Coker Furnace Tube Inspection with Access from Outside of the Tube
Cokers contain tubes (known as coils) carrying hydrocarbons which are heated by means of gas burners as they pass through the furnace. On the flame (hot) side of the tube, internal coke deposits can build up, and next to these, in the tube wall, carburization takes place. The carburized material has less ductility than the virgin material and eventually can rupture.
The solution:
Carburization can be detected by electromagnetic and ultrasonic means. Russell NDE offers rapid scanning of Furnace tubes using E-PIT probes followed by TOFD (Time of Flight Diffraction) to accurately size the case depth of carburized material.
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