Tests show that rubber oil can be obtained with KT solvent refining, and the by-product can be used as catalytic cracking stock.
通过实验证明，KT液溶剂精制工艺能生产出橡胶用油，其副产物抽余油可作为催化裂化原料。
2
Cyclone of a regenerating system in a catalytic cracking unit in the Changling Oil Refining Plantcan not be protected by using conventional linner of alumina because of its small size.
长岭炼油厂新型催化裂化装置再生系统旋风分离器尺寸小，不能采用常规氧化铝内衬保护。
3
Catalytic cracking is a main oil refining technique of making heavy oil lighter, and the mark and pillar of oil refining industry.