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Energy intensity of hydrocarbons in liquid and solid states

https://doi.org/10.32362/2410-6593-2021-16-4-273-286

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Abstract

Objectives. The increased use of unmanned aerial vehicles necessitates the search for jet fuels based on hydrocarbon materials with high energy intensity and physical density. The purpose of the work was to analyze the influence of various factors on the mass energy intensity of hydrocarbons. This analysis is required to substantiate the algorithm for locating energy-intensive CnHm structures.
Methods. Combustion energy was calculated using additive procedures. The calculations were performed using Microsoft Excel.
Results. During the analysis of the mass energy intensity of CnHm hydrocarbons, the m/n ratio was discovered to be the decisive factor for achieving high values of the mass energy intensity of hydrocarbons. The energy intensity decreases when moving from alicyclic to cyclic hydrocarbons, and this decrease is not compensated by the production of strain energy. An additive scheme that allows the molar volume of hydrocarbons to be predicted with sufficient accuracy is proposed for calculating the volumetric enthalpies of combustion.
Conclusions. According to the thermodynamic analysis, n-alkanes have the highest mass energy intensities. The technology for extracting n-alkanes from oil fractions is well developed, and a decrease in the hydrogen content in the fuel results in a decrease in the mass energy intensity. It appears improbable that the mass and volumetric energy intensities of hydrocarbons seem will reach their maximum values simultaneously. Hydrocarbons that have a high m/n value, 2, 3, 4, 5, 6-membered rings, and phenyl fragments may have relatively high mass and volumetric energy intensities at the same time.

About the Authors

G. J. Кабо
Belarusian State University
Belarus

Gennady J. Кабо, Dr. Sci. (Chem.), Professor, Professor of the Department of Physical Chemistry

14, Leningradskaya ul., Minsk, 220030

Scopus Author ID 56261611100


Competing Interests:

The authors declare no conflicts of interest.



L. A. Kabo
Belarusian State University
Belarus

Lubov A. Kabo, Student, Department of Functional Analysis and Analytical Economics

14, Leningradskaya ul., Minsk, 220030


Competing Interests:

The authors declare no conflicts of interest.



L. S. Karpushenkava
Belarusian State University
Belarus

Larisa S. Karpushenkava, Cand. Sci. (Chem.), Associate Professor, Associate Professor of the Department of Physical Chemistry

14, Leningradskaya ul., Minsk, 220030

Author ID 6504468775

ResearcherID AAB-8934-2020


Competing Interests:

The authors declare no conflicts of interest.



A. V. Blokhin
Belarusian State University
Belarus

Andrey V. Blokhin, Dr. Sci. (Chem.), Professor, Head of the Department of Physical Chemistry

14, Leningradskaya ul., Minsk, 220030

Scopus Author ID 7101971167

ResearcherID AAF-8122-2019


Competing Interests:

The authors declare no conflicts of interest.



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Supplementary files

1. Dependence of the mass (specific) enthalpy of combustion of hydrocarbons
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2. This is to certify that the paper titled Energy intensity of hydrocarbons in liquid and solid states commissioned to us by Gennady J. Kabo, Lubov A. Kabo, Larisa S. Karpushenkava, Andrey V. Blokhin has been edited for English language and spelling by Enago, an editing brand of Crimson Interactive Inc.
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  • The influence of molecular structures on the mass energy CnHm consumption of hydrocarbons was investigated.
  • Additive schemes that allow the mass energy intensity and molar volume of hydrocarbons of various structures in the solid and liquid states to be predicted with sufficient accuracy were proposed.

For citation:


Кабо G.J., Kabo L.A., Karpushenkava L.S., Blokhin A.V. Energy intensity of hydrocarbons in liquid and solid states. Fine Chemical Technologies. 2021;16(4):273-286. https://doi.org/10.32362/2410-6593-2021-16-4-273-286

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