高温模拟蒸馏法测定聚α-烯烃合成油的组分与含量

石油炼制与化工 ›› 2026, Vol. 57 ›› Issue (10): 125-130.

高温模拟蒸馏法测定聚α-烯烃合成油的组分与含量

刘倩,赵义华,戴汝熙,徐人威

中化石油化工研究院（泉州）有限责任公司

收稿日期:2026-04-02 修回日期:2026-05-28 出版日期:2026-10-12 发布日期:2026-09-20
通讯作者: 赵义华 E-mail:zhaoyihua1@sinochem.com

DETERMINATION OF COMPOSITION AND CONTENT OF POLY-α-OLEFIN SYNTHETIC OIL BY HIGH-TEMPERATURE SIMULATED DISTILLATION METHOD

Received:2026-04-02 Revised:2026-05-28 Online:2026-10-12 Published:2026-09-20

摘要/Abstract

摘要： 基于ASTM D7169 标准方法，采用高温模拟蒸馏法对不同黏度的聚α-烯烃合成油（PAO）进行测定，可精准获得各组分分布与含量。本方法以聚合蜡与正构烷烃作为模拟蒸馏的保留时间校正标样，可以有效明确样品的组成及聚合度；同时，通过参考样品测定响应因子，进一步获取样品的回收率与回收温度，从而实现对各组分含量的精准计算。该分析方法兼具良好的准确性与重复性，相较仅能分析PAO低聚物组分及含量的常规气相色谱-质谱联用法，高温模拟蒸馏法还可同步测定PAO高聚物组分含量与沸点，可为深入探究PAO的性能提供重要的技术支撑。

关键词: 高温模拟蒸馏, 聚α-烯烃合成油, 组分分析, 馏程分布

Abstract: Based on the ASTM D7169 standard method, this paper employs high-temperature simulated distillation to determine the components of poly-α-olefin (PAO) synthetic oil with different viscosities, enabling accurate acquisition of component distribution and content. This method utilizes polymeric wax and n-alkanes as retention time calibration standards for simulated distillation, effectively clarifying the composition and degree of polymerization of the samples. Meanwhile, the response factor was determined through the analysis of reference samples, allowing for further acquisition of sample recovery rate and recovery temperature, thereby achieving precise calculation of the mass percentage of each component. This analytical method demonstrates good accuracy and repeatability. Compared with conventional gas chromatography-mass spectrometry method, which can only analyze the components and content of PAO oligomers, high-temperature simulated distillation also enables the simultaneous determination of the content and boiling point of PAO polymers, providing crucial technical support for in-depth investigation of PAO properties.

Key words: high-temperature simulated distillation, poly-α-olefin synthetic oil, component analysis, boiling range distribution

刘倩赵义华戴汝熙徐人威. 高温模拟蒸馏法测定聚α-烯烃合成油的组分与含量[J]. 石油炼制与化工, 2026, 57(10): 125-130.

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