The pyrolysis light oil is a side-product of the pyrolysisunit in small petrochemical plants.
裂解轻油是小型石化企业的裂解副产物，主要成分为C6～C8芳烃。
2
By analyzing for the flange leakage on a heavy oil catalytic pyrolysisunit, the writer put forward a treatment method, i. e. to replace old asbestos gasket with a compound corrugated gasket.
通过对重油催化裂化装置中法兰泄漏原因的分析，提出了处理方法：将原石棉密封垫片改为波齿复合密封垫片。
3
At present, the study on rotating cone flash pyrolysis and liquefaction unit of biomass is a focus and the core of this technology is the design of rotating cones.