抽余油产品质量优化成果

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引用格式：. 抽余油产品质量优化成果[J]. 当代化工，2026,55（4）：985-990.

MA Limin, ZHAO Xiaolin, WEI Junwei. Achievements in Raffinate Oil Product Quality Optimization[J]. Contemporary Chemical Industry, 2026, 55(4): 985-990.

关键词：抽余油；加氢；乙烯裂解原料；烯烃饱和；液相加氢；催化剂；能耗

中图分类号：TQ221.2；TE62

文献标志码：A

文章编号：1671-0460（2026）04-0985-06

Achievements in Raffinate Oil Product Quality Optimization

MA Limin, ZHAO Xiaolin, WEI Junwei

( Aromatics Department, Zhejiang Petroleum & Chemical Co., Ltd., Zhoushan Zhejiang 315200, China )

Abstract: Raffinate oil, as an ethylene cracking feedstock, offers the advantage of high resource utilization. However, mass fraction 9% - 10% olefins in the raffinate oil can reduce the yield of the ethylene cracking unit, impacting the overall efficiency of the industrial chain. To address this issue, a petrochemical company in Zhejiang implemented a technical revamp of its aromatics extraction unit by constructing a new 1.2 Mt·a -1 raffinate oil liquid-phase hydrogenation unit. In this paper, the process flow, technical characteristics, and catalyst selection of the unit were introduced. The entire process from startup and catalyst loading to the initial commissioning and trial run was reviewed, calibration data under 100% and 110% load conditions were analyzed. The calibration results indicated that after hydrogenation, the average olefin mass fraction in the raffinate oil product was reduced to 0.39%, surpassing the design target (≤1%). The actual energy consumption of the unit was 1.07 kg of standard oil per ton of feed, lower than the design value. Material balance was generally as expected, major equipment operated normally, and emissions of waste gas and water met standards.

Keywords: Raffinate oil; Hydrogenation; Ethylene cracking feedstock; Olefin saturation; Liquid-phase hydrogenation; Catalyst; Energy consumption

脱烯烃催化剂作为一种贵金属催化剂，具有低温易得的优势，但是价格昂贵，对原料油的杂质含量要求较为苛刻[1]。（剩余9962字）