The Different Types and Causes of Coke Drum Bulging

Presented By

Dr. Mahmod Samman - Houston Engineering Solutions, LLC

Conference: Budapest 2017

Historically, bulging in coke drum has been treated as a single failure mode caused by the same loading mechanism. A recent study of a database of one hundred and eighty four coke drums concluded that this assumption is incorrect. The research which examined drums of different metallurgies, ages, sizes, and wall thicknesses was able to identify nine distinct types of bulges and relate them to various loading mechanisms, design features, operating practices, and fabrication methods. This published study has changed the way we look at coke drum bulges. In this presentation, we review the findings and discuss how they can help us improve our design, fabrication, and operation of coke drums.

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