Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

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ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 05 (123) 2014

Техносферная безопасность

Алексеев С. Г. кандидат химических наук, доцент, старший научный сотрудник Научно-исследовательский центр «Надежность и ресурс больших систем и машин» Уральского отделения Российской академии наук

Барбин Н. М. доктор технических наук, заведующий кафедрой Уральский государственный аграрный университет

Пищальников А. В. аспирант Научно-исследовательский центр «Надежность и ресурс больших систем и машин» Уральского отделения Российской академии наук

УДК:618.840

FLAMMABILITY AND EXPLOSIBILITY RISK OF ETHANOL AND ALCOHOL PRODUCTION IN FOOD BIOTECHNOLOGY

Temperature flammability and explosibility characteristics of the ethyl alcohol and products based on it are defined. Empirical dependences are suggested for forecasting a flash point (FP(closed cup) = –15,821nC + 87, FP(opened cup) = –191,55С–0,4346), a fire temperature (FT = 305,9С–0,5435) and an autoignition temperature (AIT = –50,883lnC + 694,5, where С is concentration of ethanol in volume %) for the studied objects. The interrelation between the autoignition temperature and the flash point is found (AIT = 3,37FP (closed cup) + 411.2). An influence of ambient temperatures on fire danger indicators of ethanol water solutions is studied. Measurements are executed at each stage of temperature influence: 0 (without influence) → 1 (7 days at −23 oС) → 2 (7 days at +20 oС) → 3 (7 days at +53 oС) → 4 (7 days at +20 oС) → 5 (7 days at –23 oС) → 6 (7 days at +20 oС) → 7 (7 days at +53 o С) → 8 (7 days at +20 oС). Changes of flash and fire temperatures have a sinusoidal character. In case of autoignition tempera- ture smooth changes also take place depending on an influence stage. An exception is made by 80 % solution which at 6-th stage shows a sharp jump of AIT. The found out changes of temperature indices of fire and explosion hazard of alcohol solutions are caused by rebuilding of cluster structures of the ethanol-water system. A system character of these changes specifies the presence of a chemical memory in ethanol solutions. The received results can be used by the staff of fire protection and design organizations.

Keywords:

alcohol, flammability and explosibility risk, flash point, fire temperature, autoignition temperature


References:

1. Egorova T. L., Klunova S. M., Zhivukhina E. A. Principles of biotechnology. M. : Academy Press, 2008.

2. State Standard R 52190-2003. Vodkas and liqueur-vodkaproducts. Terms and definitions. M. : Russian State Standard Publ.,

2005. 13 p.

3. Alexeev S. G., Barbin N. M., Alexeev K. S., Orlov S. A. Correlation of fire hazard indices with chemical structure. I Alcohols

// Fire & Explosion Safety. 2010. Vol. 19. № 5. P. 23–30.

4. Alexeev S. G., Barbin N. M., Alexeev K. S., Orlov S. A. Correlation of fire hazard indices with chemical structure. II Ketones.

P. 1 // Fire & Explosion Safety. 2011. Vol. 20. № 6. P. 8–15.

5. Alexeev S. G., Barbin N. M., Alexeev K. S., Orlov S. A. Correlation of fire hazard indices with chemical structure. IV Ethers //

Fire & Explosion Safety. 2011. Vol. 20. № 9. P. 9–16.

6. Alexeev K. S., Barbin N. M., Alexeev S. G. Correlation of fire hazard indices with chemical structure. V Carboxylic acids //

Fire & Explosion Safety. 2012. Vol. 21. № 7. P. 35–46.

7. Alexeev K. S., Barbin N. M., Alexeev S. G. Correlation of fire hazard indices with chemical structure. VI Aldehydes //

Fire & Explosion Safety. 2012. Vol. 21. № 9. P. 29–37.

8. Alexeev S. G., Barbin N. M., Smirnov V. V. Correlation of fire hazard indices with chemical structure. VII Nitroalkanes //

Fire & Explosion Safety. 2012. Vol. 21. № 12. P. 22–24.

9. Alexeev S. G., Alexeev K. S., Barbin N. M. Correlation of fire hazard indices with chemical structure. VIII Esters. P. 1 //

Fire & Explosion Safety. 2013. Vol. 22. № 1. P. 31–57.

10. Alexeev S. G., Avdeev A. S., Barbin N. M., Timashev S. A., Guryev Ye. S. Methods of explosion fire hazard of fuel and air

mixtures on an example for jetfuel RT. II. RD 03-409-01 // Fire & Explosion Safety. 2011. Vol. 20. № 1. P. 21–27.

11. Alexeev S. G., Barbin N. M., Avdeev A. S., Pishchalnikov A. V. About explosion and fire hazard of vodka // Fire & Explosion

Safety. 2009. Vol. 18. № 2. P. 20–23.

12. Alexeev S. G., Pishchalnikov A. V., Levkovets I. A., Barbin N. M. About fire hazard of aqueous alcoholic solutions //

Fire & Explosion Safety. 2010. Vol. 19. № 5. P. 31–33.

13. Alexeev S. G., Smirnov V. V., Barbin N.M. Flash point. P. I. Question history, definitions and test methods of determination

// Fire & Explosion Safety. 2012. Vol. 21. № 5. P. 35–41.

14. State Standard 12.1.044–89. Occupational Safety Standards System. Fire and Explosion Hazard of Substances and Materials.

Nomenclature of Indices and Methods of their Determination. 2001. NSIS PB, 2012. № 2 (48).

15. Korolchenko A. Ya. Burning and explosion process. M. : Pozhnauka, 2007. 266 p.

16. Reichardt C. Solvents and solvent effects in organic chemistry. M. : Mir, 1991. P. 26.

17. Nikolaev A. F. Modern view on water structure // Bulletin of the Saint Petersburg State Institute of Technology (Technical

University). 2007. № 1 (27). P. 110–115.

18. Voloshin V. P., Zheligovskaya E. A., Malenkov G. G., Naberukhin Yu. I., Tytnik D. L. Structures of nets of hydrogen

bridges and dynamics of water molecules in the condensed aqueous systems // Russian Chemical Journal. Journal of Russian

chemical society named by D. I. Mendeleev. 2001. Vol. XLV. № 3. P. 31–37.

19. Smirnov A. N., Lapshin V. B., Balyshev A. V., Lebedev I. M., Syroyeshkin A. V. Supramolecular complexes of water //

Investigated in Russia. 2004. Vol. 7. P. 413–421. URL : http://zhurnal.ape.relarn.ru /articles/2004/038.pdf (accessed date :

05 March 2014).

20. Berezina E. V., Godlevskiy V. A., Kuznetsov S. A. The molecular modeling of a structure of a lubricating layer // Friction,

wear, lubrication. 2008. Vol. 37. URL : http://www.tribo.ru/netcat_files/313/208/h_ef589ac7df6af4346e21abb688047403 (accessed

date : 21 July 2012).

21. Нu N., Schaefer D. W. Identification of ethanol hydrate complexes by multivariate curve resolution analysis of radial distribution

functions // Journal of Molecular Liquids. 2011. Vol. 159. № 3. P. 189–195.

22. Hu N., Cross K., Burikov S., Dolenko T., Patsaeva S., Schaefer D. W. Structurability : A collective measure of the structural

differences in vodkas // Journal of Agricultural and Food Chemistry. 2010. Vol. 58. № 12. P. 7394–7401.


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