Patent ID: 9732278
Date: 2017-08-15
CPC Classifications: C10B

Claim:
1. A method for producing needle coke, the method comprising the steps of: coking a feedstock oil comprising light oil and heavy oil at 400 to 600° C. to obtain raw coke, wherein the light oil has an initial boiling point of 180° C. or more and an end point of distillation of 380° C. or less, and the heavy oil has an initial boiling point of 200° C. or more, and comprises 50% by mass or more of an aromatic component, sulfur content of 0.5% by mass or less, and nitrogen content of 0.2% by mass or less, and calcining the raw coke at 1000 to 1500° C. to obtain the needle coke having sulfur content of 0.3% by mass or less and a coefficient of thermal expansion of 1.5×10