Patent ID: 7959888

Claim:
A method of producing a needle coke, comprising: coking a feedstock composition to produce a raw coke having a structure such that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the (002) plane and 1500 or less in the (110) plane; and calcining the raw coke at a temperature of 800° C. to 1600° C., wherein the feedstock composition comprises a first heavy oil and a second heavy oil, wherein the first heavy oil has an initial boiling point of 200° C. or higher and is produced by hydrodesulfurizing a heavy oil with a sulfur content of 2 percent by mass or more at a total pressure of 16 MPa or greater so that a hydrocracking rate will be 30 percent or less, and wherein the second heavy oil has an initial boiling point of 150° C. or higher and a sulfur content of 0.5 percent by mass or less and is produced as a residue by fluidized catalytic cracking of a hydrocarbon oil.