Method and system for producing low-sulfur petroleum coke by using ethylene tar and catalytic slurry oil

The invention discloses a method and a system for producing low-sulfur petroleum coke by using ethylene tar and catalytic slurry oil, and belongs to the field of petrochemical industry. The method comprises the following steps: ethylene tar is subjected to hydrogen pretreatment and then mixed with a part of catalytic slurry oil, the mixture enters a radiation furnace chamber of a heating furnace to be heated, and the other part of catalytic slurry oil directly enters another radiation furnace chamber of the heating furnace to be heated; the two furnace chambers adopt different outlet temperatures, and the two streams are converged at the outlet of the heating furnace and then enter a coke tower together for coking reaction. According to the invention, two materials of ethylene tar and catalytic slurry oil are fully utilized, and high-quality and high-yield low-sulfur petroleum coke is prepared while furnace tube coking is prevented. 本发明公开了一种利用乙烯焦油和催化油浆生产低硫石油焦的方法及系统，属于石油化工领域。所述方法包括：乙烯焦油经临氢预处理后与一部分催化油浆混合后进入加热炉的