Optimized coke cutting method for decoking substantially free-flowing coke in delayed cokers
First Claim
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1. A method for coke removal in delayed coker drums comprising the steps of:
- (i) draining a drum containing substantially free-flowing coke;
(ii) performing a vibration signature analysis on the coke drum to identify any areas on the drum where coke remains attached to the wall of the drum after the draining step;
(iii) cutting the coke from the areas on the drum identified by the vibration signature analysis.
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Abstract
A method for coke removal in delayed coker drums is provided. The method comprises the steps of draining from the drum of substantially free-flowing coke, performing a vibration signature analysis on the drum to identify whether and where any coke remains attached to the interior wall of the drum after the draining step, and cutting the coke from the areas identified by the signature analysis step.
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Citations
20 Claims
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1. A method for coke removal in delayed coker drums comprising the steps of:
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(i) draining a drum containing substantially free-flowing coke; (ii) performing a vibration signature analysis on the coke drum to identify any areas on the drum where coke remains attached to the wall of the drum after the draining step; (iii) cutting the coke from the areas on the drum identified by the vibration signature analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. A method for determining whether a coke drum is clean by performing a vibration signature analysis on the coke drum to identify any areas on the drum where coke remains attached to the wall of the drum.
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13. A method for preparing a delayed coker drum for a new batch of feed after being drained of substantially free-flowing coke comprising the steps of:
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(i) performing a vibration signature analysis on the coke drum to identify any areas on the drum where coke remains attached to the wall of the drum after the draining step; (ii) cutting the coke from the areas on the drum identified by the vibration signature analysis. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification