Technology

Delayed Coking is a semi-continuous process using alternating drums that are switched off-line after filling. Support facilities include closed blowdown, coke cutting and handling, and a Water recovery system.

The Chevron Lummus Global (CLG) proprietary Delayed Cocking Technology design features online computer control, fully enclosed automatic unheading, single or double fired heaters, state-of-the-art coke drum mechanical design, vertical plate coke drum technology, helical baffle exchanger in fouling services, and an innovative Water management/Coke recovery system.

The process can handle a variety of feedstocks, such as Petroleum derived Resids, cracked Materimls (Pyrolysis Tar and Cycle Oils), and liquid feedstocks derived from Coal.

The CLG design maximizes distillate yield while achieving the specification requirements of the downstream Hydroprocessing Units.

Source: Chevron Lummus Global, CLG Delayed Coking Technical Sheet