Evaluation of thermal cracker operation by use of an infrared camera

Emil H. Edwin; Tore Arnesen; Gert-Inge Hugosson

doi:10.1117/12.304722

26 March 1998 Evaluation of thermal cracker operation by use of an infrared camera

Emil H. Edwin, Tore Arnesen, Gert-Inge Hugosson

Proceedings Volume 3361, Thermosense XX; (1998) https://doi.org/10.1117/12.304722
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

The Tube Metal Temperature (TMT) distribution in thermal cracker operation is a critical parameter in respect to tube material lifetime, furnace production capacity and product selectivity. The Agema 470 IR camera is used in the present work to monitor the TMT distribution and the factors that influence on the TMT distribution. Flame shape, burner performance, refractory condition and insulation are visualized by the use of 3.9 micrometers and 3.36 micrometers filters attached to the RI camera. The 'invisible' methane/hydrogen flame is visualized by using a 3.36 micrometers IR filter, which is in the region of a typical vibration frequency in the methane molecule. The measurement errors due to CO₂ and H₂O absorption in the flue gas are theoretical calculated and also observed during measurement. The thermovision camera has proven to be a useful supplement to furnace basic instrumentation and hand held pyrometers in order to verify the true state of the tubes, refractory and the burners during nominal operation and during decoking of thermal crackers. the present work was done early in 1995 with a rather large and heavy IR camera based on a mechanical scanner. The use of IR cameras in the petroleum industry has recently become even more interesting with the appearance of high resolution 'Handy Cam' cameras on the marked.

Citation Download Citation

Emil H. Edwin, Tore Arnesen, and Gert-Inge Hugosson "Evaluation of thermal cracker operation by use of an infrared camera", Proc. SPIE 3361, Thermosense XX, (26 March 1998); https://doi.org/10.1117/12.304722

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