One of criteria for coker drum invalidation is whether the loin-drum deformation has exceeded the critical value.
An additive to increase delayed coker yield has been prepared based on the mechanism of enhancing light oil yield and reducing the yields of coke and dry gas.
A model and a application model of coke laydown on inner wall of the coker furnace tube have been developed.
It is found that the major nitrogen sources in coker gas oils are associated with relatively small pentane insoluble species and an even smaller, highly polar, hexane insoluble species.
An integration technology of solvent extraction succeeded by hydrocracking for processing coker gatch was developed by Refining Research Institute of Luoyang Petrochemical Engineering Company.
The light and sweet crudes from Saudi by its largest coker refinery at Qingdao are priced on a floating formulas against a basket of benchmark crudes.
Considering the high contents of olefins and nitrogen, the whole fraction of delayed coker distillates (including light and heavy naphtha, gas oil) must be hydrotreated.
The technology widened the reforming feedstock source and solved the way out of the coker gasoline.
The principle and improvement of panel coker as well as the evaluation on the detergency of CC diesel engine oil by improved panel coker were described.
