Abstract
One of the main indicators of the technological process perfection is the exhaust streams material and energy resources utilization degree. This is especially important for high-temperature processes with a high external energy consumption level in metallurgy, glass, mineral wool, etc. Traditional methods of exhaust heat utilizing to burner air heating by various recuperators designs provide a no more than 60 % heat recovery rate, mainly because of the limited recuperators materials heat resistance. Preliminary theoretical calculations and some available practical implementations experience indicate that with high-temperature exhaust gases (> 800 °C) the thermochemical method of their heat recovery becomes promising for the hydrocarbon fuels conversion, primarily natural gas methane, in order to obtain a higher-potential fuel with increased accumulated energy density. The efficiency of thermochemical recovery due to equipping a high-temperature submerged combustion melting furnace by exhaust gas temperature of at least 1200 °C with an additional thermochemical reactor were evaluated. Bibl. 16, Fig. 6, Tab. 3.
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