Scanning Calorimetry

Chen

Zhao

Liang

et al. 2019

J Americ Oil Chem Soc

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The specific heat capacity (c p ) of frying oils is of practical importance in engineering work associated with refining operations and the thermal resistance during application. The objective of this study was to use modulated differential scanning calorimetry (MDSC) to measure the specific heat capacity of frying oil. Samples were exposed to a cyclic heating profile that was generated by a linear heating rate while simultaneously superimposing a sinusoidally varying time-temperature wave. The c p variation of three commercial frying oils during frying was tested over a temperature range between 0 and 250 C, and the correlation of c p with triacylglycerol (TAG) polymer contents, total polar compounds (TPC), and polar fractions was studied. Results indicated that the specific heat capacity of frying oils increased linearly as temperature increased. During frying, c p had a positive relation with TAG polymers and TPC at the beginning, but finally decreased when frying ended. This was possibly associated with the variation of polar fractions as frying continued. The large molecular compounds and small molecular compounds of polar fractions were considered to contribute oppositely to c p , which led to its final decrease.

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Section: Methodsmentioning

confidence: 99%

Specific Heat Capacity Measurements of Frying Oil Using Modulated Differential Scanning Calorimetry

Chen

Zhao

Liang

et al. 2019

J Americ Oil Chem Soc

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“…α is the thermal diffusion coefficient of the PPS foam, which was measured at 25 °C with laser flash analysis using an LFA 467 thermal conductivity tester (Netzsch, Germany). C p is the specific heat capacity of PPS foam (J·g –1 K –1 ), which was determined by a 204 Phoenix differential scanning calorimeter (DSC, Netzsch, Germany) …”

Section: Methodsmentioning

confidence: 99%

“…C p is the specific heat capacity of PPS foam (J•g −1 K −1 ), which was determined by a 204 Phoenix differential scanning calorimeter (DSC, Netzsch, Germany). 38 2.3.10. Wetting Behavior Analysis.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Skinless Polyphenylene Sulfide Foam with Enhanced Thermal Insulation Properties Fabricated by Constructing Aligned Gas Barrier Layers for Surface-Constrained sc-CO₂ Foaming

Yuan

Zhao

2023

ACS Appl. Mater. Interfaces

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A solid skin layer inevitably forms on the foam surface for supercritical carbon dioxide (sc-CO2) foaming technology, leading to deterioration of some inherent properties of polymeric foams. In this work, skinless polyphenylene sulfide (PPS) foam was fabricated with a surface-constrained sc-CO2 foaming method by innovatively constructing aligned epoxy resin/ferromagnetic graphene oxide composites (EP/GO@Fe3O4) as a CO2 barrier layer under a magnetic field. Introduction of GO@Fe3O4 and its ordered alignment led to an obvious decrease in the CO2 permeability coefficient of the barrier layer, a significant increase of the CO2 concentration in the PPS matrix, and a decrease of desorption diffusivity in the depressurization stage, suggesting that the composite layers effectively inhibited the escape of CO2 dissolved in the matrix. Meanwhile, the strong interfacial interaction between the composite layer and the PPS matrix remarkably enhanced the heterogeneous nucleation of cells at the interface, resulting in elimination of the solid skin layer and formation of an obvious cellular structure on the foam surface. Moreover, by the alignment of GO@Fe3O4 in EP, the CO2 permeability coefficient of the barrier layer became much lower, and the cell density on the foam surface further increased with decreasing cell size, which was even higher than that of the cross section of foam, attributed to stronger heterogeneous nucleation at the interface than the homogeneous nucleation in the core region of the sample. As a result, the thermal conductivity of the skinless PPS foam reached as low as 0.0365 W/m·k, decreasing by 49.5% compared with that of regular PPS foam, showing a remarkable improvement in the thermal insulation properties of PPS foam. This work provided a novel and effective method for fabricating skinless PPS foam with enhanced thermal insulation properties.

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“…In a series of experimental works, Kumar et al (2003a) published the crystallisation characteristics of CO 2 , the vapour-liquid equilibrium data (Kumar et al, 2003b) and the reaction kinetics of CO 2 and potassium taurate (Kumar et al, 2003c). Following research studies covered the investigation of the physical and thermodynamic properties of potassium taurate (Han et al, 2012, Aronu et al, 2013, Wei et al, 2013, Wei et al, 2014. Various publications extending the knowledge on the solubility (Wei et al, 2013, Wei et al, 2014, Sanchez-Fernandez et al, 2013b, Sanchez-Fernandez and Goetheer, 2011, absorption kinetics and reaction rates of potassium taurate in the presence of CO 2 (Aronu et al, 2013) were published in the following years .…”

Section: Introductionmentioning

confidence: 99%

The effect of different process configurations on the performance and cost of potassium taurate solvent absorption

Conde

Moioli

Wiley

2019

International Journal of Greenhouse Gas Control

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The main method of capture of CO 2 in industry is the use of solvents for CO 2 absorption in postcombustion capture and the benchmark solvent is monoethanolamine (MEA). However, it presents a few disadvantages such as having a high energy requirement while also being corrosive and toxic.Potassium taurate (K-Tau) is a solvent with the potential to replace MEA because it has similar reaction rates, high cyclic loading, degradation resistant and most importantly, low energy requirement.The objective of this study was to compare and evaluate the effect of different process configurations on the reboiler duty for the precipitating potassium solvent absorption process.Utilising a baseline potassium taurate process, different process configurations were developed in Aspen Plus. These are a cold rich bypass (CRB) of the rich solvent stream to the stripper and a solidliquid separator. The results show that the modified configurations reduce the reboiler duty of the potassium taurate process by approximately 12% through the reduction in sensible heat and vaporization duty.

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Determination of specific heat capacity and standard molar combustion enthalpy of taurine by DSC

Cited by 19 publications

References 8 publications

Specific Heat Capacity Measurements of Frying Oil Using Modulated Differential Scanning Calorimetry

Specific Heat Capacity Measurements of Frying Oil Using Modulated Differential Scanning Calorimetry

Skinless Polyphenylene Sulfide Foam with Enhanced Thermal Insulation Properties Fabricated by Constructing Aligned Gas Barrier Layers for Surface-Constrained sc-CO₂ Foaming

The effect of different process configurations on the performance and cost of potassium taurate solvent absorption

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Determination of specific heat capacity and standard molar combustion enthalpy of taurine by DSC

Cited by 19 publications

References 8 publications

Specific Heat Capacity Measurements of Frying Oil Using Modulated Differential Scanning Calorimetry

Specific Heat Capacity Measurements of Frying Oil Using Modulated Differential Scanning Calorimetry

Skinless Polyphenylene Sulfide Foam with Enhanced Thermal Insulation Properties Fabricated by Constructing Aligned Gas Barrier Layers for Surface-Constrained sc-CO2 Foaming

The effect of different process configurations on the performance and cost of potassium taurate solvent absorption

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Product

Resources

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Skinless Polyphenylene Sulfide Foam with Enhanced Thermal Insulation Properties Fabricated by Constructing Aligned Gas Barrier Layers for Surface-Constrained sc-CO₂ Foaming