Experimental and analytical studies of thermal spontaneous combustion of substances of heavy oil fraction distilling (fuel oil, bitumen, tar) when contacting with a developed surface of non-flammable fibrous (such as slag and glass wool, fiberglass) material of thermal insulation of a tank have been conducted based on the example of bitumen. Experimental studies and calculations have shown that on the developed surface of fibrous materials impregnated with bitumen, the process of bitumen decomposition involving the generation of thermal and thermal-oxidative degradation products of heavy hydrocarbons able to auto-ignite (ignite spontaneously on the developed non-flammable fibrous surface) or ignite in case of availability of ignition source is possible under certain conditions at relatively low temperatures (~120 °С and lower), i.e., at temperatures close to the maximum process temperature (~180 °С) and significantly lower temperatures compared to the temperature of spontaneous ignition of bitumen (~330–380 °С). The calculations of thermal flows have shown how (via what methods) the thermal conductivity of thermal insulation impregnated with bitumen can be improved and, thereby, the probability of its spontaneous combustion can be reduced or prevented. Based on experimental and analytical studies and calculations, the proposals for preventing spontaneous combustion of thermal insulation materials of storage tanks for bitumen and other hydrocarbons of high distillation of petroleum products have been formulated.
2. GOST 12.1.044—1989. Fire and explosion hazard of substances and materials. Nomenclature of indices and methods of their determination. Available at: https://docs.cntd.ru/document/1200004802 (accessed: January 31, 2024). (In Russ.).
3. Melikhov A.S. Research of smoldering distribution process and the conditions of process shutdown inside the array of gas-permeable fine material. Pozharnaya bezopasnost = Fire Safety. 2017. № 4. рр. 74–89. (In Russ.).
4. Sereda T.G., Kushnareva O.V., Kostarev S.N., Ustinov A.I., Mikhaylov M.A. Reduction of explosion and fire hazard of waste deposit. Pozharnaya bezopasnost = Fire Safety. 2008. № 3. рр. 84–89. (In Russ.).
5. Taubkin S.I. Basics of fire protection for cellulose materials. Мoscow: Izd-vo Ministerstva kommunalnogo khozyaystva RSFSR, 1960. 347 р. (In Russ.).
6. Baratov A.N., Molchadskiy I.S. Combustion during fires. Мoscow: VNIIPO, 2011. 502 р. (In Russ.).
7. Melikhov A.S., Baratov A.N., Vogman L.P. Model of the spread of smoldering front inside finely dispersed gas-permeable material and the conditions of smoldering source extinguishing. Aktualnye problemy pozharnoy bezopasnosti: tezisy dokl. XXI Mezhdunar. nauch.-prakt. konf. (Current problems of fire safety: abstracts of reports of the 21st International Scientific and Practical Conference). Мoscow: VNIIPO, 2009. рр. 35–40. (In Russ.).
8. Vogman L.P. Fire hazard of process of smouldering of combustible organic substances and materials. Pozharnaya bezopasnost = Fire Safety. 2018. № 3. рр. 39–48. (In Russ.).
9. Gorshkov V.I. Auto-ignition of substances and materials. Мoscow: VNIIPO, 2003. 446 с.
10. Taubkin S.I. Fire and explosion. Features of examination. Мoscow: VNIIPO, 1999. 599 р. (In Russ.).
11. Aldushin A.P., Braverman B.Sh. Finger effect during filtration combustion. Tezisy dokladov. ХIV Cimpozium po goreniyu i vzryvu. (Abstracts of reports. The 14th Combustion and Explosion Symposium). Chernogolovka: RAN, 2008. р. 11. (In Russ.).
12. Salganskiy E.A., Polianchuk E.V., Manelis G.B. Pyrolysis of polymeric materials in the filtration combustion wave. Tezisy dokladov. ХIV Cimpozium po goreniyu i vzryvu. (Abstracts of reports. The 14th Combustion and Explosion Symposium). Chernogolovka: RAN, 2008. р. 160. (In Russ.).
13. Bespalov M.S., Oseledets E.V., Pronin M.V. Fokin M.V., Bobysheva T.Yu., Moleva L.K., Gazieva T.N. Emission of contaminating substances into the atmosphere during heating of bitumen. Ekologiya proizvodstva = Ecoindustry. 2009. № 9. рр. 33–35. (In Russ.).
14. Koshmarov Yu.A., Bashkirtsev M.P. Thermodynamics and heat transfer in firefighting. Мoscow: VIPTSh MVD SSSR, 1987. 444 р. (In Russ.).
15. Mitrofanov A.S., Syrbu S.A. The study of corrosion rate for the «Stal 3» steel brand in the air-vapor medium of sour crude oil. Aktualnye problemy obespecheniya pozharnoy bezopasnosti i zashchity ot chrezvychaynykh situatsiy: sb. materialov V Vseros. nauch.-prakt. konf. (Current problems of fire safety and protection against emergencies: proceedings of the 5th All-Russian Scientific and Practical Conference). Zheleznogorsk: FGBOU VO Sibirskaya pozharno-spasatelnaya akademiya GPS MChS Rossii, 2022. рр. 58–61. (In Russ.).
16. SP 131.13330.2018. Building climatology. Available at: https://docs.cntd.ru/document/554402860?ysclid=lty2iwl91h599538477 (accessed: January 31, 2024). (In Russ.).