Delayed Coking Technology

(1) Operation can be flexibly adjusted to meet market demands, including maximizing distillate yield, maximizing light oil yield, increasing LCGO yield, and producing needle coke, etc.
(2) The delayed coking technology can process various residues, including AR, VR, DOA, hydrocracking unconverted residue, visbroken residue, FCC slurry, steam cracking tar, etc.
(3) The heater with double fired, multi-point steam (or water) injection, online spalling, online steam-air decoking and other technologies has longer run length. The high severity coking technology reduces low valuable coke yield and increases high valuable liquid product yield.
(4) Anti-foaming agent injection to top of coke drums reduces coke fine carry-over into fractionators. Application of upper circulation washing, lower spraying washing and high efficiency internals in fractionators reduces asphaltenes and metal content of HCGO.