通过μSARA-HPLC加速和,芳香,树脂,青 (SARA) 分析,以通过μSARA-HPLC进行高准确性石油剖析
Ibrahim Atwah1, Maram Alsaif1, Muhammad Usman2
1EXPEC Advanced Research Center, Saudi Aramco, P.O. Box 5000, Dhahran 31311, Saudi Arabia.
ACS omega
|July 14, 2025
概括
本研究介绍了一种自动化的高性能液态染色学 (HPLC) 系统,用于快速的和物,芳香物,树脂和青物 (SARA) 分析. 优化的μSARA-HPLC方法显著减少了分析时间,并提高了石油特征的可重现性.
科学领域:
- 石油地质化学 石油地质化学
- 分析化学 分析化学
- 染色体学 染色体学 是一种染色学.
背景情况:
- 和物,芳香物,树脂和青 (SARA) 分析对于了解原油特性至关重要.
- 当前的SARA分析方法经常受到长时间运行,复杂性和可重现性问题的困扰.
- 需要更快,更可靠和自动化的SARA分析技术.
研究的目的:
- 开发和验证一个优化的,自动化的SARA分析系统,使用高性能液态染色学 (HPLC).
- 显著减少分析时间,提高SARA分析的可重复性.
- 为石油特性提供可靠和可扩展的方法.
主要方法:
- 使用了一种新的μSARA-HPLC系统,其中有三个专用列 (Polaris Si-SA MetaGuard,ZORBAX SB-CN,ZORBAX RX-SIL) 用于分离分数.
- 实施了受控的溶剂梯度和中期流量逆转,以实现全面的分离.
- 采用双重检测 (ELSD和DAD) 和使用GC-MS和FT-ICR-MS进行验证,以准确量化.
主要成果:
- 实现了35分钟的完整SARA分析运行时间,比现有方法显著减少.
- 证明了高灵敏度,检测极限低至0.05%的重量,平均恢复率为99.52%.
- 在四个月的时间里,通过各种原油和青类型验证了优异的可重复性 (<1%的偏差).
结论:
- 开发的μSARA-HPLC系统为SARA分析提供了快速,可靠和自动化的解决方案.
- 这种方法解决了传统技术的局限性,提高了石油的特性.
- 该系统有可能在SARA分析的研究和工业应用中推进标准化.
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