Paraffin-based latent heat storing material composition and use thereof

A material composition and latent heat storage technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of unobtained heat storage materials and chemical irreversibility

Inactive Publication Date: 2015-04-29
JX NIPPON OIL & ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In addition, even in terms of melting point and / or latent heat as mentioned above, the two-component system of n-tetradecane (C14) and n-hexadecane (C16) is not chemically transformable and does not yield the desired heat storage material

Method used

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  • Paraffin-based latent heat storing material composition and use thereof
  • Paraffin-based latent heat storing material composition and use thereof
  • Paraffin-based latent heat storing material composition and use thereof

Examples

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Embodiment

[0144] The present invention will be described in further detail below with reference to Examples. However, the invention is in no way limited to the disclosed embodiments.

[0145] The alkane-based latent heat storage material composition was prepared by blending predetermined amounts of commercially available n-hexadecane, n-pentadecane, and n-tetradecane. The n-paraffins each have a purity of about 95% to 98%, and in general, n-paraffins include n-paraffins having a similar number of carbon atoms.

[0146] Regarding Examples and Comparative Examples, gas chromatography analysis was performed to investigate actual compositions based on peak areas, respectively, for reference purposes.

[0147] Actual composition values ​​determined from peak areas by gas chromatographic analysis are shown in Tables 1 to 3 in square brackets ([ ]). Tables 1 to 3 show some cases where the total number of values ​​in square brackets is not equal to 100, which indicates the detection of Peaks...

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Abstract

The present invention provides a paraffin-based latent heat storage material composition that includes, as a main component, a mixture of n-hexadecane, n-pentadecane, and, optionally, n-tetradecane, in which 1) the mixture has the n-hexadecane content of 68 mass% or more, the n-pentadecane content of 1 mass% to 23 mass%, and the n-tetradecane content of 23 mass% or less, where the total sum of the n-hexadecane content, the n-pentadecane content, and the n-tetradecane content is 100 mass%, 2) the composition has a melting point lower than that of n-hexadecane, and 3) the composition has a latent heat of fusion of 200 J / g or more.

Description

technical field [0001] The present invention relates to an alkane-based latent heat storage material composition and its use, in particular to an alkane-based latent heat storage material composition with a melting point lower than that of n-hexadecane and close to that of n-pentadecane (close to 10°C) and having a large latent heat of fusion Alkane-based latent heat storage material composition, and use thereof. Background technique [0002] There is an increasing demand for efficient use of excess energy to achieve energy savings and more efficient use of energy. As an effective solution to meet this need, various approaches have been used to realize heat storage by exploiting latent heat generated due to phase transition of substances. The method using latent heat is more advantageous than the method using only sensible heat without phase change in the following sense: Due to the ability of the method using latent heat to store a large amount of thermal energy with high ...

Claims

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Application Information

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IPC IPC(8): C09K5/06
CPCC09K5/063
Inventor 吉田瑞穗森永由浩堤俊幸
Owner JX NIPPON OIL & ENERGY CORP
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