The quality of petroleum coke produced from Liaohe inferior super sticky oil will be upgraded to 1A from 3B after pretreating.

• 用预处理后的辽河劣质超稠油为原料试制的石油焦,其品质可以由预处理前的3B级上升到预处理后的1A级,大幅度地提高了石油焦的档次。