Classification of Refined Petroleum Products
8.3 - Petroleum coke (including coke from catalytic cracker)
'Petroleum coke (including coke from catalytic cracker)' includes all petroleum coke. Petroleum coke is obtained mainly by cracking and carbonizing of residue feedstocks, tar and pitches in processes such as delayed cocking or fluid cocking. The two most important qualities are green coke and calumniated coke. This category also includes catalyst coke deposited on the catalyst during refining processes: this coke is not recoverable and is usually burned as refinery fuel. (Harmonized System code 2713.11, 2713.12)
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