The present disclosure provides a process for preparing a needle coke or a crystalline coke from aromatic rich hydrocarbon streams. The process includes preparing a needle coke or a crystalline coke from Pyrolytic Fuel Oil (PFO) and Clarified Oil (CLO) stream along with Purified fraction of CLO after solvent separation of refractory asphaltene compounds while the low boiling fractions separated from PFO and light gasoil (LGO) from the thermal cracking section are selectively hydro cracked to produce high value aromatic chemicals.

Systems and methods are provided for co-processing plastic waste in a coker as part of an integrated refinery environment that produces kerosene, jet fuel, and/or jet fuel blending components as a product. The co-processing can be performed in a fluidized coker, a delayed coker, or a combination of fluidized cokers and delayed cokers. After coking, hydroprocessing can be performed on one or more portions of the coker effluent that contribute to formation of the kerosene, jet fuel, and/or jet fuel blending component product(s). The hydroprocessing can be used to reduce or minimize the presence of unexpected nitrogen contaminants in the resulting kerosene, jet fuel, and/or jet fuel blending component product(s).

A computer-implemented method for predicting one or more parameters of calcinated coke produced by a coke production system includes acquiring data indicative of at least one of one or more feedstock properties, one or more coke heating properties, or one or more coke storage properties, inputting the acquired data into a coke predictive model, and providing by the coke predictive model one or more predicted coke parameters corresponding to a feedstock received by the coke production system and based on the acquired data.

Systems and methods are provided for integration of polymeric waste co-processing in cokers to produce circular chemical products from coker gas oil, including a method of producing circular chemical products comprising: providing a coker gas oil that is at least partially derived from polymeric waste, wherein the coker gas oil has a paraffin content of about 5 wt % to about 50 wt %, a sulfur content of about 0.1 wt % to about 7 wt %, and a halide content of about 0.1 wppm to about 5 wppm; and converting the coker gas oil into at least a polymer.