| Issue |
MATEC Web Conf.
Volume 346, 2021
International Conference on Modern Trends in Manufacturing Technologies and Equipment (ICMTMTE 2021)
|
|
|---|---|---|
| Article Number | 02024 | |
| Number of page(s) | 8 | |
| Section | Materials Science | |
| DOI | https://doi.org/10.1051/matecconf/202134602024 | |
| Published online | 26 October 2021 | |
Electric Spark Alloying of Radiant Coils for Pyrolysis Furnaces
Kazan State Power Engineering University, 420066 Krasnoselskaya st., 51, Kazan, Russian Federation
* Corresponding author: elena_maister@mail.ru
Currently, the petrochemical industry uses furnaces to produce ethylene, the main element of which is radiant coils designed for the decomposition of straight-run gasoline into pyrolysis gas, which is the main product for producing ethylene. In radiant coils, the gasoline decomposition process must take place at a temperature of about 800 °C with a high heating rate in order to avoid coking of the coils. Heat is supplied by radiation from the inner lining of the furnaces heated by the flame of flat-flame gas burners. For radiant heat transfer to occur, the surface of the coils must have a high degree of blackness. This article presents the developed technology for coating heating surfaces with shungite and the results of increasing their emissivity to intensify radiant heat transfer. Measurements of the emissivity after electrospark alloying were carried out by the radiation method, according to which, according to Kirchhoff’s law, the emissivity is equal to the emissivity at equal temperatures.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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