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For some time, new silica stone materials have been available for the liner walls of coke ovens, that have a greater density, and are therefore significantly more successful in the conduction of heat than conventional materials. In theory, due to these improved heat conducting qualities, either a higher degree of productivity can be achieved when working at the same temperature, or a similar output at a lower temperature.
Experiments were conducted to make a heat technological comparison between a battery with heating walls with normal heat conducting qualities, with a new battery, similar in construction fitted with liner walls capable of conducting significantly higher temperatures. The oven and heat measurements in both these batteries were equal.
With the battery constructed out of materials capable of conducting high temperatures, the same output could be achieved as with the other battery in the comparison, at approximately 50 K lower flue temperature. This led to lower NO(x) emission when burning. In contrast to the results published in various pieces of literature, the specific consumption of heat by the two batteries was equal within the constraints of accuracy of measurement. This was due to the heat emission of coke and crude gas being almost equal. After significantly reworking the results quoted in the literature, it was proven that no significant difference in specific heat consumption occurred during the earlier experiments involving batteries of different materials, when taking into consideration the amounts of heat extracted in the form of coke and natural gas. .

Additional information

Authors: HUHN F, DMT Gesellschaft für Forschung und Prüfung mbH, Bochum (DE);EISENHUT W, DMT Gesellschaft für Forschung und Prüfung mbH, Bochum (DE)
Bibliographic Reference: EUR 15231 DE (1997) 56pp., FS, ECU 7
Availability: Available from the (2)
ISBN: ISBN 92-827-8367-7
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