TREATMENT METHOD OF BLACK OIL BY DELAYED COKING Russian patent published in 2009 - IPC C10B55/00 

FIELD: oil and gas production.

SUBSTANCE: invention elates to oil processing and can be used at delayed coking of black oil. Method consists of coking stage in reactor with receiving of fraction-shaped coke and stage of preparation of reactor to following coking cycling, including steaming of coke in reactor, unloading of coke from reactor in under-reactor bin, removal of water, reactor pressure testing by water steam. Stage of coking is implemented at temperature 505-530°C during 6-8 hour and under pressure not more than 0.2 MPa. Characteristics of preparation stage is unloading of coke after its steaming at temperature 390-420°C and under pressure of water steam or inert gas not less than 0.1 MPa in under-reactor bin, installed pressurised relative to reactor, herewith cooling of coke by water is implemented in under-reactor bin.

EFFECT: method provides up many times reduction of cycle duration of coking.

3 cl, 2 tbl