Refiners can update coking units via two methods – recycle or zero-recycle operations. Depending on the capability of downstream units
either option can be used as part of clean-fuels program
Delayed cokers are the most effective processes to
decarbonize and demetallize heavy petroleum residues. This
refining process can provide 20% to 40% of the downstream
hydroprocessing feedstocks. Optimizing coker operation is
crucial to any clean fuels program. Effective use of coker
recycle can improve unit yields and the quality of
coker-liquid products. Zero-recycle and ultra-low recycle
operations for fuel-grade coking can be effectively to
optimize coker integration in a clean fuels
program.
Upgrading bottoms products. Delayed coker
modifications are commonly implemented in clean fuel programs
along with modi
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