The authors’ companya licensed a two-drum delayed coking technology process unit to Grupa LOTOS in Gdansk, Poland. At the engineering design stage of the project, a closed-coke handling system was selected in lieu of a conventional open pit-pad system. The main reason for selecting the proprietary closed-coke slurry systemb (CCSS) was to mitigate the issue of coke fines and volatile organic compounds (VOCs) emissions. The unit was successfully commissioned in 2019. The first implementation of this proprietary CCSS presented a few challenges that were overcome by carrying out some targeted engineering modifications. This article provides a comparison between the conventional coke handling sys
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