Method and system to remove coke from a coker drum

Details Method and system to remove coke from a coker drum Method and system to remove coke from a coker drum

2011-05-03

2011-05-03

Bhat, Nina (Department: 1771)

Distillation: processes, thermolytic

With measuring, testing or inspecting

C201S002000, C201S003000, C134S018000, C134S039000

Reexamination Certificate

active

07935226

ABSTRACT:
A method to remove coke from a coker drum is disclosed. The method includes the steps of impinging fluid from a fluid jet on the inside surface of the coker and then determining the vibration signal of the coker drum. The signal is then transformed to determine the amplitude versus frequency by a Fourier Transform of the vibration signal. The amplitude change of the vibration signal as it goes through a maximum, determines when the coke layer has been cut. The fluid jet is lowered into a new layer of coke.

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